Patent ID: 7282528

Claim:
An electrode additive comprising an aqueous fluoropolymer dispersion, wherein the aqueous fluoropolymer dispersion is stabilized by the use of a nonionic surfactant expressed by general formula 1 in an amount of 3 to 20 wt % with respect to the polymer solids: H—O—(CH 2 CH 2 O) q -(A1) p -(CH 2 CH 2 O) r —H (1) (wherein A1 is —CH(CH 3 )CH 2 O— or —CH(CH 3 )—CH 2 CH 2 O—; p is an integer from 0 to 400, q is an integer from 1 to 400, r is an integer from 0 to 400; 5≦p+q+r≦1000, 1≦(q+r)/p≦800 (when p is not 0); when p=0, r=0, and when 1≦p≦400, 0≦r≦400).