TW201137906A - Coating solution - Google Patents

Abstract

On a collector, applied is a coating solution comprising a polysaccharide such as glycerylated chitosan, a polymer having a blocked-isocyanate structure such as polymer comprising a repeating unit derived from monomer having a blocked-isocyanate structure and at least one polymerizable unsaturated group, a solvent, and a conductive additive and/or electrode active material; and then a base is generated to form an under-coat layer or an electrode active material layer on the collector. A secondary battery such as a lithium ion battery or an electric double layer capacitor which employs an electrode having the under-coat layer or the electrode active material layer is assembled.

Description

201137906 VI. Description of the Invention: TECHNICAL FIELD OF THE INVENTION The present invention relates to a coating liquid. More specifically, the present invention relates to a coating liquid for an electrode for use in an electrochemical element such as a battery or an electric double layer capacitor. [Prior Art] As the electrochemical element, a battery such as a lithium ion battery (also referred to as a lithium ion battery) or a nickel hydrogen battery, and a capacitor such as an electric double layer capacitor or a hybrid electric capacitor are known. The electrode of the electrochemical element is generally composed of a current collector and an electrode active material layer. This electrode can be usually produced by applying a coating liquid containing an electrode active material, a binder, and a solvent to a current collector and drying it. Further, in order to reduce the internal resistance or the total resistance of the battery or the electric double layer capacitor, it is proposed to provide an undercoat layer between the electrode active material layer and the current collector. However, a film obtained by using a coating liquid containing a polysaccharide such as chitosan has high ion permeability or ion mobility, and it is considered that the internal resistance or total resistance of the lithium ion battery or the electric double layer capacitor can be lowered. For example, Patent Document 1 proposes to apply a coating liquid containing a hydroxyalkyl chitosan and an organic acid and/or a derivative thereof to a current collector to dry it to produce an electrode active material layer or an undercoat layer. The organic acid and its derivative have a function of crosslinking a hydroxyalkyl chitosan. Further, in Patent Document 2, it is disclosed that the coating liquid containing the polysaccharide cross-linker and the carbon particles is applied to the current collector to be dried, and the undercoat layer is set to be in the electrode active material. Between the layer and the collector. As the compound used for crosslinking the polysaccharide, for example, an organic acid such as maleic anhydride. On the other hand, Patent Document 3 discloses a carbonaceous material, a basal-based polysaccharide derivative, a compound having an isocyanate group in the molecule, and two or more active hydrogen groups which are reactive with the isononate group. A coating solution of the compound. A three-dimensional network structure can be formed by a compound having an isocyanate group in the molecule and a compound having two or more active hydrogen groups reactive with the isocyanate group. CITATION LIST Patent Literature Patent Literature 1: Patent Publication No. WO02008/015828 Patent Document 2: W02007/0435 1 5 Patent Document 3: JP-A-2002- 1 285 1 4 SUMMARY OF THE INVENTION PROBLEM TO BE SOLVED BY THE INVENTION However, Patent Document 1 The electrode active material layer or the undercoat layer obtained by the coating liquid containing an organic acid described in 2 or 2 may have an acid component remaining. The acid component has a tendency to erode a current collector composed of aluminum or copper. If the collector is eroded, it is worried that the resistance or the total resistance rises. Further, the compound having an isocyanate group used in the coating liquid described in Patent Document 3 has a very high reactivity. Therefore, it is necessary to make the crosslinking temperature as low as about 8 °C. In the cross-linking of the coating film, the surface of the film is generally indirectly connected to the inside of the film, so that the solvent is sealed to the inside of the film. There are also problems in that it is difficult to distill off the solvent and generate bubbles. Therefore, even if a three-dimensional mesh structure is formed, there is a case where a lithium ion battery or an electric double layer capacitor in which the electrode active material is easily moved and the function cannot be sufficiently exerted is obtained. Accordingly, it is an object of the present invention to provide an electrochemical device which is excellent in stability and has an internal resistance or a small total resistance and a coating liquid used for the production thereof. Means for Solving the Problems As a result of intensive studies to achieve the above object, the present inventors have found that coating a polymer containing a polysaccharide, a blocked isocyanate structure, a solvent, a conductivity imparting material, and/or an electrode active material The liquid is applied to the current collector to be dried, and an electrochemical element having excellent stability and internal resistance or low total resistance can be obtained. The present invention has been completed based on further knowledge of this knowledge. That is, the present invention encompasses the following. <1> A coating liquid containing a polysaccharide, a polymer having a blocked isocyanate structure, a solvent, and a conductivity imparting material and/or an electrode active material <2> A polymer having a blocked isocyanate structure contains a closed type The coating liquid described in the above <1> of the polymer of the repeating unit of the isocyanate structure and the monomer of at least one polymerizable unsaturated group. <3> The monomer having a blocked isocyanate structure and at least one polymerizable unsaturated group is the coating liquid described in <2> above, which is a compound represented by the formula (1) or the formula (2). 201137906

R is a hydrogen atom or a methyl group. Λτ

R2 (R2 is a hydrogen atom or a methyl group.) <4> The polysaccharide is modified by chitosan, hydroxyalkyl chitosan, carboxyalkyl chitosan 'caprolactone A coating liquid according to any one of the above <1> to <3>, which is selected from the group consisting of a glycan, a hydroxyalkylcellulose, and a carboxyalkylcellulose. <5> The coating liquid according to any one of the above <1> to <4>, wherein the S of the polymer having a blocked isocyanate structure is 20 to 300 parts by mass, based on 100 parts by mass of the polysaccharide. <6> A film formed by using the coating liquid according to any one of the above <1> to <5>. <7> A laminate for an electrode comprising a current collector and a layer a formed using a coating liquid containing a polysaccharide, a polymer having a blocked isocyanate structure, a solvent, and a conductivity imparting material. <8> A layer having a current collector and a coating liquid containing a polysaccharide, a polymer having a blocked isocyanate structure, a solvent, and a conductivity imparting material, in the form of layer -8-201137906, and electrode activity The electrode of the substance layer. <9> An electrode having a current collector and a layer b formed using a coating liquid containing a polysaccharide, a polymer having a blocked isocyanate structure, a solvent, and an electrode active material. <10> An electrochemical element having the electrode described in the above <8> or <9>. <11> The power supply system of the electrochemical device according to the above <10>, wherein the automobile having the electrochemical element described in the above <10> is used. <13> The transport device of the electrochemical device according to the above <10>, wherein the electrochemical device described in the above <10> has the electrochemical device described in the above <10> In the effect of the invention, the coating liquid of the present invention is applied to a current collector to be dried, whereby an electrode active material layer or an undercoat layer having excellent storage stability can be formed on the current collector. By using an electrode having the electrode active material layer or the undercoat layer, an electrochemical element having excellent stability and internal resistance or low total resistance can be obtained. BEST MODE FOR CARRYING OUT THE INVENTION The coating liquid of the present invention contains a polysaccharide, a polymer having a blocked isocyanate-9-201137906 structure, a solvent, and a conductivity imparting material and/or an electrode active material. The polysaccharide used in the coating liquid of the present invention is a monosaccharide (including a substituent and a derivative of a monosaccharide), and a polymer compound which is mostly polymerized by a glycosidic bond. The polymer compound is one which is hydrolyzed to form a plurality of monosaccharides. Generally, a monosaccharide polymerizer of 10 or more is called a polysaccharide. The polysaccharide may have a substituent, for example, a polysaccharide (amino sugar) having an alcoholic hydroxyl group substituted with an amine group, a carboxyl group or an alkyl group substituted, or a polysaccharide deacetylated. The polysaccharides may be any of the homopolysaccharides and the heteropolysaccharides. Hydroxyalkylpolysaccharides or derivatives thereof, carboxyalkylpolysaccharides are preferred because of their improved solubility in polar solvents and cross-linking of polymers having a blocked isocyanate structure. Alkyl polysaccharides are preferred. The hydroxyalkyl polysaccharides or derivatives thereof and carboxyalkyl polysaccharides can be produced by a known method. Specific examples of the polysaccharide include, for example, acacia sugar, starch sugar, branched starch 'arabinose, arabinogalactose, alginic acid, inulin, carrageenan, galactan, dextran, wood Glycan, xyloglucan, carboxyalkyl chitin, chitin, glycogen, polyglucomannan, keratan sulfate, polysialic acid, chondroitin sulfate A, chondroitin sulfate B, chondroitin sulfate C , cellulose, dextran, starch, hyaluronic acid, fructan, pectic acid, pectin, heparin, heparin, hemicellulose, pentasaccharide, /3-1,4,-mannan, α -1,6'-mannan, lichen starch, levosaccharide, lentinan, chitosan, amylopectin, carterin, and the like. Among these, candied sugar, starch sugar, branched starch, arabinose, arabinogalactose, inulin, carrageenan, galactan, dextran-10-201137906, xylan, wood Glucan, chitin, glycogen, polyglucomannan, cellulose, dextran, starch, fructan, pectin, hemicellulose, pentasaccharide, /5-1,4'- Mannan, α-1,6′-mannan, lichen starch, levulose, lentinan, chitosan, amylopectin, and carterin, the layer a later obtained by using the coating liquid of the present invention Or layer b is difficult to be acidic. Further, chitin, chitosan, hydroxyalkyl chitosan, carboxyalkyl chitosan, caprolactone modified chitosan, hydroxyalkyl cellulose or carboxyalkyl cellulose are ion-permeable High, so good. In this group, a group consisting of chitosan, hydroxyalkyl chitosan, carboxyalkyl chitosan, caprolactone modified chitosan, hydroxyalkyl cellulose and carboxyalkyl cellulose At least one of the best selected. These polysaccharides may be used alone or in combination of two or more. Examples of the hydroxyalkyl chitosan include hydroxyethyl chitosan, hydroxypropyl chitosan, and glycerylated chitosan. Examples of the hydroxyalkylcellulose include hydroxyethylcellulose and hydroxypropylcellulose. Examples of the carboxyalkyl chitosan include carboxymethyl chitosan and carboxyethyl chitosan. Examples of the carboxyalkyl cellulose include carboxymethyl cellulose and carboxyethyl cellulose. The polymer having a blocked isocyanate structure used in the coating liquid of the present invention is not particularly limited. The blocked isocyanate structure means that the isocyanate group reacts with the active hydrogen compound and becomes inactive at normal temperature. Heating the blocked isocyanate structure -11 - 201137906, the active hydrogen compound is separated to produce an isocyanate group. The resulting isocyanate group reacts with the hydroxyl group of the aforementioned polysaccharide to form a crosslinked structure. The polymer having a blocked isocyanate structure, which comprises a polymer derived from a repeating unit of a monomer (A) having a blocked isocyanate structure and at least one polymerizable unsaturated group in the molecule, containing the monomer (A) a polymer or the like of a repeating unit other than the repeating unit. Among these, a polymer containing a repeating unit derived from a monomer (A) having a blocked isocyanate structure and at least one polymerizable unsaturated group in the molecule is preferred. Further, the polymer containing a repeating unit other than the repeating unit of the monomer (A) may, for example, be an amine methyl sulfonate group-containing urethane polymer. Commercially available products include, for example, ELASTRON MF-9 (manufactured by Dai-ichi Kogyo Co., Ltd.). The monomer (A) having a blocked isononate structure and at least one polymerizable unsaturated group in the molecule is preferably a compound represented by the formula (1) or (2). [Chemical 3]

In the formula (1), R1 is a hydrogen atom or a methyl group.

-12- 201137906 In the formula (2), R2 is a hydrogen atom or a methyl group. These monomers (A) have been sold as 'for example, 2_(〇_[ 1, methyl propylamino) residue amino) ethyl methacrylate ("KarenzMC) I-BM" (registered trademark) ): 2-[(3,5-dimethylpyridinyl)carboxyamino]ethyl methacrylate ("BP" (registered trademark): manufactured by Showa Denko Co., Ltd.). The polymer having a blocked isocyanate structure used in the present invention may contain a repeating unit derived from another monomer (B) in addition to the repeating unit derived from the monomer (A). The monomer (B) ' is not particularly limited as long as it has at least one polymerizable unsaturated group in the molecule. For example, an ethylenically unsaturated aromatic compound such as styrene 'α-methyl phenyl b, 〇-methyl styrene, m-methyl styrene, ρ-methyl styrene; acrylic acid, methacrylic acid, crotonic acid, a carboxyl group-containing compound such as maleic acid, fumaric acid, itaconic acid, 2-(meth)acryloxyethyl succinic acid or 2-(methyl)acryloxyethyl hexahydrophthalic acid; Methyl methacrylate, ethyl methacrylate, propyl methacrylate, isopropyl methacrylate, butyl methacrylate, isobutyl methacrylate, tert-butyl methacrylate, amyl methyl Acrylate, amyl methacrylate, isoamyl methacrylate, hexyl methacrylate, octyl methacrylate, isooctyl methacrylate, 2-ethylhexyl methacrylate, hydrazine Methyl methacrylate, mercapto methacrylate, isodecyl methacrylate, dodecyl methacrylate, lauryl methacrylate, stearyl methacrylate, isostearyl sulfhydryl An alkyl methacrylate such as methacrylate; Fluoroethyl methyl-13- 201137906 acrylate, tetrafluoropropyl methacrylate, hexafluoroisopropyl methacrylate, octafluoropentyl methacrylate, heptafluorodecyl methacrylate, etc. Fluoroalkyl methacrylates; alkoxyalkyl methacrylates such as methoxyethyl methacrylate, ethoxyethyl methacrylate, methoxybutyl methacrylate; ethoxylate Polyethylene glycol methacrylate such as bisethylene glycol methacrylate, methoxy polyethylene glycol methacrylate, phenoxy polyethylene glycol methacrylate; methoxypolypropylene glycol Polypropylene glycol methacrylate such as acrylate, ethoxypolypropylene glycol methacrylate or phenoxy polypropylene glycol methacrylate; 2-(meth) propylene oxiranyl ethyl isocyanate, 1 , 3-bis(methyl)propenyloxy 2-methylpropane-2-isocyanate, 3-(meth)acryloxyphenyl isocyanate, isocyanate methacrylate, methyl-benzyl Methacrylate, hydroxy methacrylate, 2-hydroxyethyl methacrylate, 2 - Hydroxypropyl methacrylate, 3-hydroxypropyl methacrylate, 2-hydroxybutyl methacrylate, 2-hydroxy 3-phenoxypropyl acrylate, 4-hydroxybutyl methacrylate, polyethylene Hydroxy methacrylate, phenyl methacrylate, benzyl methacrylate, benzene, such as alcohol monomethacrylate, polypropylene glycol monomethacrylate, caprolactone modified alcohol monomethacrylate Aromatic methacrylates such as oxyethyl methacrylate, biphenyl methacrylate, naphthyl methacrylate, cyclohexyl methacrylate, isobornyl methacrylate, dicyclopentane Alkenyl methacrylate, dicyclopentenyloxyethyl methacrylate, dicyclopentanyl methacrylate, adamantyl methacrylate, norbornyl methacrylate, etc. have an alicyclic ring Methyl acrylate of the skeleton, -14- 201137906 tetrahydrofurfuryl methacrylate, epoxy propyl methacrylate, caprolactone modified single-end methacrylate, single crystal with a naphthenic skeleton Terminal methyl acrylate and the like. Further, the methacrylate is either methacrylate or acrylate. The (meth) acrylonitrile group is any one of a methacryl fluorenyl group and an acryl fluorenyl group. Among the monomers (B), 'the methacrylate having an alicyclic skeleton is preferable, and the dicyclopentanyl methacrylate is particularly preferable. The polymer having a blocked isocyanate structure which is preferably used in the present invention is preferably from 5 to 100 moles from the repeating unit of the above monomer (A). More preferably, it is 20 to 85 mol%, more preferably 25 to 8 mol%, and the repeating unit derived from the monomer (B) is preferably 0 to 95 mol %, more preferably 15 to 80 mol%, more preferably 20 to 75 mol%. Also 'monomer (B) 'uses acrylic acid, methacrylic acid, crotonic acid, maleic acid, fumaric acid' itaconic acid, 2-(methyl) propylene methoxyethyl succinic acid, 2-(methyl When a carboxyl group-containing compound such as acryloxyethyl hexahydrophthalic acid is used, in the polymer containing a repeating unit derived from the monomer (A), the repeating unit derived from the carboxyl group-containing compound is preferably 60 mol% or less. More preferably, it is 50% by mole or less, and most preferably 40% by mole or less. In this manner, it is difficult to apply the coating liquid of the present invention and the layer a and the layer b which are obtained after drying to be acidic. The polymer having a blocked isocyanate structure which is preferably used in the present invention has a weight average molecular weight of from 1,000 to 10,000, more preferably from 2000 to 8,000, as determined by colloidal permeation chromatography (GPC). 15-201137906 The polymerization agent having a blocked isocyanate structure in the coating liquid is used as a solvent for the coating liquid of the present invention in an amount of 20 to 300 parts by mass based on 100 parts by mass of the polysaccharide, and examples thereof include a non-aqueous solvent or proton. Polar solvent, etc. The aprotic polar solvent may, for example, be an ether or a carbonate. The aprotic polar solvent is preferably evaporating at a temperature lower than the temperature at which the crosslinking reaction of the isocyanate is started. The boiling point is preferably from 50 to 300 t at atmospheric pressure, more preferably 100. In the present invention, as a solvent, it is preferred to contain an aprotic polarity. The protic polar solvent may, for example, be an alcohol or a polyhydric protic polar solvent, such that the coating liquid can be used as a polymer having a closed structure at a boiling point of a wet protic polar solvent of a current collector. It is preferred that the isononate production temperature is low. It is preferred that the boiling point of atmospheric pressure is less than 100 °c. If the protonic polar solution is higher than the isocyanate of the polymer having a blocked isocyanate structure, the protic polar solvent remains in the coating film, and the solvent remains. 'It becomes easy to react with the isocyanate group. , the situation of changing the cross-linking of polysaccharides. The preferred protic polar solvent may, for example, be ethanol or iso-n-propyl alcohol. The amount of the protic polar solvent is not particularly limited, and is preferably 1 to 20% by mass based on the total amount of the solvent. If the effect of less improvement is lower. In many cases, it is easy to reduce the amount of evapotranspiration when drying. It is preferred that the polar group, the guanamine group and the polysaccharide are preferred. Those with -22 0〇C solvent are equal. Increased usability. On the isocyanate, the boiling point of the ester at the boiling point of the agent is extremely difficult to produce propyl alcohol, and the wettability in the coating liquid, and the crosslinking of the polysaccharide -16-201137906 with the isocyanate group become difficult to occur. The amount of the solvent used in the coating liquid of the present invention can be adjusted to a viscosity suitable for the coating operation, and is not particularly limited. For example, the amount of the solvent used is preferably 100 to 10,000,000 mPa·s, more preferably 1, 50,000 to 50,000 mPa·s, and still more preferably 5,000 〜. Quantities of 20,000111?&amp;.3. For example, when the coating operation is carried out, the amount of the solvent used is preferably from 50 to 99 parts by mass, more preferably from 70 to 95 parts by mass, more preferably from 70 to 95 parts by mass, based on 1 part by mass of the coating liquid. The conductive material to be used for the coating liquid of the present invention is preferably a conductive carbon material having carbon as a main constituent component. As the conductive carbon material, acetylene black, high-efficiency conductive carbon black, or the like is preferable. Carbon black; gas-phase carbon fiber; graphite, etc. These conductive carbon materials may be used alone or in combination of two or more. Conductive imparting materials, with a powder resistance of 100% in the powder compact at lx ΙΟ - 1 Ω . cm or less. The conductivity imparting material may be spherical or the like, or a shape such as a fiber, a needle, or a rod. The particle-shaped conductive material may be due to its particle size. There is no particular limitation, but the volume-based average particle diameter is preferably from 10 nm to 50 μm, and that of l〇nm to 100 nm is better. The conductivity of the opposite-direction shape is imparted to the material due to the large surface area per unit weight and the current collector. Or the contact area of the electrode active material or the like becomes large, so even a small amount is added. It is also possible to increase the conductivity between the current collector and the electrode active material or between the electrode active materials. The conductive carbon material having an irregular shape may be, for example, a carbon nanotube or a carbon nanofiber. The rice tube or the carbon nanofiber has a fiber diameter of usually 0.001 to 0.5 μm, preferably 0.003 to 0.2 μm, and a fiber length of usually 1 to ΙΟΟμηη, preferably 1 to 30 μm, is preferable in terms of conductivity improvement. The total amount of the polysaccharide in the coating liquid for forming the layer a to be described later and the polymer having the blocked isocyanate structure is preferably 20 to 300 parts by mass based on 100 parts by mass of the conductivity imparting material. Further, the layer a is formed. The solid content of the coating liquid is preferably from 1 to 50% by mass. The electrode active material used in the coating liquid of the present invention may be a user of an electrochemical element such as a lithium ion battery or an electric double layer capacitor, and The electrode active material used in the lithium ion battery is different between the positive electrode and the negative electrode. The positive electrode active material used in the lithium ion battery is a substance that can adsorb and desorb lithium ions, and is not particularly limited. Specifically, lithium cobaltate (LiCo02); lithium manganate (LiMn204); lithium nickelate (LiNi02); Co, Μη and Ni 3-membered lithium compounds (Li(CoxMnyNiz)02), sulfur-based compounds (TiS2) An olivine-based compound (LiFeP04) or the like is preferable. The total amount of the polysaccharide in the coating liquid for forming the layer b of the positive electrode of the lithium ion battery and the polymer having the blocked isocyanate structure is relative to the positive electrode active material. 100 parts by mass, preferably 0.1 to 30 parts by mass. The negative electrode active material used in the lithium ion battery is not particularly limited. Specific examples thereof include graphite carbon such as graphite, amorphous graphite carbon, and oxygen-18. - 201137906 Compounds, etc. The total amount of the polysaccharide in the coating liquid for forming the layer b of the negative electrode of the lithium ion battery and the polymer having the blocked isocyanate structure is 0.1 mass%, preferably 0.1 to 30 mass, relative to the negative electrode active material. Share. In order to improve the conductivity of the layer b, the coating liquid for the layer b of the electrode for a lithium ion battery is preferably used, and the conductive material and the electrode active material are preferably used. The amount of the conductivity imparting material is preferably from 1 to 15 parts by mass based on 1 part by mass of the electrode active material. Further, the solid content of the coating liquid for forming the layer b is preferably from 50 to 99% by mass. The electrode active material used in the electric double layer capacitor can be used for the positive electrode and the negative electrode. The electrode active material used in the electric double layer capacitor is preferably activated carbon. Activated carbon is preferred from the viewpoint of increasing the capacitance, and having a larger specific surface area. Specifically, the activated carbon is preferably a BET specific surface area of 800 to 2500 m 2 /g. For activated carbon, the average particle diameter (D50) is preferably Ιμπι~50μιη. Here, the average particle diameter (D 5 0) of the active carbon is a 50% cumulative particle diameter (μηι) of the volume basis measured by a laser particle size analyzer. Examples of the activated carbon include coconut shell activated carbon and fibrous activated carbon. The activated carbon is not particularly limited by the activation method, and may be obtained by a steam activation method, a drug activation method or the like. Further, in order to obtain a high-capacity capacitor, it is preferable to apply an alkali-activated treatment, that is, alkali-activated carbon. The alkali activated carbon ', for example, a coconut shell, coke, a polymer carbide, or a heat-graphitizable carbide or an easily graphitizable carbide is obtained by heat treatment in the presence of an alkali metal compound. The graphitizable carbides are, for example, petroleum-based pitches, stone carbon-based -19-201137906, and those obtained by heat-treating asphalts such as organic solvent-soluble components thereof, or carbides of polychlorinated compounds. The alkali metal compound may, for example, be sodium hydroxide, potassium hydroxide or potassium carbonate. The activated carbon preferably has a compact bulk density (knock tightness) in the range of 〇3 g/cm 3 to 0.9 g/cm 3 . If the compact bulk density is too small, the compactness of the crucible becomes small, and the unit volume of the electric double layer capacitor or the capacitance of the unit cell tends to decrease. When the compact bulk density is too large, the capacitance per unit weight is lowered, and the amount of the electrolytic solution tends to be reduced, and the capacity retention rate is lowered. The total amount of the polysaccharide in the coating liquid for forming the layer b of the electrode for the electric double layer capacitor and the polymer having the closed isocyanate structure is preferably 1 part by mass based on the electrode active material. 0.1 to 20 parts by mass. In the coating liquid for forming the layer b of the electrode for an electric double layer capacitor, in order to improve the conductivity of the layer b, it is preferable to use the above-mentioned conductivity imparting material and the electrode active material. The amount of the conductivity imparting material is preferably 0.1 to 20 parts by mass based on 100 parts by mass of the electrode active material. The solid content of the coating liquid for forming the layer b is preferably from 50 to 99% by mass. Further, the coating liquid of the present invention may be added with various additives as necessary. For example, other crosslinking agents, dispersants, wetting agents, tackifiers, coupling agents, sedimentation inhibitors, skinning inhibitors, polymerization inhibitors, antifoaming agents, electrostatic coating improvers, casting inhibitors, color separation An anti-blocking agent, a flattening agent, an effect promoting agent, a crack preventing agent, and the like. The preparation method of the coating liquid of the present invention is not particularly limited. For example, a method in which a polysaccharide and a polymer having a blocked isocyanate structure are dissolved in a solution of -20-201137906, and a conductive imparting material and/or an electrode active material are added to the solution to be dispersed is used. Further, a conventional kneading machine or a mixer can be appropriately selected for the preparation of the coating liquid in accordance with the viscosity of the coating liquid or the like. The electrode laminate of the present invention is a layer a having a current collector and a coating liquid using a polymer containing a polysaccharide, a polymer having a blocked isocyanate structure, a solvent, and a conductivity imparting material. The electrode laminate of the present invention can be used in the manufacture of an electrode instead of the conventional collector. The electrode of the present invention is a layer a formed of a current collector and a coating liquid containing a polysaccharide, a polymer having a blocked isocyanate structure, a solvent, and a conductivity imparting material, and an electrode active material layer; A layer b formed of a current collector and a coating liquid using a polymer containing a polysaccharide, a polymer having a blocked isocyanate structure, a solvent, and an electrode active material. Further, layer a is equivalent to the undercoat layer of the prior art, and layer b is equivalent to the electrode active material layer of the prior art. The layer a or layer b may be formed by a method of applying the coating liquid of the present invention to a current collector to dry it. The coating method or the drying method of the coating liquid is not particularly limited, and a conventional coating method or drying used in the production of an undercoat layer or an electrode active material layer such as a lithium ion battery or an electric double layer capacitor can be directly used. method. The coating method may, for example, be a die coating method, a bar coating method, a dipping method, a printing method or the like. In the above, from the viewpoint of easy control of the thickness of the coating film, bar coating, gravure coating, reverse gravure coating, roll coating, Meyer bar coating, knife coating, blade coating, floating knife Coating, dot (c 〇 mma) coating, slit die coating, swash plate die coating, and dip coating are preferred. Further, in order to adjust the coating amount of -21 - 201137906, the concentration of the coating liquid can be adjusted by the above solvent. The coating can be carried out in one part of the current collector or in one or both sides. When applied to both sides, the coating operation can be performed at the same time on a single-sided cloth or on both sides. Drying can be carried out under the atmosphere, under inert gas, or under vacuum, and it is preferable to carry out in the atmosphere due to low cost. The drying temperature varies depending on the coating or heating method, etc., but is 100 to 400. (: is better. Drying low', the hardening of the coating liquid is likely to be insufficient, the drying temperature is too high, and the current collector is annealed. The drying time is too short for 10 seconds to 10 minutes. The hardening tends to be insufficient. When drying, the productivity is lowered and the cost is high. The current collector is not limited to a lithium ion battery or an electric double layer capacitor, and the current collector is not only open. The foil or the crucible includes a foil which is perforated with a punched metal foil, etc. The current collector is made of a conductive material, and may be, for example, a conductive metal or a conductive resin, which may be made of aluminum. A preferred example is aluminum foil, which is generally made of pure A1085 material, A3003 material, etc. Copper foil can generally be rolled copper copper foil. The current collector can be smooth surface, but the surface is rough by electrical or chemical treatment. The thickness of the collector is not particularly limited, but it is generally 5 μπί - thick. When the thickness is less than 5 μηι, the strength is insufficient and the foil is broken after coating. On the other hand, if the thickness exceeds 1〇〇μηι, or It is easy to produce when the temperature of the cloth is too high. If the dry space is too long, it can be either mesh or no special. The foil or electric etching of the special aluminum ^ 1 0 0 μιη cloth step specific body-22- 201137906 The proportion of the current collectors in the product is increased, and the capacity is reduced. In the lithium ion battery, the aluminum is used for the positive electrode and the copper is used for the negative electrode. In the electric double layer capacitor, the positive electrode and the negative electrode are used. Aluminum is used mostly. Aluminum collectors are preferably aluminum foil, aluminum etched foil or aluminum punched foil. Copper collectors are preferably copper foil, copper etched foil or copper punched foil. The coating liquid containing a polysaccharide, a polymer having a blocked isocyanate structure, a solvent, and a conductivity imparting material is formed. The layer b is a coating using a polysaccharide-containing polymer having a blocked isocyanate structure, a solvent, and an electrode active material. An electrode active material layer is usually formed on the layer a. In the electrode of the present invention, the electrode active material layer formed on the layer a may be a polymer having a structure containing a polysaccharide and having a blocked isocyanate structure. The layer b formed of the solvent and the coating liquid of the electrode active material, or a conventional electrode active material layer other than the above. The thickness of the layer a is preferably Ο.ΟΙμηη or more and 50 μπι or less, more preferably 0.1 μ or more ΙΟμιη. When the thickness is too small, there is a tendency that the desired effect cannot be obtained due to internal resistance or reduction in total resistance. On the other hand, even if the thickness is too thick, the resistance or the total resistance does not become smaller than the specific thickness. The thickness of the electrode active material layer or layer b is preferably ΙΟμηη or more and 500 μm or less. The thickness of the electrode active material layer or layer b in the lithium ion battery is preferably Ο.ίμιη or more and 500 μπι or less. In 〇. 1 μη \Below, there is a tendency to become unable to obtain the desired effect. When it is 500 ηηι or more, it becomes easy to collect from the current -23-201137906. Further, the layer a or the layer b formed by the coating liquid of the present invention is peeled off from the current collector and used as a film. The membrane has high ion permeability or ion mobility. The electrochemical device of the present invention has the electrode of the present invention described above, and further preferably has a spacer and an electrolyte. The electrode in the electrochemical device of the present invention may be an electrode of the present invention, or one of the electrodes of the present invention, and the other is a conventional electrode. The separator and the electrolytic solution are used for a battery such as a lithium ion battery, an electric double layer capacitor, a hybrid electric capacitor, or the like, and are not particularly limited. The electrochemical component of the present invention can be used in a power supply system. The power system is suitable for automobiles, railways, ships, airplanes and other conveyors; mobile phones 'personal terminals, portable electronic computers and other portable machines; transaction machines; solar power generation systems, wind power generation systems, fuel cell systems and other power generation systems; . [Embodiment] Embodiments Hereinafter, the present invention will be more specifically described by way of examples and comparative examples. Further, the present invention is not limited by the scope of the embodiment. The coating liquid, the film, and the electrode laminate for the electrode of the present invention, the electrode, the electrochemical device, the power supply system, the automobile, the transport device, the portable device, and the power generation system can be appropriately changed and implemented without changing the scope of the object of the present invention. Production Example 1: Polymer (P-1) having a blocked isocyanate structure - 24 - 201137906 Synthesis [Addition of N-methylpyrrolidone in a 4-neck flask equipped with a dropping funnel, a thermometer, a cooling tube, and a stirrer 5.6 丨 g, the four-necked flask was replaced with nitrogen. Warm in an oil bath to 1 〇 〇 t:. 2-( Ο-[ Γ 〔 〔 亚 胺 胺 〕 羧基 羧基 羧基 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 A mixture of 5 5.0 8 g and 8.1 g of dimethyl-2,2-azobis(2-methylpropionate) took 2 hours to drip. After that, continue mixing for 3 minutes. Then, the temperature was raised to 1,200 ° C, and polymerization was carried out for 1 hour. A polymer (P-1) having a blocked isocyanate structure was obtained. The weight average molecular weight of the polymer (P-1) in terms of polystyrene measured by GPC was 6,100. Production Example 2: Synthesis of polymer (P_2) having a blocked isocyanate structure 189.23 g of N-methylpyrrolidone was added to a 4-necked flask equipped with a dropping funnel, a thermometer, a cooling tube, and a stirrer to make a 4-neck flask Replaced with nitrogen. Warm in an oil bath to 100 °C. 2-((3,5-Dimethylpyrazolyl)carboxyamino]ethyl methacrylate ("Karenz MOI-BP": manufactured by Showa Denko Co., Ltd.) 62.82 g, dicyclopentyl methacrylate A mixture of 55.088 and dimethyl-2,2-azobis(2-methylpropionate) 8.258 took 2 hours to drip. After that, continue stirring for 30 minutes. Then, the temperature was raised to 1200 ° C, and polymerization was carried out for 1 hour. A polymer (P-2) having a blocked isocyanate structure was obtained. The polymer (P-2) had a weight average molecular weight of 6,200 in terms of polystyrene measured by GPC. -25-201137906 Production Example 3: Preparation of solutions 1 to 7 According to the formulation shown in Table 1, a polysaccharide and a polymer or a crosslinking agent were added to the solvent to dissolve to obtain solutions 1 to 7. Table 1 Solution 1 2 3 4 5 6 &quot;7 Polysaccharide_min] Mercapylated chitosan 5 ϋέ·Kididine S 5 5 5 mmnmmmm 5 Polymer with closed isocyanate structure [Quality] P— 1 5 5 5 P — 2 5 Polyvinylidene fluoride [mass] 10 10 Solvent [mass] Ν-ΦΪ-2-pyrrolidone 90 90 90 90 90 90 90 Crosslinker [mass A] € benzene 5 &lt;Example 1 &gt; (Production of coating liquid for producing undercoat layer) acetylene black (average particle diameter: 40 nm) as a conductivity imparting material 1 〇 by mass, and 90 parts by mass of a solution 1 using a planetary mixer The mixture was stirred and mixed at a number of revolutions of 60 rpm for 120 minutes. The mixture was diluted with N-methyl-2-pyrrolidone and isopropyl alcohol so that the thickness of the obtained undercoat layer was 5 μm, to obtain a coating liquid for producing a slurry-based undercoat layer. (Production of aluminum foil with undercoat layer) An aluminum foil having a thickness of 30 μm made of alkali-washed Α 1 08 5 material was prepared. The coating liquid for the undercoat layer -26-201137906 was applied by a cast coating method using an applicator having a gap of 1 μm η on the aluminum foil. Thereafter, after heating at 180 ° C for 3 minutes, drying and crosslinking reaction were carried out to obtain an aluminum case with an undercoat layer (pH evaluation of the undercoat layer). The aluminum foil provided with the undercoat layer was immersed in pure water and sealed. The pH was measured after 24 hours. The amount of water was 0.02 ml with respect to the coated area of 1 cm 2 . The results are shown in Table 2. (As an evaluation of a lithium ion battery) 95 parts by mass of lithium cobaltate as a positive electrode active material, 2 parts by mass of polyvinylidene fluoride as a binder, and acetylene black (average particle diameter: 40 nm) as a conductivity imparting material To 3 parts by mass, N-methyl-2-pyrrolidone as a solvent was added to prepare a positive electrode paste. Further, N-methyl-2-pyrrolidone was added so that the thickness of the electrode active material layer became 200 μm. The positive electrode paste was applied onto an aluminum foil having an undercoat layer, and an electrode active material layer having a thickness of 200 μm was formed on the undercoat layer to obtain a positive electrode for a lithium ion secondary battery. As a solvent, 92 parts by mass of graphite as a negative electrode active material, 3 parts by mass of polyvinylidene fluoride as a binder, and 5 parts by mass of acetylene black (average particle diameter: 40 nm) as a conductivity imparting material are added as a solvent. -Methyl-2-pyrrolidone to produce a negative electrode paste. Further, N-methyl-2-pyrrolidone is obtained by adding the thickness of the electrode active material layer to 250 μm. • 27-201137906. The negative electrode paste was applied onto an electrolytic copper foil having a thickness of 9 μm and dried to form an electrode active material layer having a thickness of 250 μm to obtain a negative electrode for a lithium ion secondary battery. A spacer made of porous polyethylene was placed between the positive electrode and the negative electrode obtained above, and the lithium ion battery was combined after the organic electrolyte solution was impregnated. The organic electrolytic solution used was a mixed solution of a solvent ratio of ethylene carbonate to diethyl carbonate of 1/1, a liquid electrolyte of LiPF6, and a concentration of 1 mol/liter of a product of LIPASTER-EDMC/PF1 manufactured by Toyama Pharmaceutical Industries Co., Ltd. The initial capacity retention ratio and internal resistance of the lithium ion battery were measured. Their results are shown in Table 2. In addition, the initial capacity retention rate was measured using a battery charging and discharging device HJ-2010 manufactured by Hokuto Electric Co., Ltd., and the capacity was measured at a current rate of 20 C and 1 〇〇 after the cycle. The ratio of capacity is expressed as a percentage. The internal resistance was measured using a HIOKI 3 5 5 1 battery test using the AC full resistance method at a measurement frequency of 1 kHz. Further, the aluminum foil provided with the undercoat layer obtained above was stored in an environment of a temperature of 60 t and a relative humidity of 90% for 1 hour. A clock ion battery is manufactured by the above method using an aluminum mold stored in the environment. The internal resistance of the lithium ion battery was measured. The results are shown in Table 2. (As evaluation of electric double layer capacitor) -28- 201137906 85 parts by mass of activated carbon (alkali activated carbon with a specific surface area of 1 500 m/g) as an electrode active material, and the quality of polyvinylidene fluoride as a binder An electrode paste was prepared by adding N-methyl-2-pyrrolidone as a solvent to 5 parts by mass of acetylene black (average particle diameter: 40 nm) as a conductivity imparting material. Further, N-methyl-2-pyrrolidone was added so that the thickness of the electrode active material layer was 200 μm. The electrode paste was applied onto the obtained aluminum foil having an undercoat layer and dried, and an electrode active material layer having a thickness of 200 μm was formed on the undercoat layer to obtain an electrode for an electric double layer capacitor. Next, the electrode for the electric double layer capacitor was fitted with the size of the capacitor container for evaluation, and two pieces were perforated with a diameter of 20 mm φ. Two sheets of electrodes were placed between the separators which were not woven with the glass, and were placed in an evaluation capacitor container, an organic electrolyte solution was poured into the container, an electrode or the like was immersed, and finally, an electric double layer capacitor for evaluation was prepared after the container was capped. The organic electrolyte solution was a product of LIPASTE-P/EAFIN manufactured by Toyama Pharmaceutical Industries Co., Ltd., a solvent of propylene carbonate and an electrolyte of (C2H5)4NBF4 and a concentration of 1 mol/liter. The full resistance and capacitance of the electric double layer capacitor were measured. The results are shown in Table 3. Further, the measurement of the total resistance was carried out under the conditions of 1 k Η Z using a full resistance measuring instrument (p AN 1 1 0 - 5 A Μ) manufactured by KIKUSUI. For the measurement of the capacitance, a charge and discharge tester (HJ-101SM6) manufactured by Hokuto Denko Co., Ltd. was used to charge and discharge at 0 to 2.5 V at a current density of i.59 mA/cm2, which was calculated from the discharge curve measured at the second constant current discharge. Electricity-29- 201137906

The capacitance of the unit cell of the double-layer capacitor (F/cell). The capacity retention ratio (%) was calculated by the calculation formula of (capacitance of the 50th cycle) / (capacitance of the 2nd cycle) xlOO. The aluminum foil provided with the undercoat layer obtained above was stored in an environment at a temperature of 60 ° C and a relative humidity of 90% for 1 hour. An electric double layer capacitor was produced in the same manner as described above using an aluminum foil stored in this environment. The full resistance of the electric double layer capacitor was measured. The results are shown in Table 3. &lt;Examples 2 to 4&gt; A coating liquid for producing an undercoat layer was prepared in the same manner as in Example 1 except that the solution 2, the solution 3, and the solution 4 were used, respectively, to obtain an aluminum foil having an undercoat layer. . Next, the pH of the undercoat layer, the characteristics of the lithium ion battery and the electric double layer capacitor were measured in the same manner as in Example 1. The results are shown in Table 2 and Table 3. &lt;Comparative Example 1 &gt; An aluminum foil provided with an undercoat layer was obtained by preparing a coating liquid for producing an undercoat layer in the same manner as in Example 1 except that the solution 5 was used. Next, the pH of the undercoat layer, the characteristics of the lithium ion battery and the electric double layer capacitor were measured in the same manner as in Example 1. The results are shown in Table 2 and Table 3. &lt;Comparative Examples 2 and 3&gt; A coating liquid for producing an undercoat layer was prepared in the same manner as in Example 1 except that the solution 6 and the solution 7 were used, respectively, to obtain a primer layer of -30-201137906. Aluminum foil. Next, the pH of the undercoat layer, the characteristics of the lithium ion battery and the electric double layer capacitor were measured in the same manner as in Example 1. The results are shown in Table 2 and Table 3. Table 2 pH of undercoat layer Initial capacity retention of lithium ion battery Internal resistance CmQ] Internal resistance (60 °C 90% storage) [m Ω] Example 1 6.6 84 6 7 Example 2 6.7 83 6 6 Example 3 6.4 82 7 7 Example 4 6.9 83 6 7 Comparative Example 1 2.8 64 7 26 Comparative Example 2 6.4 30 15 16 Comparative Example 3 6.7 20 25 27 Table 3 Electric Double Layer Capacitor Full Resistance Full Resistance (60°090% Storage) Capacitance_Mass] Capacitance retention rate [%] Example 1 1.54 1.57 1.77 81 Example 2 1.57 1.55 1.77 79 Example 3 1.55 1.59 1.76 84 Example 4 1.52 1.55 1.75 84 Comparative Example 1 1.56 19.7 1.76 54 Comparative Example 2 17.0 17.5 1.65 60 Comparative Example 3 15.2 15.2 1.62 57 &lt;Example 5 &gt; (Production of copper foil provided with undercoat layer) The same procedure as in Example 1 was carried out except that the aluminum foil having a thickness of 9 μm was used instead of the aluminum foil. Copper case with undercoat. -31 - 201137906 (pH evaluation of undercoat layer) The pH evaluation of the obtained copper foil having an undercoat layer was carried out in the same manner as in Example 1. The results are shown in Table 4. (As evaluation of lithium ion battery) 92 parts by mass of graphite as a negative electrode active material, 3 parts by mass of polyvinylidene fluoride as a binder, and acetylene black (average particle diameter: 40 nm) as a conductivity imparting material 5 mass To the mixture, N-methyl-2-pyrrolidone as a solvent was added to prepare a negative electrode paste. Further, N-methyl-2-pyrrolidone was added so that the thickness of the electrode active material layer was 25 μm. The negative electrode paste was applied onto the copper foil having the undercoat layer obtained above, and dried to form a negative electrode active material layer having a thickness of 250 μm on the undercoat layer to obtain a negative electrode for a lithium ion secondary battery. 95 parts by mass of lithium cobaltate as a positive electrode active material, 2 parts by mass of polyvinylidene fluoride as a binder, and 3 parts by mass of acetylene black (average particle diameter: 40 nm) as a conductivity imparting material are added as a solvent. N-methyl-2-pyrrolidone to produce a positive electrode paste. Further, N-methyl-2-pyrrolidone was added so that the thickness of the electrode active material layer became 200 μm. The positive electrode paste is coated on an aluminum foil having a thickness of 30 μm of the alkali-washed A 1 0 8 5 material, and dried to form a positive electrode active material layer having a thickness of 200 μm, thereby obtaining a lithium ion battery. Use a positive electrode. A spacer made of a porous polyethylene-32-201137906 olefin was placed between the positive electrode and the negative electrode obtained above, and the lithium ion battery was combined after the organic electrolyte solution was impregnated. For the organic electrolyte, the solvent is a mixture of ethylene carbonate and diethyl carbonate in a capacity ratio of 1/1, the electrolyte is LiPF6, and the concentration is 1 mol/liter. The trade name LIPASTER-EDMC/PF1 manufactured by Toyama Pharmaceutical Co., Ltd. The initial capacity retention ratio and internal resistance of the lithium ion battery were measured in the same manner as in Example 1. The measurement results are shown in Table 4. Further, the copper foil having the undercoat layer obtained as described above was stored in an environment of a temperature of 60 〇 c and a relative humidity of 90% for 1 hour. A lithium ion battery was fabricated in the same manner as described above using a copper foil stored in the environment. The internal resistance of the lithium ion battery was measured. The measurement results are shown in Table 4. &lt;Examples 6 to 8 &gt; A copper foil provided with an undercoat layer was obtained in the same manner as in Example 5 except that the solution 2, the solution 3 and the solution 4 were used in each of the substitution solutions 1'. Next, the pH of the undercoat layer and the characteristics of the lithium ion battery were measured in the same manner as in Example 5. The results are shown in Table 4. &lt;Comparative Example 4 &gt; In addition to the substitution solution 1, a copper alloy having an undercoat layer was obtained by a solution method. The method 'determines the pH of the undercoat layer and the lithium ion is shown. Other than the fifth embodiment, the characteristics of the same hand battery as in the fifth embodiment were obtained in the same manner as in the fifth embodiment. The results are shown in Table 4 - 33 - 201137906 &lt;Comparative Examples 5 and 6 &gt; A copper foil provided with an undercoat layer was obtained in the same manner as in Example 5 except that the solution 6 and the solution 7 were used instead of the substitution solution 1. Next, the pH of the undercoat layer and the characteristics of the lithium ion battery were measured in the same manner as in Example 5. The results are shown in Table 4. pH of undercoat layer Initial capacity retention of lithium ion battery Internal resistance [mQ] Internal resistance (60 °C 90% storage) [mQ] Example 5 6.5 84 7 8 Example 6 6.5 84 7 7 Example 7 6.6 81 6 7 Example 8 6.7 83 7 7 Comparative Example 4 2.5 58 9 39 Comparative Example 5 6.5 32 18 18 Comparative Example 6 6.4 26 25 26 &lt;Example 9 &gt; (Application of electrode active material layer for electric double layer capacitor Production of cloth liquid) 85 parts by mass of activated carbon (base activated carbon having a specific surface area of 1 500 m 2 /g) as an electrode active material, and acetylene black (average particle diameter 40 nm) as a conductivity imparting material 5 mass Parts and 150 parts by mass of the solution were stirred and mixed using a planetary mixer at a number of revolutions of 60 rpm for 120 minutes. The mixture was diluted with Ν-methyl-2-pyrrolidone and isopropyl alcohol so as to have a thickness of the electrode active material layer of 200 μm to obtain a coating liquid for producing an electrode active material layer. -34- 201137906 (Manufacturing of Electrode) An aluminum foil having a thickness of 30 μm was formed from an alkali-washed A 1 08 5 material. The coating liquid for producing an electrode active material layer was applied by a cast coating method on an aluminum foil using an applicator having a gap of 205 μm. Thereafter, the mixture was heated at 80 ° C for 3 minutes to carry out drying and crosslinking reaction to obtain an electrode. (pH evaluation of electrode active material layer) The pH evaluation of the electrode active material layer obtained above was carried out in the same manner as in the pH evaluation of the undercoat layer in Example 1. The results are shown in Table 5. (Evaluation as electric double layer capacitor) The electrode obtained above was fitted with a capacitor container for evaluation, and two pieces were perforated with a diameter of 20 mm φ. A spacer made of a glass non-woven fabric was sandwiched between the two electrodes. The two capacitors were placed in the evaluation capacitor container, and the organic electrolyte solution was injected into the container to immerse the electrode or the like. Finally, the container was capped, and an electric double layer capacitor for evaluation was prepared. In the organic electrolyte, the solvent was propylene carbonate, and the electrolyte was (trade name: LIPASTE-P/EAFIN, manufactured by Toyama Pharmaceutical Co., Ltd., CzHshNBF4, concentration: 1 mol/liter). The obtained electric double was measured in the same manner as in Example 1. The total resistance and capacitance of the layer capacitor are shown in Table 5. The electrode obtained above was stored in an environment of temperature 6 (TC, relative humidity of 90% for 100 hours. The electrode stored in the environment was used to produce electricity in the same manner as described above. Double-layer capacitor. The total resistance of the electric double layer capacitor was measured. -35-201137906 The results are shown in Table 5. &lt;Examples 10 to 12&gt; except for the substitution solution 1 ' using solution 2, solution 3 and solution 4, respectively. The electrode was obtained in the same manner as in Example 9. The pH of the electrode active material layer and the characteristics of the electric double layer capacitor were measured in the same manner as in Example 9. The results are shown in Fig. 5. <Comparative Example 7 &gt; The electrode was obtained in the same manner as in Example 9 except for the use of the solution 5. The characteristics of the pH and the electric double layer capacitor of the layer were measured in the same manner as in Example 9. The results are shown as the electrode active material 5. &lt;Comparative Examples 8 and 9&gt; The electrodes were obtained in the same manner as in the Example except that the solution 6 and the solution 7 were used, and the pH and electricity of the electrode active material layer were measured in the same manner as in Example 9. The characteristics of the double-recene and P-enrichment combiner are shown in Table 5. * 36 - 201137906 Table 5 pH of the electrode layer Electric double-layer capacitor Full resistance full resistance (60. 90〇/6 storage) Capacitance [F unit] Capacitance maintenance rate [%] Example 9 6.5 2.21 2.20 1.65 81 Example 10 6.7 2.25 2.29 1.65 80 Example 11 6.4 2.20 2.25 1.67 80 Example 12 6.7 2.30 2.23 1.69 80 Comparative Example 7 2.2 2.30 36.7 1.66 56 Comparative Example 8 6.6 24.1 24.2 1.52 68 Comparative Example 9 6.6 29.1 29.4 1.43 65 &lt;Example 1 3 &gt; (Production of coating liquid for producing a positive electrode of a lithium ion battery) Cobalt acid as a positive electrode active material 95 parts by mass of lithium, 5 parts by mass of acetylene black (average particle diameter: 40 nm) as a conductivity imparting material, and 40 parts by mass of a solution were stirred and mixed for 1 to 20 minutes at a number of revolutions of 60 rpm using a planetary mixer to obtain a positive electrode active material. Layer thickness The mixture is diluted with N-methyl-2-pyrrolidone and isopropyl alcohol in a manner of 200 μm to obtain a coating liquid for the production of a positive electrode for a lithium ion battery (manufactured by a positive electrode). The alkali-washed A 1 0 8 5 material constitutes an aluminum foil having a thickness of 30 μm. The coating liquid for producing a positive electrode was applied by a cast coating method on an aluminum foil using an applicator having a gap of 250 μm. Thereafter, the mixture was heated at 1 800 t for 3 minutes, and then subjected to drying and crosslinking reaction to obtain a positive electrode. -37-201137906 (Production of Coating Liquid for Manufacturing Negative Electrode of Lithium Ion Battery) 92 parts by mass of graphite as a negative electrode active material, acetylene black (average particle diameter: 40 nm) as a conductivity imparting material, 5 parts by mass, and 50 parts by mass of the solution was stirred and mixed using a planetary mixer at a number of revolutions of 60 rpm for 1 to 20 minutes. The mixture was diluted with N-methyl-2-pyrrolidone and isopropyl alcohol so as to have a thickness of the negative electrode active material layer of 250 μm to obtain a coating liquid for producing a negative electrode for a lithium ion battery. (Manufacturing of Negative Electrode) A coating liquid for producing a negative electrode was applied by a cast coating method on an electrolytic copper foil having a thickness of 9 μm using an applicator having a gap of 300 μm. Thereafter, the mixture was heated at 1,800 ° C for 3 minutes, and then subjected to drying and crosslinking reaction to obtain a negative electrode. (Evaluation of pH of Positive Electrode Active Material Layer and Negative Electrode Active Material Layer) The pH evaluation of the obtained positive electrode active material layer and negative electrode active material layer was carried out in the same manner as in the pH evaluation of the undercoat layer in Example 1. The results are shown in Table 6. (Evaluation of Lithium Ion Battery) A spacer made of porous polyethylene was placed between the positive electrode and the negative electrode obtained above, and the lithium ion battery was combined after the organic electrolyte solution was impregnated. -38-201137906 The initial amount maintenance ratio and internal resistance of the lithium ion battery were measured in the same manner as in the first embodiment. The measurement results are shown in Table 6. Further, the positive electrode and the negative electrode obtained above were stored in an environment of a temperature of 6 ° C and a humidity of 90% for 100 hours. A lithium ion battery is manufactured in the same manner as described above by using the pole and the negative electrode stored in the environment. The internal resistance of the subcell was measured. The measurement results are shown in Table 6. &lt;Example 1 4 to 1 6 &gt; A positive electrode and a negative electrode were obtained in the same manner as in Example 13 except that the solution 2, the solution 3 and the solution were used in each of the substitution solution 1'. Example 1 3 Same method' The pH of the positive electrode active material layer and the negative electrode material layer and the characteristics of the lithium ion battery were measured. The results are as shown in Table 6. &lt;Comparative Example 10 &gt; The positive electrode and the negative electrode were obtained in the same manner as in Example I except that the solution 5 was used instead of the solution 1'. The pH of the positive electrode active material negative electrode active material layer and the characteristics of the lithium ion battery were measured in the same manner as in Example 13. Result 6 shows. &lt;Comparative Example 1 1 and 1 2 &gt; A positive electrode and a negative electrode were obtained in the same manner as in Example 13 except that the solution 6 and the solution 7 were used instead of the substitution solution 1. In the same manner as in the implementation of i, the positive electrode active material layer and the negative electrode active material capacitance are measured with respect to the positively charged lithium ion 4 to be in contact with the extremely active three-phase layer and the surface of the η η layer -39-201137906 ρ Η, lithium The characteristics of the ion battery. The results are shown in Table 6. Table 6 pH of the positive electrode layer pH of the negative layer Lithium ion battery initial capacity retention rate Internal resistance [m Ω] Internal resistance (60 ° C 90% storage) [mQ] Example 13 6.7 6.8 79 7 8 Example 14 6.6 6.5 78 6 7 Example 15 6.9 6.7 82 7 7 Example 16 6.6 6.7 80 6 7 Comparative Example 10 2.1 2.2 58 6 57 Comparative Example 11 6.5 6.5 24 18 17 Comparative Example 12 6.4 6.4 21 29 28 From the above results, It was found that the pH of the undercoat layer or the electrode active material layer obtained from the coating liquid containing hydroxyalkyl chitosan and the organic acid (Comparative Example) was low, and the characteristics of the lithium ion battery or the electric double layer capacitor obtained in the comparative example were insufficient. In this case, it is known that the coating liquid containing the polysaccharide, the polymer having a blocked isocyanate structure, the solvent, the conductivity imparting material, and/or the electrode active material produced by the present invention forms an undercoat layer or an electrode active. The material layer, the undercoat layer or the electrode active material layer p Η was in the vicinity of 7, and the characteristics of the lithium ion battery or the electric double layer capacitor manufactured by the present invention were better than those of the comparative example. -40 -

Claims (1)

201137906 VII. Patent application scope: 1. A coating liquid characterized by containing a polysaccharide, a polymer having a blocked isocyanate structure, a solvent, a conductivity imparting material, and/or an electrode active material. 2. The coating liquid according to the item 1, wherein the polymer having a closed cation cyanate structure contains a single sheet derived from a blocked isocyanate structure and at least one polymerizable unsaturated group. The polymer of the repeating unit of the body. 3. The coating liquid according to claim 2, wherein the monomer having a blocked isocyanate structure and at least one polymerizable unsaturated group is a formula (i) R1 is a hydrogen atom or a methyl group) or formula (2) A compound represented by (R2 is a hydrogen atom or a methyl group). 4. The coating liquid according to any one of claims 1 to 3, wherein the polysaccharide is modified by chitosan, hydroxyalkyl chitosan, carboxyalkyl chitosan, caprolactone At least one selected from the group consisting of chitosan, hydroxyalkyl cellulose, and carboxyalkyl cellulose. 5. The coating liquid according to any one of claims 1 to 3, wherein the amount of the polymer having a blocked isocyanate structure is from 20 to 300 parts by mass based on 100 parts by mass of the polysaccharide. The film is formed by using the coating liquid described in any one of claims 1 to 3. A laminate for an electrode comprising a current collector and a layer a formed using a coating liquid containing a polysaccharide, a polymer having a blocked isocyanate structure, a solvent, and a conductivity imparting material. The electrode is characterized in that it has a current collector, a layer a formed of a coating liquid containing a polysaccharide, a polymer having a blocked isocyanate structure, a solvent, and a conductive material, and an electrode active material layer. An electrode comprising a current collector and a layer b formed using a coating liquid containing a polysaccharide, a polymer having a blocked isocyanate structure, a solvent, and an electrode active material. An electrochemical element characterized by having the electrode of claim 8 or 9. 1 1. A power supply system characterized by having an electrochemical component as recited in claim 1. 12. A vehicle is characterized by having an electrochemical component as recited in the claim. 13. A conveyor apparatus characterized by the electrochemistry element of claim 1 . 14. A portable machine characterized by an electrochemical component as recited in claim 1 . 1 5. A kind of power generation system, characterized by a request item.. ^ _ only 1 υ gci-loaded electricity -42- 201137906 chemical components 201137906 four designated representative map: (a) The representative representative of the case is: no. (II) Simple description of the symbol of the representative figure: None 201137906 V If there is a chemical formula in this case, please disclose the chemical formula that best shows the characteristics of the invention: none