WO2007125924A1 - Liant pour électrode de cellule électrochimique - Google Patents

Liant pour électrode de cellule électrochimique Download PDF

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Publication number
WO2007125924A1
WO2007125924A1 PCT/JP2007/058867 JP2007058867W WO2007125924A1 WO 2007125924 A1 WO2007125924 A1 WO 2007125924A1 JP 2007058867 W JP2007058867 W JP 2007058867W WO 2007125924 A1 WO2007125924 A1 WO 2007125924A1
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WIPO (PCT)
Prior art keywords
monomer
binder
electrochemical cell
acrylic
olefin
Prior art date
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PCT/JP2007/058867
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English (en)
Japanese (ja)
Inventor
Kazuo Yamamoto
Tatsuya Kiyomiya
Makoto Nakano
Original Assignee
Mitsui Chemicals, Inc.
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Priority to JP2008513226A priority Critical patent/JP5227169B2/ja
Publication of WO2007125924A1 publication Critical patent/WO2007125924A1/fr

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    • 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
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • H01M4/621—Binders
    • H01M4/622—Binders being polymers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/04—Hybrid capacitors
    • H01G11/06—Hybrid capacitors with one of the electrodes allowing ions to be reversibly doped thereinto, e.g. lithium ion capacitors [LIC]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/22—Electrodes
    • H01G11/30—Electrodes characterised by their material
    • H01G11/32—Carbon-based
    • H01G11/38—Carbon pastes or blends; Binders or additives therein
    • 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
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • H01M4/621—Binders
    • 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 binder for an electrochemical cell electrode comprising an aqueous emulsion composition containing an olefin polymer and an acrylic polymer.
  • Electrochemical cells such as secondary batteries and electrochemical double layer capacitors are used in various fields.
  • Secondary batteries that can be used repeatedly by charging are widely used, for example, as power sources for cordless electronic devices such as mobile phones, notebook computers, and power tools, and as power sources for driving automobiles such as environmentally friendly hybrid vehicles.
  • Alkaline secondary batteries (Ni-MH batteries) obtained using hydrogen storage alloys, non-aqueous electrolyte secondary batteries (lithium ion batteries) using lithium compounds, and the like have been put into practical use.
  • the electric double layer capacitor is an electronic component that has been widely used in various fields such as the electronics industry, home appliances, and automobiles as a backup power source for ICs, LSI memories, and actuators. In recent years, expectations for improving the performance of electrochemical cells such as secondary batteries and electric double layer capacitors are increasing.
  • Positive and negative electrodes of secondary batteries such as Ni_MH batteries and lithium ion batteries are produced by binding each active material for positive and negative electrodes to a current collector with a binder.
  • the positive and negative electrodes of the electric double layer capacitor use activated carbon as the positive and negative electrode active materials, and like the secondary battery, the active materials for positive and negative electrodes are bound to the metal current collector by the binder. It is produced by making it.
  • a positive electrode binder is a solution of polyvinylidene fluoride (PVDF) dissolved in N-methyl-2-pyrrolidone (NMP) or an aqueous dispersion of polytetrafluoroethylene (PTFE). PVDF or styrene-butadiene rubber (SBR) aqueous dispersion (Patent Document 1) is used as the binder for the negative electrode.
  • PVDF polyvinylidene fluoride
  • NMP N-methyl-2-pyrrolidone
  • PTFE polytetrafluoroethylene
  • PVDF or styrene-butadiene rubber (SBR) aqueous dispersion Patent Document 1 is used as the binder for the negative electrode.
  • Fluorocarbon resins such as PVDF and PTFE have low adhesion to active materials and metal current collectors . Therefore, it is necessary to add a large amount as a binder, and there is a problem of covering the surface of the active material and deteriorating battery characteristics. In addition, since the fluororesin has low adhesion to the active material and metal current collector, repeated charging and discharging of the secondary battery and capacitor will cause the active material to fall out of the metal current collector, reducing the battery capacity. There is a problem to make.
  • Patent Document 2 an olefin-based polymer that is electrochemically stable and has a low swelling property with respect to an electrolytic solution
  • Patent Document 3 a method of copolymerizing an olefin monomer and an acrylate ester or methacrylate ester monomer (Patent Document 3), and a method of adding an acrylic resin to olefin (Patent Document 3) 4) is disclosed, but the acrylic resin part swells with respect to the electrolyte solvent, so that the contact with the active material and the current collector is lost, and the battery and capacitor characteristics are deteriorated.
  • the binder is aggregated in the paste for forming the electrode, so that a large amount of surfactant needs to be added, and there is a problem that a large amount of the free surfactant in the paste deteriorates the battery characteristics. Therefore, the adhesion to the active material and the metal current collector, the high-rate discharge characteristics and cycle characteristics of the secondary battery, and the electrostatic capacity and internal resistance of the electric double layer capacitor were still insufficient.
  • Patent Document 1 Japanese Patent No. 3101775
  • Patent Document 2 JP 2002-251998
  • Patent Document 3 Japanese Unexamined Patent Publication No. 2005-63735
  • Patent Document 4 Japanese Unexamined Patent Application Publication No. 2004-327064
  • the present invention provides sufficient adhesion to a metal current collector, a positive electrode active material, and a negative electrode active material.
  • the present invention provides a binder for an electrochemical cell electrode that can improve the high rate discharge characteristics, cycle characteristics, and capacitance of the electrochemical cell and reduce the internal resistance. Means for solving the problem
  • a binder for an electrochemical cell electrode comprising an emulsion composition in which resin particles formed from an olefin polymer (A) and an acrylic polymer (B) having an internally crosslinked structure are dispersed in water .
  • the binder for an electrochemical cell electrode according to (1) which is produced from a monomer containing a polyfunctional monomer (b-2).
  • Acrylic polymer (B) having an internal cross-linked structure is composed of an acrylic monofunctional monomer (b—12) having a reactive group, the acrylic monomer (b— (1)
  • the binder for an electrochemical cell electrode according to (1) which is produced from a compound containing the compound (c) having two or more groups capable of reacting with the reactive group of 2).
  • the acrylic monofunctional monomer (b-12) having the reactive group is a reactive lpoxyl group and / or a hydroxyl group, and the acrylic group of the compound (c)
  • An acrylic polymer (B) having an internal cross-linked structure is formed from an allylic monofunctional monomer (b-1 1 2) having a reactive group (1), a reactive group (1
  • the binder for electrochemical cell electrodes according to (1) which is produced from a monomer containing an acrylic monofunctional monomer having a reactive group (2) that reacts with (2).
  • olefin polymer (A) comprises a copolymer of an olefin monomer (a-1) Cell electrode binder.
  • the olefin polymer (A) comprises an olefin monomer (a-1) and an olefin monomer.
  • the binder for an electrochemical cell electrode according to any one of (1) to (6), which contains a copolymer of another monomer (a-2) that can be copolymerized.
  • the ratio of the olefin-based monomer (a-1) to the other monomer (a_2) copolymerizable with the olefin-based monomer is (a_l) and (a_2) (A_l) force S99. 9-35.0% by weight, (a-2) is 0.1-65.0% by weight based on the total weight, and the electrochemical cell electrode bar according to (7). Inder.
  • the olefin polymer (A) is 95 to 30% by weight, and the acrylic polymer ( The binder for electrochemical cell electrodes according to any one of (1) to (8), wherein B) is 5 to 70% by weight.
  • an electrochemical cell electrode that has sufficient adhesion to a metal current collector, a positive electrode active material, and a negative electrode active material, and can improve high rate discharge characteristics and cycle characteristics.
  • a binder can be obtained.
  • the olefin polymer used in the present invention is a homopolymer of an olefin monomer (a-1), a copolymer of an olefin monomer (a-1), an olefin monomer (a—). It is a copolymer with other monomer (a-2) that can be copolymerized with 1).
  • the olefin-based monomer (a-1) is not particularly limited, and examples thereof include ethylene, propylene, 1-butene, 1 pentene, 1-hexene, 4-methinole 1 pentene.
  • the other monomer (a-2) copolymerizable with the olefin monomer (a-1) is not particularly limited as long as it is copolymerizable, Examples include styrene, methyl acrylate, methyl methacrylate, butylacetate, butyalcohol, and unsaturated carboxylic acids such as maleic acid, acrylic acid, and methacrylic acid. These monomers can be used alone or in combination of two or more.
  • ethylene and propylene are used as the monomer (a_l), and maleic acid, acrylic acid, methacrylic acid S as the monomer (a_2), and cycle characteristics of the electrochemical cell. From the point of view, it is preferable.
  • homopolymer of the olefin-based monomer (a-1) and the copolymer of the olefin-based monomer (a-1) include low-density polyethylene, high-density polyethylene, polypropylene, polymer, and the like.
  • ethylene / propylene copolymer and propylene / 1-butene copolymer are preferable from the viewpoint of cycle characteristics of the electrochemical cell.
  • copolymer of the olefin-based monomer (a-1) and the other monomer (a-2) that can be copolymerized include ethylene 'Butyl acetate copolymer, ethylene' Ethylene.unsaturated carboxylic acid copolymers such as butyl alcohol copolymer and ethylene 'methacrylic acid copolymer And propylene'maleic anhydride copolymer.
  • ethylene.unsaturated carboxylic acid copolymers such as ethylene'methacrylic acid copolymer and propylene'maleic anhydride copolymer are preferable in view of cycle characteristics of the electrochemical cell.
  • the olefin-based polymer (A) can be used alone or in combination of two or more.
  • the acrylic polymer (B) is characterized by having an internal cross-linked structure.
  • the binder for an electrochemical cell electrode containing the acrylic polymer (B) having an internally cross-linked structure is suppressed from swelling with respect to the electrolyte solvent, and further, the metal current collector, the positive electrode active material, and the negative electrode Sufficient adhesion to the active material.
  • the method for producing the acrylic polymer (B) having an internally crosslinked structure is not particularly limited, but the acrylic monofunctional monomer (b-1) and the polyfunctional monomer (b- 2)
  • a method for producing an acrylic polymer (B) from a monomer containing the above (hereinafter, the polymer obtained by this production method is also referred to as an acrylic polymer (B1)), which has a reactive group An acrylic monofunctional monomer (b-1 1 2) and a compound (c) having two or more groups that react with the reactive group of the acrylic monomer (b-1 1 2)
  • a method for producing an acrylic polymer (B) from a compound containing the same hereinafter, the polymer obtained by this production method is also referred to as an acrylic polymer (B2)
  • an acrylic monofunctional monomer having a reactive group The monomer (b-1 1 2) is polymerized using two or more monomers, and the reactive groups of the monomer (b-1 1 2) are reacted with each other.
  • the acrylic polymer (B) of the present invention is produced from a monomer containing at least an acrylic monofunctional monomer (b-1).
  • the acrylic monofunctional monomer (b-1) includes an acrylic monofunctional monomer ( b 1 1 _; L) having no reactive group and an acrylic monofunctional monomer having a reactive group. It is classified as a monofunctional monomer (b— 1 1 2).
  • the reactive group in the acrylic monofunctional monomer (b 1 1) is a group that the compound (c) described later has, for example, a group that reacts with an epoxy group. That means.
  • the acrylic polymer (B3) two or more of the above-mentioned acrylic monofunctional monomers (b_l) are used, and the two monomers include the reactive group. There is no particular limitation as long as they react with each other. For example, when one monomer (b_l) has an epoxy group, a monomer having a carboxyl group can be used as the other monomer (b-1).
  • acrylic monofunctional monomer (b-11) having no reactive group methyl acrylate, ethyl acrylate, n-butyl acrylate, i-butyl acrylate, acrylic acid 2- Alkyl (meth) acrylates such as ethyl hexyl, lauryl acrylate, methyl methacrylate, ethyl methacrylate, n-butyl methacrylate, i-butyl methacrylate, 2-ethylhexyl methacrylate, lauryl methacrylate; acrylamide, Examples include N-alkyl-substituted (meth) acrylamides such as methacrylamide, N, N dimethylacrylamide, N, N jetylacrylamide, and N-isopropylacrylamide.
  • the monomers (b-11) can be used singly or in combination of two or more.
  • the acrylic monofunctional monomer (b-12) having a reactive group may be any acrylic monofunctional monomer having a group that reacts with the compound (c) described later. There is no particular limitation.
  • the compound (c) is a compound having an epoxy group
  • an acrylic monofunctional monomer having a carboxyl group such as acrylic acid or methacrylic acid, hydroxyethyl propyl methacrylate, etc.
  • Hydroxyl groups represented by hydroxyalkyl (meth) atalylate examples thereof include acrylic monofunctional monomers.
  • a carboxyl group such as acrylic acid or methacrylic acid is used as one of the acrylic monofunctional monomers (b-12) having a reactive group.
  • an acrylic monofunctional monomer having an epoxy group is used, an acrylic monofunctional monomer having an epoxy group, such as glycidino raretailate or glycidyl methacrylate, is used as a monofunctional monomer. It can be used as another kind of (b_1-2).
  • the polyfunctional monomer (b_2) that is, the above-described acrylic polymer (B1)
  • monomers having two or more bur groups include ethylene glycolonoresyl methacrylate, propylene glycolonoresimethacrylate, diethylene glycol ditalylate, triethylene glycol ditalylate, tetraethylene glycol ditalylate, divinyl. Examples include benzene.
  • the monomer (b-2) may be used alone or in combination of two or more.
  • the acrylic monofunctional monomer (b-12) in addition to the above-mentioned acrylic monofunctional monomer having a reactive group, the acrylic monofunctional monomer (b-12), The compound (c) having two or more groups that react with the reactive group of the acrylic monomer (b-12) is used.
  • the reactive group of the monomer (b-12) is, for example, a hydroxyl group or a carboxyl group
  • an epoxy is used.
  • an epoxy group is preferable from the viewpoint of reaction rate.
  • Examples of the compound (c) having two or more epoxy groups include glycidyl ether compounds such as bisphenol 1 type A epoxy resin and phenol novolac type epoxy resin, darisidyl ester compounds, and glycidylamine compounds. Etc. Among these compounds, diglycidyl ether compounds such as bisphenol-A type epoxy resins are preferred from the viewpoint of reaction rate.
  • Examples of commercially available products of the diglycidinole ether compound include epomic (manufactured by Mitsui Chemicals, Inc.).
  • the compound (c) can be used singly or in combination of two or more.
  • acrylic polymer (B3) two or more kinds of acrylic monofunctional monomers (b_l_2) having a reactive group are used.
  • the acrylic polymer (B3) can be produced by polymerizing these monomers (b_l_2) and reacting the reactive groups of the monomer (b_l_2). Therefore, in producing the acrylic polymer (B3), one monomer (b—12) having a reactive group (1) and a reactive group that reacts with the reactive group (1). It is necessary to use another monomer (b-1-2) having (2).
  • an acrylic monofunctional monomer having a carboxyl group such as acrylic acid or methacrylic acid is used as the acrylic monofunctional monomer (b-12) having a reactive group (1).
  • an acrylic monofunctional monomer having an epoxy group such as glycidyl acrylate or glycidyl methacrylate, is converted into a monofunctional monomer (b— 1 2) having a reactive group (2).
  • the acrylic polymer (B3) is produced, as described above, the acryl-based monofunctional monomer (b-1-12) having the reactive group (1), the reactive group It is necessary to use another monomer having (2) (b-1 -2), but if necessary, an acrylic monofunctional monomer having no reactive group (B— 1 1 1), attalinole monofunctional monomers (b— 1 1 2) having other reactive groups, and polyfunctional monomers (b— 2) may be used. Les.
  • (3) may be a group that reacts with both the reactive group (1) and the reactive group (2), or may be a group that reacts with one of them, or both. No, no response to any deviation It may be.
  • a non-acrylic monomer having a reactive group (b) that can be copolymerized with the acrylic monofunctional monomer (b-1). You can use 3).
  • the monomer (b_3) include a carboxyl group such as crotonic acid, itaconic acid, fumaric acid, and maleic acid when the compound (c) is a compound having an epoxy group.
  • Monomer For example, when the acrylic polymer (B2) is produced using the compound (c) having an epoxy group, the internal crosslinking structure is further controlled by further using the monomer (b_3). be able to.
  • an acrylic polymer (B3) when producing an acrylic polymer (B3), an acrylic monofunctional monomer (b-12) having an epoxy group as a reactive group is used.
  • the acrylic polymer (B3) is produced, the internal crosslinking structure can be further controlled by further using the monomer (b_3).
  • the monomer (b-3) may be used alone or in combination of two or more.
  • Examples of the monomer (b-4) include polar group-containing monomers such as acrylonitrile and methacrylonitrile; aromatic monomers such as styrene and ⁇ -methylstyrene.
  • the above monomer (b-4) excludes olefin-based monomers such as ethylene, propylene and 1-butene.
  • the monomer (b-4) can be used singly or in combination of two or more.
  • an acrylic monofunctional monomer (b-1), a polyfunctional monomer (b-2), and a monomer (b) used as necessary Based on the total weight of b-3) and (b-4), the usual amounts of use are (b_l) 10-99.5 wt%, (b_2) 0.5-30 wt% (B_3) is 0 to 60% by weight, and (b_4) is 0 to 60% by weight.
  • the amount used is in the above range, the resulting binder has a tendency to be less swellable with respect to the electrolyte while maintaining adhesion to the electrode, and the binder was used. The battery characteristics of the battery tend to be lower.
  • the resulting binder has a tendency to be less swellable with respect to the electrolyte while maintaining adhesion to the electrode, and the battery characteristics of the battery using the binder are as follows. There is a tendency not to lower.
  • an acrylic monofunctional monomer (b_l_2) having a reactive group and an acrylic monofunctional monomer having no reactive group which is used as necessary.
  • (B-1 2) is 1 to: 100 wt%, (b-1 1) is 0 to 99 wt%, (b-2) is 0 to 50 wt%, (b-3) is 0 to 50 wt% %, (B-4) is 0 to 50% by weight.
  • the resulting binder has a tendency to be less swellable with respect to the electrolyte while maintaining adhesion to the electrode, and the battery characteristics of the battery using the binder are more significant. There is a tendency not to decrease.
  • the initiator used in the polymerization of the acrylic polymer (B) is not particularly limited as long as the above-mentioned monomer can be polymerized.
  • the initiator used in the polymerization of the acrylic polymer (B) for example, any initiator generally used in emulsion polymerization can be used.
  • Typical initiators used in emulsion polymerization include persulfates such as persulfate, ammonium persulfate; tamenno, id-peroxide, t_petit-norehydride peroxide, benzoyl peroxide, t_ Organic peroxides such as butyl peroxide _ 2_ethylhexanoate, t_butyl peroxybenzoate, lauroyl peroxide; azo compounds such as azobisisoptyronitrile; or these persulfates, organic peroxides Zo compounds, metal ions such as iron ions, sodium sulfoxylate, honolemuanolide, sodium pyrosulfite, sodium bisulfite, L-asco And redox initiators in combination with reducing agents such as rubic acid and Rongalite. These initiators can be used alone or in combination of two or more.
  • the molecular weight of mercaptans such as t-decyl mercaptan and n-dodecyl mercaptan, and aryl compounds such as allylic sulfonic acid, methallylic sulfonic acid and soda salts thereof are adjusted as necessary. It can be used as an agent.
  • resin particles formed from an olefin polymer (A) and an acrylic polymer (B) having an internal cross-linked structure are dispersed in water.
  • an olefin polymer (A) and an acrylic polymer are placed inside the resin particles.
  • (B) may be an emulsion composition composed of resin particles containing both, and resin particles composed of an olefin polymer (A) and resin particles composed of an acrylic polymer (B).
  • the emulsion composition to contain may be sufficient.
  • the resin particles that are the constituent components of the emulsion composition may be composed of a single type of polymer, or may be a mixture of two or more types of polymers.
  • the emulsion composition containing the olefin polymer (A) and the acrylic polymer (B) in the same particle is the particles of the olefin polymer (A). Is produced by polymerizing the acrylic polymer (B) from the monomers and compounds described above using the initiator in the presence of emulsion dispersed in water. During this polymerization, an acrylic polymer (B) is formed in the resin particles containing the olefin polymer (A).
  • the emulsion composition containing the resin particles made of the olefin polymer (A) and the resin particles made of the acrylic polymer (B) is usually used in an emulsion polymerization method.
  • an acrylic polymer (B) emulsion from the initiator, monomer, and compound, and the resulting acrylic polymer (B) emulsion and olefin polymer (A) are water.
  • the olefin-based emulsion in which the particles of the olefin-based polymer (A) are dispersed in water is not particularly limited by its production method.
  • a melted resin can be forcibly broken by stirring in water or an extruder.
  • adding water to the molten and kneaded resin As shown in Japanese Patent Publication No. 42-000275, Japanese Patent Publication No. 7-008933, etc.
  • the acrylic polymer ( ⁇ ) In order to improve the stability of the particles when the acrylic polymer ( ⁇ ) is polymerized in the presence of the emulsion of the olefin-based polymer ( ⁇ ), or when the acrylic polymer ( ⁇ ) alone is produced. It is also possible to use a surfactant used in a usual emulsion polymerization method. Specific examples of the surfactant include an anionic surfactant, a nonionic surfactant, a cationic surfactant, and other reactive surfactants. These surfactants can be used singly or in combination of two or more.
  • nonionic surfactant examples include, for example, polyoxyethylene lauryl ether, polyoxyethylene octyl phenyl ether, polyoxyethylene oxyphenyl ether, and polyoxyethylene noluyl phenyl ether.
  • anionic surfactant examples include sodium dodecylbenzenesulfonate, sodium lauryl sulfate, sodium alkyldiphenyl ether sulfonate, sodium alkylnaphthalene sulfonate, sodium dialkylsulfosuccinate, stearic acid.
  • cationic surfactant examples include lauryl trimethyl ammonium chloride, stearyl trimethyl ammonium chloride, and the like.
  • the amount of the surfactant used is not particularly limited, but when producing an emulsion composition in which the olefin polymer (A) and the acrylic polymer (B) are contained in the same particle. If the amount of the surfactant used is increased, particles consisting only of the acrylic polymer (B) are produced. In addition, when the amount of the surfactant used is large, the amount of the surfactant released in the obtained binder is relatively increased, resulting in deterioration of the electrochemical cell characteristics. Therefore, the acrylic polymer (B) is polymerized in the presence of the olefin polymer (A) emulsion.
  • the amount of the surfactant used is the monomer (b-1), (b—) used for the acrylic polymer (B). It is preferably 0 to 5% by weight based on the total weight of 2), (b-3), (b-4) and compound (c).
  • the acrylic polymer (B) is polymerized at a temperature of usually 0 to 100 ° C, preferably 30 to 90 ° C, in the presence of the initiator.
  • the form of the resin particles constituting the emulsion composition is not particularly limited.
  • the shape of the particle may be a core / shell structure, a composite structure, a localized structure, or a dharma shape. Examples include a structure and a raspberry structure.
  • the weight average particle diameter of the resin particles constituting the emulsion composition is preferably 10 nm to 10 / im, more preferably 10 nm to 2 / im.
  • the particle diameter exceeds 10 / im, the adhesive strength with the active material and the metal current collector is reduced, and the electrochemical cell characteristics are deteriorated.
  • the weight ratio of the olefin polymer (A) to the acrylic polymer (B) in the emulsion composition is based on the total weight of the olefin polymer (A) and the acrylic polymer (B).
  • (A) is 95 to 30% by weight
  • (B) is 5 to 70% by weight, more preferably (A) is 95 to 50% by weight, and (B) is 5 to 50% by weight.
  • the weight ratio of (A) to (B) is in the above range, it is preferable in terms of electrochemical stability and adhesiveness.
  • constituent materials other than the binder used for the electrode for an electrochemical cell are not particularly limited.
  • the binder of the present invention when used for an electrode for a secondary battery and an electric double layer capacitor, the positive electrode active material and the binder are used for the positive electrode, and the negative electrode active material and the binder are used for the negative electrode.
  • Material strength Other materials such as carbon black, amorphous whisker carbon, graphite, etc. Conductive aids made of these carbon materials may be added.
  • Examples of the negative electrode active material for the secondary battery include metallic lithium, a lithium alloy, a carbon material that can be doubed and dedoped with lithium ions, tin oxide that can be doped and dedoped with lithium ions, Doped with niobium oxide, vanadium oxide, lithium ions' Titanium oxide that can be undope or silicon ions that can be doped or dedoped with lithium ions Transition metal nitrides can be used. Among these, carbon materials that can dope and dedope lithium ions are preferable.
  • Such carbon material may be graphite or amorphous carbon, and carbon black such as activated carbon, carbon fiber, acetylene black, ketjen black, mesocarbon microbeads, natural graphite, etc. are used. It is done.
  • the binder for an electrochemical cell electrode of the present invention may further contain a thickener such as carboxymethyl cellulose and sodium polyacrylate.
  • positive electrode active materials for secondary batteries include transition metal oxidation such as MoS, TiS, MnO, and V 2 O
  • transition metal sulfides LiCoO, LiMnO, LiMn O, LiNiO, LiNi Co O
  • a composite oxide composed of lithium and a transition metal is particularly preferable.
  • a carbon material can be used as the positive electrode.
  • a mixture of a composite oxide of lithium and a transition metal and a carbon material can be used as the positive electrode.
  • the secondary battery in order to correspond to the usage pattern of the secondary battery, is made of the above-described positive electrode, negative electrode, and separator, which are cylindrical, coin-shaped, rectangular, film-type, etc. It can be manufactured by enclosing a non-aqueous electrolyte in a shape and stacking the above-mentioned positive electrode and negative electrode inside the battery can with the separator as the center.
  • the electric double layer capacitor has an arbitrary shape such as a cylindrical shape or a coin shape so as to correspond to the usage in the battery, and the above-described electrode is provided inside the battery can.
  • the electrolyte is encapsulated in a layer that is stacked on both sides of the separator. It can be produced more.
  • the separator used in the secondary battery is a film that electrically insulates the positive electrode and the negative electrode and transmits lithium ions.
  • a porous film or a polymer electrolyte is used as the separator.
  • a porous polymer film is preferably used as the porous film, and examples of the material of the film include polyolefin, polyimide, polyvinylidene fluoride, and polyester.
  • a porous polyolefin film is preferred.
  • a porous polyethylene film, a porous polypropylene film, or a multilayer film of a porous polyethylene film and polypropylene is exemplified. be able to.
  • the surface of porous polyolefin film is coated with another resin with excellent thermal stability.
  • a porous film containing electrolytic capacitor paper inorganic ceramic powder can be used as the separator of the electric double layer capacitor.
  • Examples of the electrolyte used in the secondary battery include LiPF, LiBF, LiCIO, and LiAsF.
  • CF SO Li (CF 2 SO 4) N / Li, and the like. These electrolytes can be used alone or in combination of two or more.
  • electrolytes are used after being dissolved in an electrolyte such as a non-aqueous electrolyte (organic solvent).
  • an electrolyte such as a non-aqueous electrolyte (organic solvent).
  • Examples of the electrolyte used in the electric double layer capacitor include tetraethyl ammonium tetrafluoroborate and triethyl monomethyl ammonium tetrafluoroborate. These electrolytes can be used alone or in combination of two or more. These electrolytes are used after being dissolved in an electrolytic solution.
  • any electrolytic solution capable of exerting its performance can be used, but a non-aqueous electrolytic solution is preferred as the electrolytic solution.
  • Non-aqueous electrolytes used for secondary batteries and electric double layer capacitors include, for example, propylene carbonate, ethylene carbonate, y-butarate rataton, dimethyl sulfoxide, dimethylolene carbonate, ethinolemethinorecarbonate, Examples include organic solvents such as tinole carbonate, 1,2-dimethoxyethane, 1,2-diethoxyethane, and tetrahydrofuran. These non-aqueous electrolytes can be used alone or in combination of two or more. used.
  • a reaction vessel was charged with 83 parts of deionized water and 0.2 part of sodium dodecinolebenzenesulfonate, and the temperature was raised to 80 ° C under a nitrogen stream. After raising the temperature, 0.5 part of potassium persulfate was poured into the reaction vessel.
  • Chemipearl S650 (ethylene monounsaturated carboxylic acid copolymer, neutralized sodium hydroxide, non-volatile content 27% by weight, manufactured by Mitsui Chemicals, Inc.) 346 parts by weight in a reaction vessel under nitrogen flow And 93 parts by weight of deionized water were charged, and the temperature of the reactor was raised to 80 ° C. To the reactor at 80 ° C, 0.2 parts by weight of ammonium persulfate was further added.
  • emulsion mixture 16 parts by weight of deionized water, 16 parts by weight of 2-ethylhexyl acrylate, 10 parts by weight of hydroxyethyl methacrylate, 11 parts by weight of styrene, 3 parts by weight of divinylbenzene, and emulsifier
  • An emulsion mixture was prepared by adding 0.2 parts by weight of sodium dodecylbenzenesulfonate. This emulsified mixture was dropped into the reaction vessel maintained at 80 ° C. for 3 hours, and then further reacted at the same temperature for 2 hours to complete the polymerization.
  • the obtained emulsion composition had a nonvolatile content of 27% by weight and a pH of 9.5, and the weight average particle diameter measured by light scattering was lOOnm.
  • Chemipearl S650 a polyolefin emulsion
  • acrylic emulsion prepared in Example 5 was stirred, and distilled water was further added to prepare an emulsion composition having a solid content of 25% by weight. did.
  • olefin fin emulsion prepared in Example 1 and 325 parts of deionized water were charged into a reaction vessel, heated to 80 ° C. under a nitrogen stream, and 0.7 part of ammonium persulfate was added.
  • An emulsion mixture was prepared, and this emulsion mixture was added dropwise to the reaction vessel in 3 hours, and then kept at the same temperature for 2 hours to complete the polymerization.
  • the obtained emulsion had a non-volatile content of 27%, a pH of 9.5, and a weight average particle size of 60 nm as measured by light scattering.
  • a reaction vessel was charged with 83 parts of deionized water and 0.2 part of sodium dodecinolebenzenesulfonate, and the temperature was raised to 80 ° C under a nitrogen stream. After the temperature rise, throw 0.5 parts of potassium persulfate into the reaction vessel.
  • Epocomic R140 Mitsubishi Chemicals Co., Ltd., diglycidinoreetherified product 10 parts, styrene 50 parts, 2-ethyl hexyl acrylate is 40 parts deionized water in deionized water 40 parts
  • An emulsified mixture was prepared by using 0.4 part of soda, and this emulsified mixture was dropped into the reaction vessel in 4 hours, and then kept at the same temperature for 3 hours to complete the polymerization.
  • a polymerization solution comprising this acrylic emulsion was adjusted to pH 8 with 5% sodium hydroxide.
  • the non-volatile content of the resulting acrylic emulsion is 45. / 0 ,
  • the weight average particle diameter measured by light scattering was lOOnm.
  • Natural graphite (LF18A manufactured by Chuetsu Graphite Co., Ltd.) Thickener carboxymethylcellulose solution (Daicel Chemical Co., Ltd. CMC Daicel 1160) adjusted to 1.2% by weight with 97 parts by weight is converted to solid content 1
  • the emulsion composition prepared in Example 1 was mixed with 2 parts by weight in terms of solid content, and distilled water was further added to prepare a negative electrode mixture slurry having a solid content concentration of 50% by weight.
  • this negative electrode mixture slurry was applied to a negative electrode current collector made of a strip-shaped copper foil having a thickness of 18 / m, and then dried and compression molded to produce a negative electrode having a thickness of 70 / m.
  • a negative electrode having a thickness of 70 ⁇ m was produced in the same manner as in Example A except that the emulsion composition was changed to the emulsion prepared in Example 2.
  • a negative electrode having a thickness of 70 ⁇ m was prepared in the same manner as in Example A except that the emulsion composition was changed to the emulsion prepared in Example 3.
  • a negative electrode having a thickness of 70 ⁇ m was prepared in the same manner as in Example A except that the emulsion composition was changed to the emulsion prepared in Example 4. [0113] [Example]
  • a negative electrode having a thickness of 70 ⁇ m was prepared in the same manner as in Example A except that the emulsion composition was changed to the emulsion prepared in Example 5.
  • a negative electrode having a thickness of 70 ⁇ m was prepared in the same manner as in Example A except that the emulsion composition was changed to the emulsion prepared in Example 6.
  • a negative electrode having a thickness of 70 ⁇ m was prepared in the same manner as in Example A except that the emulsion composition was changed to the emulsion prepared in Example 7.
  • a negative electrode having a thickness of 70 ⁇ m was prepared in the same manner as in Example A except that the emulsion composition was changed to the emulsion prepared in Comparative Example 1.
  • a negative electrode having a thickness of 70 ⁇ m was prepared in the same manner as in Example A except that the emulsion composition was changed to the emulsion prepared in Comparative Example 2.
  • NMP N-methyl-2-pyrrolidone solution of natural graphite (LF18A made by Chuetsu Graphite Co., Ltd.) 98 parts by weight and non-volatile content 8% by weight (polyvinylidene fluoride) (Kureha Chemical Industry Co., Ltd.) KF Polymer # 1120) 25 parts by weight was added, and NMP for viscosity adjustment was further mixed to prepare a negative electrode mixture slurry. Next, this negative electrode mixture slurry was applied to a negative electrode current collector made of a strip-shaped copper foil having a thickness of 18 ⁇ ⁇ ⁇ , and then dried and compression molded to produce a negative electrode having a thickness of 70 / m.
  • a negative electrode having a thickness of 70 zm was prepared in the same manner as in Example A except that the emulsion composition was changed to an aqueous dispersion of SBR having a nonvolatile content of 48% by weight (SR143 manufactured by Nippon A & L Co., Ltd.).
  • Example H LiCoO (Honsho FMC Energy Systems Co., Ltd. HLC—22) 85 ⁇ 5 parts by weight, graphite 8 parts by weight, acetylene black 3 parts by weight and carboxymethylcellulose (Daicel Chemical Co., Ltd. 1160) 1.5 parts by weight in terms of solid content Then, 2 parts of the emulsion composition prepared in Example 1 in terms of solid content was added to prepare a LiCoO mixture slurry. This LiCoO mixture slurry was applied to an aluminum foil with a thickness of 20 ⁇ m, dried and compression molded to produce a positive electrode with a thickness of 70 am.
  • a positive electrode having a thickness of 70 ⁇ m was produced in the same manner as in Example H except that the emulsion composition was changed to the emulsion prepared in Example 2.
  • a positive electrode having a thickness of 70 ⁇ m was prepared in the same manner as in Example H except that the emulsion composition was changed to the emulsion prepared in Example 3.
  • a positive electrode having a thickness of 70 ⁇ m was produced in the same manner as in Example H except that the emulsion composition was changed to the emulsion prepared in Example 4.
  • a positive electrode having a thickness of 70 ⁇ m was produced in the same manner as in Example H except that the emulsion composition was changed to the emulsion prepared in Example 5.
  • a positive electrode having a thickness of 70 ⁇ m was produced in the same manner as in Example H except that the emulsion composition was changed to the emulsion prepared in Example 6.
  • a positive electrode having a thickness of 70 ⁇ m was produced in the same manner as in Example H except that the emulsion composition was changed to the emulsion prepared in Example 7.
  • a positive electrode having a thickness of 70 ⁇ m was prepared in the same manner as in Example H except that the emulsion composition was changed to the emulsion prepared in Comparative Example 1.
  • Example F A positive electrode having a thickness of 70 ⁇ m was prepared in the same manner as in Example H except that the emulsion composition was changed to the emulsion prepared in Comparative Example 2.
  • LiCoO Hydrofluorescence Chemical Energy Systems Co., Ltd. HLC_22
  • 87 parts by weight 8 parts by weight of graphite, 3 parts by weight of acetylene black and 8% by weight of non-volatile PVDF NMP solution (KF Polymer, Kureha Chemical Industry Co., Ltd.) # 1120)
  • NMP for viscosity adjustment was further mixed to prepare a LiCoO mixture slurry.
  • This LiCoO mixture slurry was applied to an aluminum foil having a thickness of 20 am, and then dried and compression molded to produce a positive electrode having a thickness of 70 am.
  • the electrodes prepared in Examples A to G and Comparative Examples A to G were cut and attached to a glass preparation with an instantaneous adhesive to fix the electrodes to obtain samples for evaluation.
  • the sample for evaluation was cut with the coating film peel strength measuring device Cycus DN20 (Daibrowintes Co., Ltd.) at the horizontal speed of 2 ⁇ m / sec.
  • the peel strength between the composite layer and the current collector interface was measured from the horizontal force.
  • Adhesiveness was evaluated by taking an average value of peel strength three times. The results are shown in Table 1.
  • EC ethylene carbonate
  • EMC ethylmethyl carbonate
  • a non-aqueous electrolyte was prepared so that 6 was dissolved and the electrolyte concentration was 1.0 mol Z liter.
  • the negative electrode made in Examples A, B, D, C, E, and Comparative Examples A and B as a negative electrode for a coin-type battery was punched into a disk shape with a diameter of 14 mm, and a coin-shaped negative electrode with a weight of 20 mg / l4 mm ci) was formed. Obtained.
  • the positive electrode produced in Examples F, G, H, I, J, and Comparative Examples C and D as a positive electrode for a coin-type battery was punched out into a disk shape having a diameter of 13.5 mm, and the weight was 42 mg / l 3.5 mm ⁇ . A coin-shaped positive electrode was obtained.
  • the above-mentioned coin-shaped negative electrode, positive electrode, and separator made of porous polypropylene film with a thickness of 25 / im and a diameter of 16 mm are placed in the negative electrode can of a stainless steel 2032 size battery can. Laminated in order.
  • a coin-type battery having a diameter of 20 mm and a height of 3.2 mm was produced.
  • Activated carbon 100 parts by weight, acetylene black (Electrochemical Co., Ltd. Denka Black) 3 parts by weight, Ketjen Black (Ketjen Black International Co., Ltd. EC600JD) 1.2 parts by weight Mix 1.5 parts by weight of the adjusted thickener carboxymethyl cellulose (Daicel Chemical Co., Ltd. CMC1160) in terms of solid content.
  • 5 parts of the emulsion composition prepared in Example 1 was mixed in terms of solid content, and distilled water was further added to prepare a mixture slurry having a solid content concentration of 50% by weight.
  • this negative electrode mixture slurry was applied to a current collector made of a strip-shaped aluminum foil having a thickness of 20 ⁇ , dried, and compression molded to produce a 70 ⁇ m thick electrode.
  • An electrode having a thickness of 70 ⁇ m was prepared in the same manner as in Example O except that the emulsion composition was changed to the emulsion prepared in Example 2.
  • An electrode having a thickness of 70 ⁇ m was prepared in the same manner as in Example O except that the emulsion composition was changed to the emulsion prepared in Example 3.
  • An electrode having a thickness of 70 ⁇ m was prepared in the same manner as in Example O except that the emulsion composition was changed to the emulsion prepared in Example 4.
  • An electrode having a thickness of 70 ⁇ m was prepared in the same manner as in Example O except that the emulsion composition was changed to the emulsion prepared in Example 5.
  • An electrode having a thickness of 70 ⁇ m was prepared in the same manner as in Example O except that the emulsion composition was changed to the emulsion prepared in Example 6.
  • An electrode having a thickness of 70 ⁇ m was prepared in the same manner as in Example O except that the emulsion composition was changed to the emulsion prepared in Example 7.
  • An electrode having a thickness of 70 ⁇ m was prepared in the same manner as in Example O except that the emulsion composition was changed to the emulsion prepared in Comparative Example 1.
  • An electrode having a thickness of 70 ⁇ m was prepared in the same manner as in Example O except that the emulsion composition was changed to a PTFE aqueous dispersion (Daikin Kogyo D-2C).
  • An electrolyte was prepared by dissolving tetraethylammonium tetrafluoroborate, an electrolyte, in propylene carbonate, so that the electrolyte concentration was 1.5 mol / liter.
  • Examples 0 to U Comparative Examples The electrodes prepared in H to J were punched into a disk shape having a diameter of 14 mm to obtain a coin-shaped electrode having a weight of 20 mg / 14 mm ⁇ .
  • the battery was charged at a constant current of 10 mA to 2.7 V for 10 minutes and then discharged at a constant current of 1 mA.
  • the capacitance was determined from the obtained charge / discharge characteristics.
  • the internal resistance was calculated according to the calculation method of standard RC-2377 established by the Japan Electronics and Information Technology Industries Association based on the charge / discharge characteristics. Table 4 shows the evaluation results for capacitors using each electrode.
  • Electrode Composition Electrostatic capacity (F / g) Internal resistance (Q F)
  • Example o Example 1 45 4.0
  • Example P Example 2 44 4.0
  • Example R Example 4 44 4.0
  • Example S Example 5 45 4.0
  • Example T Example 6 45 4.0

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Abstract

La présente invention décrit un liant pour électrodes de cellule électrochimique qui se compose d'une composition d'émulsion dans laquelle des particules de résine chacune composée d'un polymère d'oléfine (A) et d'un polymère acrylique (B) ayant une structure réticulée à l'intérieur sont dispersées dans de l'eau. Le liant pour électrodes de cellule électrochimique présente une adhérence suffisante à un collecteur métallique, à un matériau actif d'électrode positive et à un matériau actif d'électrode négative, et permet d'améliorer les caractéristiques de décharge rapide et les caractéristiques de cycle.
PCT/JP2007/058867 2006-04-26 2007-04-24 Liant pour électrode de cellule électrochimique WO2007125924A1 (fr)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008066274A (ja) * 2006-08-08 2008-03-21 Hitachi Chem Co Ltd 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
JP2008077837A (ja) * 2006-08-22 2008-04-03 Mitsui Chemicals Inc 二次電池または電気二重層キャパシタ用バインダー
WO2012115096A1 (fr) * 2011-02-23 2012-08-30 日本ゼオン株式会社 Électrode négative de cellule secondaire, cellule secondaire, composition de pâte pour une électrode négative et procédé de production d'une électrode négative de cellule secondaire
US20140205904A1 (en) * 2011-08-30 2014-07-24 Zeon Corporation Binder composition for secondary battery negative electrode, negative electrode for secondary battery, negative electrode slurry composition, manufacturing method, and secondary battery
JP2017033871A (ja) * 2015-08-05 2017-02-09 株式会社豊田自動織機 負極及びリチウムイオン二次電池並びにその製造方法
JP2017510044A (ja) * 2014-04-01 2017-04-06 ピーピージー・インダストリーズ・オハイオ・インコーポレイテッドＰＰＧ Ｉｎｄｕｓｔｒｉｅｓ Ｏｈｉｏ，Ｉｎｃ． リチウムイオン蓄電デバイス用の電極バインダー組成物
WO2018135562A1 (fr) 2017-01-20 2018-07-26 三井化学株式会社 Corps stratifié et tuyau d'enroulement de ruban
WO2018181290A1 (fr) 2017-03-29 2018-10-04 三井化学株式会社 Stratifié et procédé de production associé

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102473921A (zh) * 2009-08-07 2012-05-23 Jsr株式会社 电化学器件和粘合剂组合物

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001283853A (ja) * 2000-03-30 2001-10-12 Nippon Zeon Co Ltd アルカリ二次電池負極用バインダー組成物およびその利用
JP2002042819A (ja) * 2000-07-31 2002-02-08 Nippon Zeon Co Ltd 二次電池電極用バインダー、二次電池電極および二次電池
JP2002050360A (ja) * 2000-08-07 2002-02-15 Nippon Zeon Co Ltd リチウムイオン二次電池電極用バインダー及びその利用
JP2002256129A (ja) * 2000-11-10 2002-09-11 Sanyo Chem Ind Ltd 電気化学素子の電極用結合剤および電極の製造方法
WO2006085416A1 (fr) * 2005-02-10 2006-08-17 Hitachi Chemical Company, Ltd. 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
JP5083109B2 (ja) * 2008-08-07 2012-11-28 富士通株式会社 ネットワーク情報収集装置、ネットワーク情報提供装置、及びネットワーク計測システム

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01161078A (ja) * 1987-12-18 1989-06-23 Toagosei Chem Ind Co Ltd エマルジョン型粘着剤の製造方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001283853A (ja) * 2000-03-30 2001-10-12 Nippon Zeon Co Ltd アルカリ二次電池負極用バインダー組成物およびその利用
JP2002042819A (ja) * 2000-07-31 2002-02-08 Nippon Zeon Co Ltd 二次電池電極用バインダー、二次電池電極および二次電池
JP2002050360A (ja) * 2000-08-07 2002-02-15 Nippon Zeon Co Ltd リチウムイオン二次電池電極用バインダー及びその利用
JP2002256129A (ja) * 2000-11-10 2002-09-11 Sanyo Chem Ind Ltd 電気化学素子の電極用結合剤および電極の製造方法
WO2006085416A1 (fr) * 2005-02-10 2006-08-17 Hitachi Chemical Company, Ltd. 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
JP5083109B2 (ja) * 2008-08-07 2012-11-28 富士通株式会社 ネットワーク情報収集装置、ネットワーク情報提供装置、及びネットワーク計測システム

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008066274A (ja) * 2006-08-08 2008-03-21 Hitachi Chem Co Ltd 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
JP2008077837A (ja) * 2006-08-22 2008-04-03 Mitsui Chemicals Inc 二次電池または電気二重層キャパシタ用バインダー
WO2012115096A1 (fr) * 2011-02-23 2012-08-30 日本ゼオン株式会社 Électrode négative de cellule secondaire, cellule secondaire, composition de pâte pour une électrode négative et procédé de production d'une électrode négative de cellule secondaire
US20140205904A1 (en) * 2011-08-30 2014-07-24 Zeon Corporation Binder composition for secondary battery negative electrode, negative electrode for secondary battery, negative electrode slurry composition, manufacturing method, and secondary battery
US10224549B2 (en) * 2011-08-30 2019-03-05 Zeon Corporation Binder composition for secondary battery negative electrode, negative electrode for secondary battery, negative electrode slurry composition, manufacturing method, and secondary battery
JP2017510044A (ja) * 2014-04-01 2017-04-06 ピーピージー・インダストリーズ・オハイオ・インコーポレイテッドＰＰＧ Ｉｎｄｕｓｔｒｉｅｓ Ｏｈｉｏ，Ｉｎｃ． リチウムイオン蓄電デバイス用の電極バインダー組成物
JP2017033871A (ja) * 2015-08-05 2017-02-09 株式会社豊田自動織機 負極及びリチウムイオン二次電池並びにその製造方法
WO2018135562A1 (fr) 2017-01-20 2018-07-26 三井化学株式会社 Corps stratifié et tuyau d'enroulement de ruban
EP4230398A1 (fr) 2017-01-20 2023-08-23 Mitsui Chemicals, Inc. Stratifié et tuyau d'enroulement de bande
WO2018181290A1 (fr) 2017-03-29 2018-10-04 三井化学株式会社 Stratifié et procédé de production associé

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