[go: up one dir, main page]

WO2013129376A1 - Matériau actif pour cellule secondaire à électrolyte non aqueux, électrode pour cellule secondaire à électrolyte non aqueux, cellule secondaire à électrolyte non aqueux et procédé de production de matériau actif pour cellule secondaire à électrolyte non aqueux - Google Patents

Matériau actif pour cellule secondaire à électrolyte non aqueux, électrode pour cellule secondaire à électrolyte non aqueux, cellule secondaire à électrolyte non aqueux et procédé de production de matériau actif pour cellule secondaire à électrolyte non aqueux Download PDF

Info

Publication number
WO2013129376A1
WO2013129376A1 PCT/JP2013/054899 JP2013054899W WO2013129376A1 WO 2013129376 A1 WO2013129376 A1 WO 2013129376A1 JP 2013054899 W JP2013054899 W JP 2013054899W WO 2013129376 A1 WO2013129376 A1 WO 2013129376A1
Authority
WO
WIPO (PCT)
Prior art keywords
transition metal
nitride
electrolyte secondary
active material
lithium
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2013/054899
Other languages
English (en)
Japanese (ja)
Inventor
正信 竹内
柳田　勝功
喜田　佳典
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Publication of WO2013129376A1 publication Critical patent/WO2013129376A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
    • H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/362—Composites
    • H01M4/366—Composites as layered products
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
    • H01M4/505—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention relates to a non-aqueous electrolyte secondary battery active material, a non-aqueous electrolyte secondary battery electrode, a non-aqueous electrolyte secondary battery, and a method for producing a non-aqueous electrolyte secondary battery active material.
  • Patent Document 1 proposes to use a composite material of nitride, carbide, boride, silicide, etc., and graphite as a conductive agent for the positive electrode active material in order to obtain high output characteristics.
  • the main object of the present invention is to provide a non-aqueous electrolyte secondary battery active material capable of realizing a non-aqueous electrolyte secondary battery having high output characteristics.
  • the active material for a non-aqueous electrolyte secondary battery according to the present invention is obtained by sintering a transition metal nitride on the surface of lithium-containing transition metal composite oxide particles.
  • the electrode for a nonaqueous electrolyte secondary battery according to the present invention includes a current collector and an active material layer.
  • the active material layer is disposed on at least one surface of the current collector.
  • the active material layer includes the active material for a non-aqueous electrolyte secondary battery according to the present invention.
  • the non-aqueous electrolyte secondary battery according to the present invention includes the non-aqueous electrolyte secondary battery electrode according to the present invention.
  • a transition metal nitride is sintered on the surface of the lithium-containing transition metal composite oxide particles to obtain a non-aqueous electrolyte secondary battery active material.
  • nonaqueous electrolyte secondary battery active material capable of realizing a nonaqueous electrolyte secondary battery having high output characteristics.
  • FIG. 1 is a schematic cross-sectional view of a nonaqueous electrolyte secondary battery according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of the three-electrode test cells A to D.
  • FIG. 3 is a schematic diagram of a positive electrode active material.
  • the nonaqueous electrolyte secondary battery 1 includes a battery container 17.
  • the battery case 17 is a cylindrical shape.
  • the shape of the battery container is not limited to a cylindrical shape.
  • the shape of the battery container may be, for example, a flat shape.
  • an electrode body 10 impregnated with a nonaqueous electrolyte is accommodated.
  • non-aqueous electrolyte a known non-aqueous electrolyte containing a solute and a solvent can be used.
  • the non-aqueous electrolyte solvent include cyclic carbonates, chain carbonates, mixed solvents of cyclic carbonates and chain carbonates, and the like.
  • Specific examples of the cyclic carbonate include ethylene carbonate, propylene carbonate, butylene carbonate, vinylene carbonate and the like.
  • chain carbonate include dimethyl carbonate, methyl ethyl carbonate, diethyl carbonate and the like.
  • a mixed solvent of a chain carbonate and a cyclic carbonate is preferably used as a non-aqueous solvent having a low viscosity and a low melting point and a high lithium ion conductivity.
  • the mixing ratio of cyclic carbonate to chain carbonate should be in the range of 2: 8 to 5: 5 by volume ratio. Is preferred.
  • An ionic liquid can also be used as the nonaqueous solvent for the nonaqueous electrolyte.
  • the cation species and anion species of the ionic liquid are not particularly limited. From the viewpoint of low viscosity, electrochemical stability, and hydrophobicity, for example, a pyridinium cation, an imidazolium cation, or a quaternary ammonium cation is preferably used as the cation.
  • an ionic liquid containing a fluorine-containing imide anion is preferably used as the anion.
  • a known lithium salt can be used as the solute of the non-aqueous electrolyte.
  • the lithium salt preferably used as the solute of the nonaqueous electrolyte include a lithium salt containing at least one element selected from the group consisting of P, B, F, O, S, N, and Cl.
  • Specific examples of such lithium salts include LiPF 6 , LiBF 4 , LiCF 3 SO 3 , LiN (CF 3 SO 2 ) 2 , LiN (C 2 F 5 SO 2 ) 2 , LiN (CF 3 SO 2 ) ( C 4 F 9 SO 2 ), LiC (C 2 F 5 SO 2 ) 3 , LiAsF 6 , LiClO 4 and the like.
  • LiPF 6 is more preferably used as the solute of the non-aqueous electrolyte.
  • the non-aqueous electrolyte may contain one type of solute or may contain a plurality of types of solutes.
  • the electrode body 10 is formed by winding a negative electrode 11, a positive electrode 12, and a separator 13 disposed between the negative electrode 11 and the positive electrode 12.
  • the separator 13 is not particularly limited as long as it can suppress a short circuit due to contact between the positive electrode 12 and the negative electrode 11 and can impregnate a nonaqueous electrolyte to obtain lithium ion conductivity.
  • Separator 13 can be constituted by a porous film made of resin, for example.
  • the resin porous membrane include a polypropylene porous membrane and a polyethylene porous membrane, and a laminate of a polypropylene porous membrane and a polyethylene porous membrane.
  • the negative electrode 11 has a negative electrode current collector and a negative electrode active material layer disposed on at least one surface of the negative electrode current collector.
  • the negative electrode current collector can be composed of, for example, a foil made of a metal such as Cu or an alloy containing a metal such as Cu.
  • the negative electrode active material layer may contain a binder or a conductive agent in addition to the negative electrode active material.
  • the negative electrode active material is not particularly limited as long as it can reversibly occlude and release lithium.
  • Examples of the negative electrode active material include a carbon material, a material alloyed with lithium, and a metal oxide such as tin oxide.
  • Examples of the material to be alloyed with lithium include one or more metals selected from the group consisting of silicon, germanium, tin, and aluminum, and one type selected from the group consisting of silicon, germanium, tin, and aluminum. Examples include alloys containing the above metals.
  • the carbon material examples include natural graphite, artificial graphite, mesophase pitch-based carbon fiber (MCF), mesocarbon microbeads (MCMB), coke, and hard carbon. From the viewpoint of improving the high rate charge / discharge characteristics, it is preferable to use a carbon material obtained by coating a graphite material with low crystalline carbon as the negative electrode active material.
  • the positive electrode 12 includes a positive electrode current collector and a positive electrode active material layer disposed on at least one surface of the positive electrode current collector.
  • the positive electrode current collector can be made of, for example, a metal such as Al or an alloy containing a metal such as Al.
  • the positive electrode active material layer includes a positive electrode active material 18 (see FIG. 3).
  • the positive electrode active material layer may contain a binder, a conductive agent, and the like.
  • the binder include polyvinylidene fluoride.
  • the conductive agent include carbon materials such as graphite.
  • the nonaqueous electrolyte secondary battery 1 has excellent output characteristics.
  • the reason can be considered as follows.
  • the transition metal nitride 18b is sintered on the surface of the lithium-containing transition metal composite oxide particle 18a. For this reason, it is considered that the state in which the lithium-containing transition metal composite oxide particles 18a and the transition metal nitride 18b are in contact can be maintained even during charge and discharge in which the positive electrode active material 18 expands and contracts. Therefore, it is considered that the transition metal nitride 18b can function properly during charge / discharge, and the nonaqueous electrolyte secondary battery 1 exhibits excellent output characteristics.
  • transition metal nitride lacks flexibility, it is difficult to be deformed following the expansion and contraction behavior of lithium-containing transition metal composite oxide particles during charge and discharge. Therefore, by simply mixing the transition metal nitride and the lithium-containing transition metal composite oxide particles, the state in which the lithium-containing transition metal composite oxide particles and the transition metal nitride are in contact with each other is suitably maintained during charging and discharging. It is considered impossible. Therefore, it is considered that the transition metal nitride cannot function suitably at the time of charge / discharge, and excellent output characteristics cannot be imparted to the nonaqueous electrolyte secondary battery.
  • transition metal borides, transition metal carbides, and the like can be given as materials having electronic conductivity.
  • the transition metal nitride 18b can impart excellent output characteristics to the nonaqueous electrolyte secondary battery 1. The reason is considered as follows. When the transition metal boride is sintered, an oxide film is formed on the surface, and the electron conductivity is lowered. As a result, even when transition metal borides are used, it is considered that excellent output characteristics cannot be imparted as much as when transition metal nitrides are used. Note that an oxide film may also be formed on the transition metal nitride 18b during sintering.
  • the oxide film formed on the surface of the transition metal nitride 18b is considered to be very thin.
  • transition metal carbides do not have excellent oxidation resistance. For this reason, the transition metal carbide is oxidatively decomposed during sintering. For these reasons, it is considered that excellent output characteristics cannot be imparted as much as when the transition metal nitride 18b is used.
  • the type of the lithium-containing transition metal composite oxide particle 18a is not particularly limited.
  • the lithium-containing transition metal composite oxide particles 18a that are preferably used are represented by the general formula: LiMeO 2 (wherein Me is at least one selected from the group consisting of Ni, Co, and Mn).
  • a lithium-containing transition metal complex oxide having an olivine structure a general formula: LiMe 2 O 4 (wherein Me is at least one selected from the group consisting of Fe, Ni, Co, and Mn). Examples thereof include a lithium-containing transition metal composite oxide having a spinel structure.
  • Specific examples of the lithium-containing transition metal composite oxide particles 18a include LiCoO 2 , LiNiO 2 , LiNi 0.3 Co 0.3 Mn 0.3 O 2 , LiFePO 4 , LiMn 2 O 4 and
  • the volume change associated with the charge / discharge reaction tends to increase.
  • the technique of sintering the transition metal nitride 18b on the surface of the lithium-containing transition metal composite oxide particle 18a as in the present embodiment is performed when a lithium-containing transition metal composite oxide having a large volume change accompanying a charge / discharge reaction is used. It can be preferably applied. Therefore, a particularly high effect is obtained when b / d is 1.4 or more.
  • the technique of sintering the transition metal nitride 18b on the surface of the lithium-containing transition metal composite oxide particle 18a as in the present embodiment is a lithium-containing transition metal composite oxidation having a low Mn content and low electronic conductivity. It is preferably applicable when using a product. Therefore, c is preferably 0.45 or less.
  • the lithium-containing transition metal composite oxide particle 18a is at least one selected from the group consisting of aluminum, titanium, chromium, vanadium, iron, copper, zinc, niobium, molybdenum, zirconium, tin, tungsten, sodium, and potassium. Further seeds may be included.
  • transition metal nitride 18b examples include zirconium nitride such as ZrN, titanium nitride such as TiN, niobium nitride such as NbN, tantalum nitride such as TaN, chromium nitride such as Cr 2 N, and vanadium nitride such as VN. Etc. As the transition metal nitride 18b, one of these may be used, or a plurality of types may be mixed and used.
  • the content of the transition metal nitride 18b in the positive electrode active material 18 is preferably 0.1 mol% or more, and more preferably 0.5 mol% or more.
  • the content of the transition metal nitride 18b in the positive electrode active material 18 is preferably 5 mol% or less, and more preferably 2 mol% or less. If the content of the transition metal nitride 18b in the positive electrode active material 18 is too low, the effect of improving the output characteristics may be too small. On the other hand, if the content of the transition metal nitride 18b is too high, the proportion of the lithium-containing transition metal composite oxide particles 18a in the positive electrode active material 18 becomes too high, and the energy density of the positive electrode 12 may become too low.
  • the transition metal nitride 18b may cover the entire surface of the lithium-containing transition metal composite oxide particle 18a or may cover only a part thereof.
  • the coverage of the transition metal nitride 18b on the surface of the lithium-containing transition metal composite oxide particle 18a may be less than 10%.
  • Me is at least one selected from the group consisting of Ni, Co, and Mn.
  • 18a it is preferable to use at least one of zirconium nitride and titanium nitride as transition metal nitride 18b, and it is more preferable to use titanium nitride.
  • the reason why excellent output characteristics can be obtained when at least one of zirconium nitride and titanium nitride is used is considered as follows.
  • a compound generated due to interdiffusion of elements between the lithium transition metal composite oxide particles 18a and the transition metal nitride 18b functions as a catalyst, and the lithium transition metal composite oxide particles 18a and lithium ions It is considered that the activation energy of the reaction is lowered. Although the reason is not clear, such an effect is considered to be the highest when titanium nitride is used.
  • the active material for a non-aqueous electrolyte secondary battery of this embodiment can be produced by sintering a transition metal nitride on the surface of lithium-containing transition metal composite oxide particles.
  • the positive electrode active material 18 can be manufactured by sintering the transition metal nitride 18b on the surface of the lithium-containing transition metal composite oxide particles 18a.
  • the atmosphere in which the lithium transition metal composite oxide particles 18a and the transition metal nitride 18b are sintered may be, for example, an air atmosphere.
  • the sintering temperature is increased.
  • the sintering temperature is too high, the non-aqueous electrolyte secondary battery 1 may not be provided with excellent output characteristics. This is because the structure of the transition metal nitride 18b is changed by sintering, the conductivity of the transition metal nitride 18b is lowered, and the transition metal oxide contained in the generated transition metal nitride 18b, This is considered to be due to the inhibition of the charge / discharge reaction on the surface of the active material.
  • the lithium transition metal composite oxide particles 18a and the transition metal nitride 18b are sintered at a temperature at which at least a part of the structure of the transition metal nitride 18b before sintering is maintained even after the sintering. preferable.
  • the lithium transition metal composite oxide particles 18a and the transition metal nitride 18b are sintered at a temperature not higher than the oxidative decomposition start temperature of the transition metal nitride 18b.
  • a temperature not higher than the oxidative decomposition start temperature of the transition metal nitride 18b For example, when zirconium nitride is used as the transition metal nitride 18b, it is preferable to sinter at less than 700 ° C.
  • titanium nitride is used as the transition metal nitride 18b, it is preferable to sinter at less than 650 ° C.
  • sintering is preferably performed at less than 650 ° C.
  • sintering is preferably performed at less than 750 ° C.
  • sintering is preferably performed at less than 850 ° C.
  • vanadium nitride is used as the transition metal nitride 18b, sintering is preferably performed at less than 650 ° C.
  • Whether or not the sintered transition metal nitride maintains the crystal structure before sintering can be confirmed using an X-ray diffraction (XRD) method or the like.
  • the transition metal nitride particles used for the sintering are used. It is preferable to appropriately adjust the diameter and sintering time so that at least a part of the structure of the transition metal nitride before sintering is maintained even after sintering.
  • sintering temperature of the lithium transition metal composite oxide particles 18a and the transition metal nitride 18b is too low, the sintering of the lithium transition metal composite oxide particles 18a and the transition metal nitride 18b does not proceed sufficiently, and the transition The metal nitride 18b may not be firmly held on the surface of the lithium transition metal composite oxide particle 18a.
  • sintering temperature is 300 degreeC or more, and it is preferable that it is 500 degreeC or more.
  • the lithium transition metal composite oxide particles 18a and the transition metal nitride 18b are suitably sintered even at a low temperature because lithium contained in the lithium transition metal composite oxide particles 18a functions as a sintering accelerator. This is probably because of this.
  • lithium-containing transition metal composite oxide particles 18a and the transition metal nitride 18b the above-mentioned materials can be used.
  • the lithium transition metal composite oxide particles 18a are usually prepared by mixing a lithium source such as lithium carbonate and lithium hydroxide and a transition metal source such as transition metal hydroxide at a predetermined ratio and at about 800 to 900 ° C. It can be obtained by oxidation baking.
  • a lithium source such as lithium carbonate and lithium hydroxide
  • a transition metal source such as transition metal hydroxide
  • the transition metal nitride 18b is added in this firing step, the transition metal nitride 18b is oxidatively decomposed, and the transition metal nitride 18b diffuses into the lithium-containing transition metal composite oxide particles 18a.
  • the conductivity of the object 18b may be lost. For this reason, in order to sinter the transition metal nitride 18b on the surface of the lithium-containing transition metal composite oxide particles 18a, it is desirable to mix the two and then fire them in the above temperature range.
  • nonaqueous electrolyte secondary battery according to the present invention will be specifically described with reference to examples.
  • the nonaqueous electrolyte secondary battery of the present invention is not limited to the following examples, and can be implemented with appropriate modifications within a range not changing the gist thereof.
  • Li 2 CO 3 and Ni 0.55 Co 0.25 Mn 0.20 (OH) 2 obtained by the coprecipitation method are mixed at a predetermined ratio, and these are fired in the air, thereby forming a layered structure.
  • LiNi 0.55 Co 0.25 Mn 0.20 O 2 particles were prepared. The average particle size of primary particles of this particle was about 1 ⁇ m, and the average particle size of secondary particles was about 10 ⁇ m.
  • LiNi 0.55 Co 0.25 Mn 0.20 O 2 particles and ZrN particles having an average particle diameter of 1 ⁇ m are mixed using a mechanofusion manufactured by Hosokawa Micron Co., so as to have a molar ratio of 99: 1.
  • ZrN particles were adhered to the surface of the LiNi 0.55 Co 0.25 Mn 0.20 O 2 particles.
  • a positive electrode active material, artificial graphite as a conductive agent, and N-methyl-2-pyrrolidone solution in which polyvinylidene fluoride was dissolved as a binder were kneaded to prepare a slurry.
  • the mass ratio of the positive electrode active material, the conductive agent, and the binder was adjusted to be 95: 3: 2.
  • This slurry was applied onto a positive electrode current collector made of an aluminum foil and dried. Next, it rolled with the rolling roller and the positive electrode was completed by attaching the current collection tab of aluminum.
  • a three-electrode test cell 20 (cell A) as shown in FIG. 2 was produced.
  • the positive electrode obtained above was used as the working electrode 21.
  • the negative electrode was used as the counter electrode 22 and the reference electrode 23.
  • Metal lithium was used for the counter electrode 22 and the reference electrode 23, respectively.
  • LiPF 6 is dissolved to a concentration of 1 mol / l in a mixed solvent in which ethylene carbonate, methyl ethyl carbonate, and dimethyl carbonate are mixed at a volume ratio of 3: 3: 4. Further, a solution in which 1% by mass of vinylene carbonate was dissolved was used.
  • Example 2 A positive electrode was produced and cell B was produced in the same manner as in cell A, except that TiN particles having an average particle diameter of 1 ⁇ m were used as the transition metal nitride.
  • Comparative Example 2 In the same manner as in Example 2, using a mechanofusion manufactured by Hosokawa Micron Co., Ltd., LiNi 0.55 Co 0.25 Mn 0.20 O 2 particles and TiN particles having an average particle diameter of 1 ⁇ m had a molar ratio of 99: 1. The TiN particles were adhered to the surface of the LiNi 0.55 Co 0.25 Mn 0.20 O 2 particles. However, in Comparative Example 2, firing of LiNi 0.55 Co 0.25 Mn 0.20 O 2 particles and TiN particles was not performed. Otherwise, a positive electrode was produced in the same manner as in cell A, and cell D was produced.
  • cells A to D were each discharged at a current density of 10.0 A / cm 2 , and the average discharge operation potential at that time was measured as the average discharge operation potential after cycle.
  • Nonaqueous electrolyte secondary battery 10 Electrode body 11 ... Negative electrode 12 ... Positive electrode 13 ... Separator 17 ... Battery container 18 ... Positive electrode active material 18a ... Lithium containing transition metal complex oxide particle 18b ... Transition metal nitride 20 ... Three electrodes Test cell 21 ... Working electrode 22 ... Counter electrode 23 ... Reference electrode 24 ... Non-aqueous electrolyte

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Composite Materials (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Secondary Cells (AREA)
PCT/JP2013/054899 2012-02-29 2013-02-26 Matériau actif pour cellule secondaire à électrolyte non aqueux, électrode pour cellule secondaire à électrolyte non aqueux, cellule secondaire à électrolyte non aqueux et procédé de production de matériau actif pour cellule secondaire à électrolyte non aqueux Ceased WO2013129376A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012043943 2012-02-29
JP2012-043943 2012-02-29

Publications (1)

Publication Number Publication Date
WO2013129376A1 true WO2013129376A1 (fr) 2013-09-06

Family

ID=49082573

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2013/054899 Ceased WO2013129376A1 (fr) 2012-02-29 2013-02-26 Matériau actif pour cellule secondaire à électrolyte non aqueux, électrode pour cellule secondaire à électrolyte non aqueux, cellule secondaire à électrolyte non aqueux et procédé de production de matériau actif pour cellule secondaire à électrolyte non aqueux

Country Status (1)

Country Link
WO (1) WO2013129376A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015125817A (ja) * 2013-12-25 2015-07-06 株式会社豊田自動織機 複合負極活物質体、非水電解質二次電池用負極および非水電解質二次電池
JP2018530112A (ja) * 2015-10-08 2018-10-11 ナノテク インスツルメンツ インク 超高エネルギー密度を有する電極およびアルカリ金属電池の連続製造方法
JP2022547828A (ja) * 2020-01-17 2022-11-16 蜂巣能源科技股▲ふん▼有限公司 コバルトフリー層状正極材料及びその製造方法、リチウムイオン電池
US11581572B2 (en) 2018-10-09 2023-02-14 University Of Maryland, College Park Lithium metal nitrides as lithium super-ionic conductors
CN119833596A (zh) * 2024-12-19 2025-04-15 浙江锂威能源科技有限公司 一种复合正极材料及其制备方法、正极片和二次电池

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0945330A (ja) * 1995-05-24 1997-02-14 Sharp Corp 非水系二次電池
WO2002027825A1 (fr) * 2000-09-28 2002-04-04 Hitachi Maxell, Ltd. Materiau d'electrode composite, procede de fabrication, et element electrochimique faisant intervenir ce materiau
JP2002246021A (ja) * 2001-02-13 2002-08-30 Matsushita Electric Ind Co Ltd 非水電解質二次電池の負極用リチウム含有複合窒化物の製造法
JP2003115296A (ja) * 2000-09-19 2003-04-18 Hitachi Maxell Ltd リチウム含有電極材料及びその製造方法、並びにリチウム含有電極材料を用いた電気化学素子
JP2011001256A (ja) * 2009-05-21 2011-01-06 Toyota Motor Corp 窒化リチウム−遷移金属複合酸化物の製造方法、窒化リチウム−遷移金属複合酸化物およびリチウム電池
JP2011210491A (ja) * 2010-03-29 2011-10-20 Dainippon Printing Co Ltd 活物質粒子、非水電解液二次電池用正極板、ならびに非水電解液二次電池
JP2011222521A (ja) * 2010-04-12 2011-11-04 Belenos Clean Power Holding Ag 遷移金属酸窒化物

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0945330A (ja) * 1995-05-24 1997-02-14 Sharp Corp 非水系二次電池
JP2003115296A (ja) * 2000-09-19 2003-04-18 Hitachi Maxell Ltd リチウム含有電極材料及びその製造方法、並びにリチウム含有電極材料を用いた電気化学素子
WO2002027825A1 (fr) * 2000-09-28 2002-04-04 Hitachi Maxell, Ltd. Materiau d'electrode composite, procede de fabrication, et element electrochimique faisant intervenir ce materiau
JP2002246021A (ja) * 2001-02-13 2002-08-30 Matsushita Electric Ind Co Ltd 非水電解質二次電池の負極用リチウム含有複合窒化物の製造法
JP2011001256A (ja) * 2009-05-21 2011-01-06 Toyota Motor Corp 窒化リチウム−遷移金属複合酸化物の製造方法、窒化リチウム−遷移金属複合酸化物およびリチウム電池
JP2011210491A (ja) * 2010-03-29 2011-10-20 Dainippon Printing Co Ltd 活物質粒子、非水電解液二次電池用正極板、ならびに非水電解液二次電池
JP2011222521A (ja) * 2010-04-12 2011-11-04 Belenos Clean Power Holding Ag 遷移金属酸窒化物

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015125817A (ja) * 2013-12-25 2015-07-06 株式会社豊田自動織機 複合負極活物質体、非水電解質二次電池用負極および非水電解質二次電池
JP2018530112A (ja) * 2015-10-08 2018-10-11 ナノテク インスツルメンツ インク 超高エネルギー密度を有する電極およびアルカリ金属電池の連続製造方法
US11581572B2 (en) 2018-10-09 2023-02-14 University Of Maryland, College Park Lithium metal nitrides as lithium super-ionic conductors
US12278332B2 (en) 2018-10-09 2025-04-15 University Of Maryland College Park Lithium metal nitrides as lithium super-ionic conductors
JP2022547828A (ja) * 2020-01-17 2022-11-16 蜂巣能源科技股▲ふん▼有限公司 コバルトフリー層状正極材料及びその製造方法、リチウムイオン電池
JP7267504B2 (ja) 2020-01-17 2023-05-01 蜂巣能源科技股▲ふん▼有限公司 コバルトフリー層状正極材料及びその製造方法、リチウムイオン電池
CN119833596A (zh) * 2024-12-19 2025-04-15 浙江锂威能源科技有限公司 一种复合正极材料及其制备方法、正极片和二次电池

Similar Documents

Publication Publication Date Title
US9012091B2 (en) Electroactive materials for rechargeable batteries
US11394023B2 (en) Pre-lithiated electrode materials and cells employing the same
JP5259268B2 (ja) 非水電解質二次電池
CN108075113B (zh) 电池用正极活性物质和使用该电池用正极活性物质的电池
US11245114B2 (en) Electroactive materials for rechargeable batteries
JP5874430B2 (ja) 非水電解質二次電池及びその製造方法、並びに非水電解質二次電池用のリチウム遷移金属複合酸化物の製造方法
CN107431242A (zh) 电池
JP2011070789A (ja) 非水電解質二次電池
WO2018100792A1 (fr) Matériau actif d'électrode positive et batterie utilisant un matériau actif d'électrode positive
WO2018092359A1 (fr) Matériau actif d'électrode positive pour batteries, et batterie
JP2013197094A (ja) リチウムイオン２次電池用正極およびそれを含むリチウムイオン２次電池
JPWO2018198410A1 (ja) 正極活物質、および、電池
JP5151329B2 (ja) 正極体およびそれを用いたリチウム二次電池
WO2018163518A1 (fr) Matériau actif d'électrode positive, et cellule
WO2013038918A1 (fr) Matière active d'électrode positive destinée à une pile rechargeable à électrolyte non aqueux, et pile rechargeable à électrolyte non aqueux
JP2014146473A (ja) 非水電解質二次電池、及び非水電解質二次電池用正極活物質
JPWO2018150843A1 (ja) 非水電解質二次電池
JP2009277395A (ja) 非水二次電池および非水二次電池システム
KR101676687B1 (ko) 리튬 이차전지용 양극 활물질, 이의 제조방법, 및 이를 포함하는 리튬 이차전지
WO2013061922A1 (fr) Matière active d'électrode positive pour batterie rechargeable à électrolyte non aqueux, procédé de fabrication pour celle-ci et batterie rechargeable à électrolyte non aqueux
WO2013129376A1 (fr) Matériau actif pour cellule secondaire à électrolyte non aqueux, électrode pour cellule secondaire à électrolyte non aqueux, cellule secondaire à électrolyte non aqueux et procédé de production de matériau actif pour cellule secondaire à électrolyte non aqueux
JP6390915B2 (ja) 非水電解質二次電池用正極活物質
KR20200033764A (ko) 표면 코팅된 양극 활물질을 갖는 리튬 이차전지용 양극 재료, 이의 제조방법, 및 이를 포함하는 리튬 이차전지
JP2012048838A (ja) 非水電解質二次電池用活物質、非水電解質二次電池用電極、非水電解質二次電池及び非水電解質二次電池用活物質の製造方法
JP2007123251A (ja) 非水電解質二次電池

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13755714

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13755714

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: JP