초록

A solid polymer electrolyte (SPE), solid polymer electrolyte electrode, and method for forming from cationic exchange perfluorocarbon copolymer. Disclosed are solution techniques for forming SPEs and SPE electrodes using fluorocarbon vinyl ether copolymers.

대표청구항 ▼

A method for making a copolymeric perfluorocarbon solid polymer electrolyte comprising the steps of: (i) blending copolymeric perfluorocarbon in an equivalent weight range of from about 900 to about 1500 with a solvating dispersion media; (ii) heating the blend to a temperature of between about 50°C

A method for making a copolymeric perfluorocarbon solid polymer electrolyte comprising the steps of: (i) blending copolymeric perfluorocarbon in an equivalent weight range of from about 900 to about 1500 with a solvating dispersion media; (ii) heating the blend to a temperature of between about 50°C. and 250°C.; (iii) maintaining that temperature until a desired quantity of copolymer becomes solvated; (iv) cooling sufficiently to form a gelatinous dispersion and forming said dispersion into a desired shape; (v) cooling further until some of said dispersion media separate from the dispersion by syneresis, forming droplets within the dispersion; (vi) continuing to cool at least until said droplets crystallize within said dispersion; (vii) removing at least a portion of the unseparated dispersion media at a temperature below the melting point of the crystallized droplets; (viii) hydrolyzing the shaped dispersion; and (ix) removing the crystallized droplets to leave a porous, shaped, copolymeric perfluorocarbon solid polymer electrolyte.