Binder composition for power storage devices

2:

• The binder composition according to claim 1, wherein a mass ratio of the first recurring unit M1 to the second recurring unit M2 in the polymer is from 0.3 to 30.

3:

• The binder composition according to claim 1, wherein the recurring unit derived from the unsaturated carboxylic acid ester comprising an alicyclic hydrocarbon group is a recurring unit derived from at least one selected from the group consisting of a monocyclic cycloalkyl ester, a bicyclic cycloalkyl ester, a cyclic hydrocarbon ester comprising 3 or more rings, and a spirocyclic cycloalkyl ester of an unsaturated carboxylic acid.

4:

• The binder composition according to claim 1, wherein the polymer further comprises 1 to 15 mass % of a recurring unit derived from an unsaturated carboxylic acid.

5:

• The binder composition according to claim 1, wherein the polymer further comprises 1 to 50 mass % of a recurring unit derived from a monomer comprising a fluorine atom.

6:

• The binder composition according to claim 1, wherein the polymer further comprises 45 to 75 mass % of a recurring unit derived from at least one selected from the group consisting of a conjugated diene compound and an aromatic vinyl compound and no recurring unit derived from a monomer comprising a fluorine atom.

7:

• An electrode slurry for power storage devices, comprising:
• the binder composition according to claim 1 and an electrode active material.

8:

• An electrode for power storage devices, comprising:
• a collector and
• a layer formed by coating the electrode slurry according to claim 7 on a surface of the collector and drying the slurry.

9:

• A protective film slurry for power storage devices, comprising:
• the binder composition according to claim 1 and a filler.

10:

• A protective film for power storage devices, formed from the protective film slurry according to claim 9.

11:

• A separator, comprising
• the protective film according to claim 10.