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

Claim 5:
6. 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 Li2S3, Li2S5, Li2S7, Li2S9, Li2S10, Na2S1, Na2S2, Na2S3, Na2S4, Na2S5, Na2S6, Na2S7, Na2S8, Na2S9, Na2S10, K2S1, K2S2, K2S3, K2S4, K2S5, K2S6, K2S7, K2S8, K2S9, or K2S10.