Patent ID: 6210831
Filing Date: 2001-04-03
Classification: H01M,Y02E,Y10S,Y10T

Abstract:
A solid composite cathode for use in an electric current producing cell, said solid composite cathode comprising:(a) an electroactive sulfur-containing material which, in its oxidized state, comprises a polysulfide moiety of the formula, --S.sub.m --, wherein m is an integer from 3 to 10; and(b) a non-electroactive particulate non-fibrous material having a strong physical adsorption of soluble polysulfides, wherein the physical adsorption by said particulate non-fibrous material is characterized by physical adsorption of at least 87% of the lithium octasulfide in a 0.03 M solution of lithium octasulfide in tetraglyme with said particulate non-fibrous material present at the weight ratio of said particulate non-fibrous material to lithium octasulfide of 6.2 to 1.