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

1. An electrode binder composition that is used to produce an electrode used for an electrical storage device, the binder composition comprising:

(A) a polymer, wherein the polymer (A) is fluorine-comprising polymer particles comprising

(Ma) a repeating unit of a fluorine-comprising ethylene monomer, and

(Mb) a repeating unit of an unsaturated carboxylic acid ester;

(B) a compound of formula (1):

wherein:

R 1 and R 2 are each independently a hydrogen atom, a halogen atom, or a monovalent alkyl group; and

n is an integer from 0 to 5; and

(C) a liquid medium,

wherein a concentration of the compound (B) in the electrode binder composition is from 5 to 500 ppm.

2. The electrode binder composition of claim 1 , wherein the fluorine-comprising polymer particles have only one endothermic peak within a temperature range of −50 to +250° C. when subjected to differential scanning calorimetry (DSC) in accordance with JIS K 7121.

3. The electrode binder composition of claim 2 , wherein the fluorine-comprising polymer particles have the only one endothermic peak within a temperature range of −30 to +30° C.

4. The electrode binder composition of claim 1 , wherein the fluorine-comprising polymer particles have a number average particle size of 50 to 400 nm.

5. An electrode slurry, comprising:

the electrode binder composition of claim 1 ; and

an electrode active material.

6. An electrode, comprising:

a collector; and

a layer that is formed by applying the electrode slurry of claim 5 to a surface of the collector, and drying the slurry.

7. An electrical storage device, comprising the electrode of claim 6 .