Patent ID: 7355839

Claim:
An electrode for an electrochemical capacitor comprising an electrode, a collector, an electrolyte solution and a separator, wherein said electrode contains at least a conductive material and a polyimide silicone of formula (1) having an average molecular weight of 5,000-150,000: wherein, X is at least one moiety of a tetravalent organic group of formula (2), (3), (4), (5), (6) or (7), Y is an organic group having an ether linkage of formula (8) or (9), and Z is a siloxane diamine residue of formula (15), wherein the proportion of the siloxane diamine residue of formula (15) in the polyimide silicone of formula (1) is 10 mass % or less, wherein, B in formula(8) is a divalent organic group of formula (10), (11), (12), (13) or (14), wherein, a in formula (15) is an integer of 1-20; and m, n in formula (1) are numbers satisfying the relations 0.8 â‰¦m /(m+n)â‰¦0.99 and 0.01 â‰¦n /(m+n)â‰¦0.2.