Jsr Corporation

Nobuyuki Fujihara

Hironori Kitaguchi

Yoshiharu Otsuka

Hiroyuki Miyauchi

Tatsuaki Honda

Tatsuya Abe

Maki Maegawa

Yoshiharu Ootsuka

A binder composition for power storage devices comprising a polymer which contains at least 3 to 40 mass % of a first recurring unit derived from an unsaturated carboxylic acid ester having an alicyclic hydrocarbon group and 1 to 40 mass % of a second recurring unit derived from an &#x3b1;, &#x3b2;-unsaturated nitrile compound based on 100 mass % of the total of all recurring units.

Binder composition for power storage devices

An electrical storage device includes a cathode, an anode, a protective film that is provided between the cathode and the anode, and an electrolyte solution, the protective film including a polymer that includes a repeating unit derived from a fluorine-containing monomer, and a repeating unit derived from an unsaturated carboxylic acid.

Protective film and composition for preparing the same, slurry, and electrical storage device

An electrode binder composition that is used to produce an electrode used for an electrical storage device, includes (A) a polymer, (B) a carboxylic acid or a salt thereof, and (C) a liquid medium, and has a concentration of the carboxylic acid or a salt thereof (B) of 20 to 1000 ppm.

Electrical storage device electrode binder composition, electrical storage device electrode slurry, electrical storage device electrode, and electrical storage device

A binder composition for the positive electrode of an electric storage device. The composition contains polymer alloy particles composed of: a polymer (A) having a recurring unit derived from vinylidene fluoride, ethylene tetrafluoride, propylene hexafluoride, or mixtures thereof; a polymer (B) having a recurring unit derived from an unsaturated carboxylic acid ester; and water. The average diameter of the polymer alloy particles is 50 to 400 nm. The polymer alloy particles are synthesized by absorbing a monomer (b) to the polymer (A) and polymerizing the monomer (b) to synthesize the polymer (B). The monomer (b) is an unsaturated carboxylic acid ester, or a mixture of an unsaturated carboxylic acid ester and one or more of the following monomers: an &#x3b1;,&#x3b2;-unsaturated nitrile compound, an unsaturated carboxylic acid, a conjugated diene compound, styrene, &#x3b1;-methylstyrene, p-methylstyrene, vinyltoluene, chlorostyrene, divinylbenzene, a carboxylic vinyl ester, and an acid anhydride of an ethylenically unsaturated dicarboxylic acid.

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Nobuyuki Fujihara