[go: up one dir, main page]

WO2011078356A1 - Feuille de cuivre pour collecteur de courant d'électrode négative utilisable dans un accumulateur à solvant non aqueux, processus de production de la feuille de cuivre, et processus de production d'électrode négative d'accumulateur à solvant non aqueux - Google Patents

Feuille de cuivre pour collecteur de courant d'électrode négative utilisable dans un accumulateur à solvant non aqueux, processus de production de la feuille de cuivre, et processus de production d'électrode négative d'accumulateur à solvant non aqueux Download PDF

Info

Publication number
WO2011078356A1
WO2011078356A1 PCT/JP2010/073417 JP2010073417W WO2011078356A1 WO 2011078356 A1 WO2011078356 A1 WO 2011078356A1 JP 2010073417 W JP2010073417 W JP 2010073417W WO 2011078356 A1 WO2011078356 A1 WO 2011078356A1
Authority
WO
WIPO (PCT)
Prior art keywords
copper foil
negative electrode
secondary battery
solvent secondary
organic compound
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/JP2010/073417
Other languages
English (en)
Japanese (ja)
Inventor
健作 篠崎
昭利 鈴木
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.)
Furukawa Electric Co Ltd
Original Assignee
Furukawa 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 Furukawa Electric Co Ltd filed Critical Furukawa Electric Co Ltd
Publication of WO2011078356A1 publication Critical patent/WO2011078356A1/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
    • H01M4/64—Carriers or collectors
    • H01M4/66—Selection of materials
    • H01M4/661—Metal or alloys, e.g. alloy coatings
    • 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
    • H01M4/04—Processes of manufacture in general
    • H01M4/0402—Methods of deposition of the material
    • H01M4/0404—Methods of deposition of the material by coating on electrode collectors
    • 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
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/139—Processes of manufacture
    • 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
    • H01M4/64—Carriers or collectors
    • H01M4/66—Selection of materials
    • H01M4/665—Composites
    • H01M4/667—Composites in the form of layers, e.g. coatings
    • 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 copper foil for a negative electrode current collector of a nonaqueous solvent secondary battery and a method for producing the same. More specifically, when the present invention is used as a negative electrode current collector of a Li (lithium) ion secondary battery, the copper foil has excellent adhesion to the negative electrode active material of the battery and can improve charge / discharge characteristics. And a method for producing the copper foil. Moreover, this invention relates to the manufacturing method of a nonaqueous solvent secondary battery negative electrode, and is related with the manufacturing method of the negative electrode which is excellent in the adhesiveness of copper foil and a negative electrode active material especially, and a charging / discharging characteristic improves.
  • a secondary battery using a non-aqueous electrolyte (hereinafter referred to as a non-aqueous solvent secondary battery) is characterized by high electromotive force and high energy density.
  • a typical example is a Li-ion secondary battery.
  • a Li ion secondary battery is a battery can that also serves as a negative electrode terminal with an electrode group formed by interposing a separator having electrical insulation and liquid retention between a positive electrode and a negative electrode.
  • the battery can is housed together, and the opening of the battery can is sealed with a sealing plate provided with a positive terminal via an insulating gasket.
  • the positive electrode is manufactured as follows. First, as a positive electrode active material, for example, LiCoO 2 powder, a carbon conductive agent, and a binder such as polyvinylidene fluoride are kneaded with a non-aqueous solvent such as N-methylpyrrolidone to obtain a positive electrode slurry having a predetermined composition. Prepare. Next, a predetermined amount of this slurry is applied to both surfaces of an aluminum foil as a positive electrode current collector, dried and press-molded to obtain a positive electrode sheet having a predetermined thickness, and a lead is attached to a predetermined portion of the positive electrode sheet. And
  • a positive electrode active material for example, LiCoO 2 powder, a carbon conductive agent, and a binder such as polyvinylidene fluoride are kneaded with a non-aqueous solvent such as N-methylpyrrolidone to obtain a positive electrode slurry having a predetermined composition.
  • a predetermined amount of this slurry is
  • an aqueous slurry and a solvent slurry are used.
  • CMC carboxymethyl cellulose
  • SBR styrene butadiene rubber
  • a negative electrode slurry is prepared by mixing graphite powder or amorphous carbon powder in N-methylpyrrolidone, which is a solvent, and adding polyvinylidene fluoride as a binder.
  • a predetermined amount of either slurry is applied to both sides of a copper foil as a negative electrode current collector, dried and press-molded to form a negative electrode sheet having a predetermined thickness, and a lead is attached to the predetermined portion to form a negative electrode.
  • negative electrode slurry As described above, there are two types of negative electrode slurry: a negative electrode slurry using water as a solvent and a negative electrode slurry using an organic solvent as a solvent. Recently, negative electrode slurries using water as a solvent from the viewpoint of environmental problems and explosion-proof properties. Use is becoming mainstream.
  • the copper foil is generally adopted as the negative electrode current collector for the following reason.
  • Copper foil is excellent in electrical conductivity and has high mechanical strength, so that it can be easily handled during production. Further, there is a property that an alloy is not generated between Li ions entering and exiting in the process of charge and discharge. Further, the copper foil can be made into a thin foil at low cost, and even a wide copper foil necessary for mass production of batteries can be easily manufactured. For the reasons described above, copper foil is used as the negative electrode current collector.
  • the charge / discharge cycle life characteristics which are the most important characteristics for a secondary battery, and the battery capacity at the initial stage of charging depend on the surface condition (for example, surface roughness, type of surface film, etc.) of the copper foil as the negative electrode current collector. It has become clear. That is, it has been found that there is a problem in the adhesion of the negative electrode active material provided on the surface of the copper foil depending on the surface state of the copper foil.
  • the copper foil as the negative electrode current collector includes an electrolytic copper foil and a rolled copper foil.
  • Electrolytic copper foil is manufactured by performing copper plating on a rotating titanium drum with a plating solution containing copper sulfate-sulfuric acid as a main component, and stripping off the copper plating to continuously wind up the copper in the form of a foil.
  • a rolled copper foil melts copper, casts an ingot, performs hot rolling, then repeatedly performs cold rolling and intermediate annealing, and performs final cold rolling to produce a copper foil.
  • a benzotriazole film or a chromate film is applied to the surface of the copper foil after the foil formation as a rust preventive treatment (see Patent Documents 1 and 2).
  • the copper foil covered with the rust preventive film is supplied to the negative electrode slurry application line for applying the negative electrode active material as the negative electrode current collector, and the negative electrode slurry is applied to the surface thereof.
  • the adhesiveness with the negative electrode active material differs depending on the kind of the rust preventive film or the generation method, and the better the adhesiveness, the smaller the decrease in capacity after repeating the charge / discharge cycle.
  • the copper foil for a non-aqueous solvent secondary battery negative electrode current collector of the present invention has an organic compound film formed on the surface of the copper foil, and the reciprocal (1 / C) of the electric double layer capacity on at least one side of the copper foil is It is characterized by being 0.31-0.9 cm 2 / ⁇ F.
  • the organic compound film is preferably a film containing a triazole compound or a film containing a triazole compound and an amine compound.
  • a solution containing an organic compound is brought into contact with the surface of the copper foil, and then dried, and at least one surface of the copper foil has an electric double layer capacity.
  • a film having an inverse number (1 / C) of 0.31 to 0.9 cm 2 / ⁇ F is formed.
  • the organic compound is a film containing a triazole compound or a film containing a triazole compound and an amine compound.
  • an organic compound film having an electric double layer capacity reciprocal (1 / C) of 0.31 to 0.9 cm 2 / ⁇ F is formed on at least one surface of a copper foil.
  • a negative electrode active material slurry using water as a solvent is applied to the surface of the formed copper foil and dried.
  • the copper foil for the negative electrode of the non-aqueous solvent secondary battery of the present invention is excellent in adhesion to the negative electrode active material, and is capable of maintaining the charge / discharge cycle life and high battery capacity of the non-aqueous solvent secondary battery. It has the effect.
  • the method for producing a copper foil for a non-aqueous solvent secondary battery negative electrode current collector of the present invention is an excellent non-aqueous solvent secondary battery capable of maintaining the charge / discharge cycle life and high battery capacity of the non-aqueous solvent secondary battery. This is an excellent manufacturing method in which a copper foil for a negative electrode of a battery can be easily provided.
  • the method for producing a non-aqueous solvent secondary battery negative electrode of the present invention it is possible to provide a negative electrode having excellent adhesion between a copper foil and a negative electrode active material and improved charge / discharge characteristics.
  • the inventors of the present invention have developed a copper foil for a negative electrode current collector of a Li ion secondary battery in which an organic compound film having a certain thickness is formed on the surface of the copper foil to improve adhesion with the negative electrode active material.
  • Li ion secondary batteries developed as batteries for electric vehicles have been demanded to further improve performance.
  • the thickness of the organic compound film increases the adhesion of the negative electrode active material and has become an important factor for the corrosion resistance of the copper foil surface.
  • the reciprocal (1 / C) of the electric double layer capacitance indicating the thickness of the dielectric layer described in Patent Document 1 is 0.1 to 0.3 cm 2 / ⁇ F, the thickness of the organic compound film is small. The effect of increasing the adhesion between the copper foil and the negative electrode active material is not sufficient, and the anticorrosion of the copper foil has become insufficient.
  • the 1 / C value is set within the range of 0.31 to 0.9 cm 2 / ⁇ F.
  • the adhesion with the active material tends to be low and the corrosion resistance tends to be poor.
  • a copper foil having a 1 / C value greater than 0.9 cm 2 / ⁇ F is because even if it is further increased (even if the film is thickened), the adhesiveness is saturated and the improvement effect is lost.
  • the material for producing the copper foil may be either an electrolytic copper foil or a rolled copper foil.
  • electrolytic copper foil a wide variety can be made at low cost, and it is necessary to increase productivity and mass production. For example, it is suitable for use as a negative electrode current collector of an electric vehicle battery. Yes.
  • the surface roughness of the copper foil according to the embodiment of the present invention is preferably 2.5 ⁇ m or less in terms of the 10-point average roughness (Rz) defined by JISB0601-1994.
  • Such a copper foil can form an organic compound film with a thin and uniform thickness, and the negative electrode active material carried thereon is also uniform, and has excellent adhesion to the negative electrode active material, and charging / discharging of the battery. Cycle life characteristics and initial battery capacity are improved.
  • the thickness of the copper foil is preferably 20 ⁇ m or less even in the case of a small battery for portable electric / electronic devices or a large battery for an electric vehicle.
  • the thickness of the copper foil is made too thin, its mechanical strength decreases and pinholes and the like increase, so the lower limit of the thickness of the copper foil that can withstand actual use is about 6 ⁇ m.
  • the preferred thickness of the copper foil is 20 to 6 ⁇ m.
  • the organic compound film formed on the surface of the copper foil is a film containing a triazole compound.
  • it is a film containing a triazole compound and an amine compound.
  • the triazole compound, or the triazole compound and the amine compound are dissolved in water or an organic solvent, the solution temperature is kept constant, the copper foil is immersed for a certain time, and then dried to form an organic compound film on the copper foil surface. .
  • the concentration of the triazole compound solution, triazole compound and amine compound solution is preferably 10 to 10,000 ppm. If it is less than 10 ppm, the organic compound film thickness is not sufficient to maintain the adhesion to the negative electrode active material, and even if it exceeds 10,000 ppm, the organic compound film thickness is saturated, and the effect of improving adhesion cannot be expected. Because. More preferably, it is 50 to 5,000 ppm. Further, the temperature of the solution may be room temperature, but may be used after heating if necessary.
  • the adhesion between the copper foil and the negative electrode active material is further improved as compared to the case of the triazole compound alone, and the corrosion resistance of the copper foil is also improved. More preferred.
  • the blending ratio of the triazole compound and the amine compound is about 0.5 to 2 times that of the amine compound relative to the triazole compound by weight. This is because even if the amine compound is added twice or more, improvement in adhesion and corrosion resistance can no longer be expected, and if it is less than 0.5 times, the effect of adhesion and corrosion resistance is not exhibited.
  • the immersion time of the copper foil in the solution is appropriately determined depending on the relationship between the concentration of the triazole compound, the triazole compound and the amine compound, the solution temperature, and the thickness of the organic compound film to be formed, but usually 0.5 to 30 seconds. Any degree is acceptable.
  • triazole compound examples include benzotriazole, tolyltriazole, carboxybenzotriazole, chlorobenzotriazole, ethylbenzotriazole, and naphthotriazole.
  • Examples of the amine compound include monoamines such as monoalkylamine, dialkylamine, trialkylamine, monocyclohexylamine, dicyclohexylamine, diamines substituted with 1 to 4 alkyl groups, and at least one alkyl group.
  • Examples include alkyl monoamines and alkyl diamines having a hydrophilic group such as a hydroxyl group or a polyoxyethylene group.
  • monoethanolamine, diethanolamine, triethanolamine, dimethylethanolamine, diethylethanolamine, monomethylethanolamine, monoethylethanolamine, monobutylethanolamine and the like can be mentioned.
  • This organic compound film is generally formed on both sides of the copper foil, but it may be only on one side in relation to the battery manufacturing process, the form as the negative electrode and the purpose of use. However, in the case of a positive electrode and a negative electrode of a normal Li ion secondary battery, both have a structure in which an active material is supported on both surfaces of each current collector. A film layer is preferably formed.
  • the copper foil for negative electrode current collectors used for the non-aqueous solvent secondary battery based on the embodiment of the present invention is manufactured by the process shown in FIG. Step 1: For example, a copper foil having a thickness of 6 to 20 ⁇ m and a surface roughness (Rz) of 2.5 ⁇ m or less is manufactured / prepared.
  • Step 2 The copper foil is immersed in an aqueous solution containing an organic compound and brought into contact with the aqueous solution.
  • Step 3 Dry.
  • a copper foil for a negative electrode current collector having a 1 / C of 0.31 to 0.9 cm 2 / ⁇ F is formed.
  • Step 4 Apply negative electrode active material slurry.
  • Step 5 Dry. Examples based on the embodiments of the present invention will be described below.
  • Rz surface roughness
  • a CMC aqueous solution having a concentration of 1.0% by mass was obtained by dissolving carboxymethyl cellulose (CMC) [# 1380 manufactured by Daicel Chemical Industries, Ltd.] in deionized water using a homomixer manufactured by PRIMIX.
  • CMC carboxymethyl cellulose
  • the non-aqueous solvent secondary battery negative electrode copper foils of the embodiments and examples of the present invention have excellent adhesion to the negative electrode active material and oxidation resistance, and are discolored even in high temperature and high humidity environments. Without having such an effect, the charge / discharge cycle life of the nonaqueous solvent secondary battery and the high battery capacity can be maintained.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Composite Materials (AREA)
  • Cell Electrode Carriers And Collectors (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

La longévité du cycle charge-décharge d'un accumulateur à solvant non aqueux et la capacité de la batterie de l'accumulateur à solvant non aqueux dans l'étape initiale de la charge de la batterie varient en fonction des conditions de la surface d'une feuille de cuivre d'une électrode négative dans l'accumulateur à solvant non aqueux. L'invention concerne ainsi : une feuille de cuivre utilisable dans un collecteur de courant d'électrode négative pour un accumulateur à solvant non aqueux, qui permet de conserver une excellente longévité de cycle de charge-décharge et une capacité de batterie élevée ; et un processus servant à produire la feuille de cuivre. Dans la feuille de cuivre ou son utilisation dans un collecteur de courant d'électrode négative pour un accumulateur à solvant non aqueux, une pellicule de revêtement en composé organique est formée sur la surface de la feuille de cuivre, l'inverse (1/C) de la capacité électrique double couche sur au moins une surface de la pellicule de revêtement en composé organique est comprise entre 0,31 et 0,9 cm2/µF et la pellicule de revêtement en composé organique comprend un composé du triazole ou à la fois un composé du triazole et un composé d'amine.
PCT/JP2010/073417 2009-12-25 2010-12-24 Feuille de cuivre pour collecteur de courant d'électrode négative utilisable dans un accumulateur à solvant non aqueux, processus de production de la feuille de cuivre, et processus de production d'électrode négative d'accumulateur à solvant non aqueux Ceased WO2011078356A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009-294318 2009-12-25
JP2009294318A JP2011134651A (ja) 2009-12-25 2009-12-25 非水溶媒二次電池負極集電体用銅箔その製造方法及び非水溶媒二次電池負極電極の製造方法

Publications (1)

Publication Number Publication Date
WO2011078356A1 true WO2011078356A1 (fr) 2011-06-30

Family

ID=44195881

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2010/073417 Ceased WO2011078356A1 (fr) 2009-12-25 2010-12-24 Feuille de cuivre pour collecteur de courant d'électrode négative utilisable dans un accumulateur à solvant non aqueux, processus de production de la feuille de cuivre, et processus de production d'électrode négative d'accumulateur à solvant non aqueux

Country Status (3)

Country Link
JP (1) JP2011134651A (fr)
TW (1) TW201145660A (fr)
WO (1) WO2011078356A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9705155B2 (en) 2012-03-15 2017-07-11 Kabushiki Kaisha Toshiba Electrode for solid electrolyte secondary battery, solid electrolyte secondary battery, and battery pack
JPWO2020240746A1 (fr) * 2019-05-29 2020-12-03

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103782415A (zh) * 2012-03-23 2014-05-07 株式会社东芝 非水电解质二次电池用负极、非水电解质二次电池以及电池包
JPWO2014156362A1 (ja) * 2013-03-28 2017-02-16 古河電気工業株式会社 表面処理電解銅箔
KR102029139B1 (ko) 2015-11-09 2019-10-07 케이씨에프테크놀로지스 주식회사 전해동박, 그것을 포함하는 전극, 그것을 포함하는 이차전지, 및 그것의 제조방법
JP6925109B2 (ja) * 2016-09-02 2021-08-25 株式会社エンビジョンＡｅｓｃジャパン リチウムイオン二次電池用電極接合体
JP7100560B2 (ja) 2018-10-29 2022-07-13 Ｊｘ金属株式会社 リチウムイオン電池集電体用圧延銅箔及びリチウムイオン電池
US20240379967A1 (en) * 2021-04-27 2024-11-14 Nissan Chemical Corporation Composition for forming thin film for energy storage device electrode

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1021928A (ja) * 1996-06-28 1998-01-23 Furukawa Circuit Foil Kk 二次電池用電極材料
JPH11273683A (ja) * 1998-03-19 1999-10-08 Furukawa Electric Co Ltd:The 非水溶媒二次電池の負極集電体用銅箔、およびその製造方法
JP2008226800A (ja) * 2007-03-16 2008-09-25 Fukuda Metal Foil & Powder Co Ltd リチウム二次電池負極集電体用銅箔およびその製造方法
JP2008251469A (ja) * 2007-03-30 2008-10-16 Nikko Kinzoku Kk 濡れ性に優れた銅箔及びその製造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1021928A (ja) * 1996-06-28 1998-01-23 Furukawa Circuit Foil Kk 二次電池用電極材料
JPH11273683A (ja) * 1998-03-19 1999-10-08 Furukawa Electric Co Ltd:The 非水溶媒二次電池の負極集電体用銅箔、およびその製造方法
JP2008226800A (ja) * 2007-03-16 2008-09-25 Fukuda Metal Foil & Powder Co Ltd リチウム二次電池負極集電体用銅箔およびその製造方法
JP2008251469A (ja) * 2007-03-30 2008-10-16 Nikko Kinzoku Kk 濡れ性に優れた銅箔及びその製造方法

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9705155B2 (en) 2012-03-15 2017-07-11 Kabushiki Kaisha Toshiba Electrode for solid electrolyte secondary battery, solid electrolyte secondary battery, and battery pack
JPWO2020240746A1 (fr) * 2019-05-29 2020-12-03
EP3979357A4 (fr) * 2019-05-29 2023-03-01 Daicel Corporation Bouillie
JP7271660B2 (ja) 2019-05-29 2023-05-11 株式会社ダイセル スラリー

Also Published As

Publication number Publication date
JP2011134651A (ja) 2011-07-07
TW201145660A (en) 2011-12-16

Similar Documents

Publication Publication Date Title
CN104342724B (zh) 电解铜箔
JP3581784B2 (ja) 非水溶媒二次電池の負極集電体用銅箔
WO2011078356A1 (fr) Feuille de cuivre pour collecteur de courant d'électrode négative utilisable dans un accumulateur à solvant non aqueux, processus de production de la feuille de cuivre, et processus de production d'électrode négative d'accumulateur à solvant non aqueux
TWI466367B (zh) A lithium ion secondary battery, an electrode for the secondary battery, an electrode for an electrolytic copper foil
KR101555090B1 (ko) 2차 전지용 음극, 음극집전체 및 이의 제조 방법, 및 2차 전지
CN110137485B (zh) 一种含有表面修饰膜的硅负极材料的制备方法
CN101867037B (zh) 磷酸铁锂锂离子电池正极片及其制备方法
JP2011134623A (ja) 非水電解質二次電池及びその製造方法
US20150349380A1 (en) Electrolyte additives for lithium-sulfur batteries
Wen et al. Carbon coated stainless steel mesh as a low-cost and corrosion-resistant current collector for aqueous rechargeable batteries
WO2006085416A1 (fr) Émulsion de résine de liant pour l’électrode d’un dispositif d’énergie, électrode d’un dispositif d’énergie et dispositif d’énergie l’utilisant
WO2012057031A1 (fr) Composition d'agent de couche intermédiaire conductrice
TWI686002B (zh) 蓄電裝置用集電體、其製造方法及用於其製造之塗佈液
CN104508878B (zh) 锂离子二次电池负极集电体用铜箔
JP2014130706A (ja) 蓄電デバイス用正極および蓄電デバイス
KR101828880B1 (ko) 리튬 이온 2차 전지용 표면 처리 전해 동박, 이것을 이용한 리튬 이온 2차 전지용 전극 및 리튬 이온 2차 전지
JP2008066274A (ja) エネルギーデバイス電極用バインダ樹脂エマルション及びこれを用いたエネルギーデバイス電極並びにエネルギーデバイス
Soundarrajan et al. Dual application of non-fluorinated polymer: Influence on mitigating dendrite growth and structural integrity of high energy density lithium metal battery
TW201701517A (zh) 鋰二次電池電極用組成物
WO2019065930A1 (fr) Peinture de matériau actif d'électrode négative, électrode négative et batterie rechargeable
KR20200074458A (ko) 음극 집전체를 사용한 리튬이온커패시터용 음극
KR20190060587A (ko) 수도커패시터용 집전체의 제조 방법
WO2017199798A1 (fr) Collecteur pour dispositifs de stockage d'électricité, son procédé de fabrication, électrode pour dispositifs de stockage d'électricité, procédé de fabrication d'électrode pour dispositifs de stockage d'électricité, suspension épaisse permettant la formation d'une couche de protection, et dispositif de stockage d'électricité
CN119833777A (zh) 二次电池及电子设备
WO2024150812A1 (fr) Composition pour formation d'électrode, additif, et inhibiteur de gélification

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: 10839585

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: 10839585

Country of ref document: EP

Kind code of ref document: A1