Electrode binder composition for nonaqueous electrolyte battery, electrode for nonaqueous electrolyte battery, and nonaqueous electrolyte battery
AssigneeZeon Corporation
InventorToshiyuki Sekine
Life of this patent
Estimating the term…
Abstract
Provided is a binder composition for electrodes that has high stability in the form of a liquid composition dissolved or dispersed in a solvent and can improve cycle property of a non-aqueous electrolyte battery. The binder composition used is a binder composition including a polymer A containing 80% by weight or more and 99.9% by weight or less of a repeating unit derived from a monomer including a nitrile group and 0.1% by weight or more and 20% by weight or less of a repeating unit derived from an ethylenically unsaturated compound, wherein a weight-average molecular weight of the polymer A is 500,000 to 2,000,000, and a molecular weight distribution (Mw/Mn) of the polymer A is 13 or smaller.
Claims12
A binder composition for a positive electrode of a non-aqueous electrolyte battery, the binder composition comprising a polymer A containing 80% by weight or more and 99.9% by weight or less of a repeating unit derived from a monomer including a nitrile group and 0.1% by weight or more and 20% by weight or less of a repeating unit derived from a methacrylic acid, wherein
- a weight-average molecular weight of the polymer A is 500,000 to 2,000,000, and
- a molecular weight distribution (Mw/Mn) of the polymer A is 13 or smaller.
Dependencies are inferred from the claim text.