Patent ID: 11916223
Assignee: GLOBAL GRAPHENE GROUP, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 4:
5. A rechargeable alkali metal-sulfur cell selected from lithium-sulfur cell, sodium-sulfur cell, or potassium-sulfur cell, said alkali metal-sulfur cell comprising:
(a) an anode active material layer and an optional anode current collector supporting said anode active material layer;
(b) a cathode active material layer and an optional cathode current collector supporting said cathode active material layer; and
(c) an electrolyte with an optional porous separator layer in ionic contact with said anode active material layer and said cathode active material layer;
wherein said cathode active material layer contains multiple particulates of a sulfur-containing material selected from a metal sulfide and wherein at least one of said particulates has a diameter or thickness from 100 nm to 50 μm and comprises one or a plurality of particles of said sulfur-containing material that are partially or totally encapsulated by, embedded in, dispersed in, or bonded by an electrically and ionically conducting network of cross-linked polymer chains having a lithium ion conductivity from 10−8 to 5×10−2 S/cm and an electron conductivity from 10−8 to 103 S/cm, wherein said metal sulfide contains MxSy, wherein x is an integer from 1 to 3 and y is an integer from 1 to 10, and M is a metal element selected from Na, K, Mg, Zn, Cu, Ti, Ni, Co, Fe, or Al.