Electrical storage device electrode binder composition, electrical storage device electrode slurry, electrical storage device electrode, and electrical storage device
AssigneeJsr Corporation
InventorsHironori Kitaguchi, Yoshiharu Otsuka, Nobuyuki Fujihara, Tatsuaki Honda
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Abstract
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.
Claims20
An electrical storage device electrode binder composition comprising (A) a polymer, (B) a carboxylic acid or a salt thereof, and (C) a liquid medium, the polymer (A) being diene polymer particles that comprise (a) a repeating unit derived from a conjugated diene compound, (b) a repeating unit derived from an aromatic vinyl compound, (c) a repeating unit derived from a (meth)acrylate compound, and (d) a repeating unit derived from an unsaturated carboxylic acid, and the binder composition having a concentration of the carboxylic acid or a salt thereof (B) of 20 to 1000 ppm,
- wherein the carboxylic acid or a salt thereof (B) is selected from the group consisting of acrylic acid, methacrylic acid, crotonic acid, maleic acid, fumaric acid, itaconic acid, malonic acid, citric acid, acetic acid, and salts thereof, and
- wherein the electrical storage device electrode binder composition is free of a fluoropolymer.
Dependencies are inferred from the claim text.