abstract |
Provided is a binder composition for an electrochemical device, which is excellent in binding properties and can form a functional layer capable of improving the rate characteristics and cycle characteristics of an electrochemical device (for example, a secondary battery). The binder composition for an electrochemical element of the present invention comprises a binder and a nitrogen-based organic compound, and the binder comprises a carboxyl group, a hydroxyl group, a cyano group, an amino group, an epoxy group, an oxazoline group, an isocyanate group, And a polymer having at least one functional group selected from the group consisting of sulfonic acid groups, and the nitrogen-based organic compound is selected from the group consisting of an azo group, a hydrazino group, a hydrazo group and a nitroso group. It has one type of functional group, a 5% mass loss temperature is 140 ° C. or more, and a molecular weight of 80 or more and 1000 or less. |