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U.S. Department of Energy
Office of Scientific and Technical Information

Electrochemical cell including a solid electrolyte made from a cation conductive vitreous compound

Patent ·
OSTI ID:6408668
An electrochemical cell having a lithium based negative active material, an electrolyte in the form of a vitreous cation conductive compound having a formula: aP/sub 2/S/sub 5/, bLi/sub 2/S, cLiX, where X stands for chlorine, bromine or iodine, and a, b, and c are numbers chosen in such a manner that b/(a+b) lies in the range 0.61 to 0.70 and c/(a+b+c) is less than or equal to the maximum solubility in the vitreous phase of LiX in the compound aP/sub 2/S/sub 5/, bLi/sub 2/S, and a positive active material in the form of a compressed powder with particles of the electrolyte dispersed throughout said positive active material. The positive active material is chosen from the group constituted by: (CH /SUB x/ ; Cu /SUB d/ O(PO/sub 4/)/sub 2/; V/sub 6/O/sub 13/; V/sub 2/S/sub 5/; MoS/sub 3/; CuS; S; CuO; Cu/sub 3/B/sub 2/O/sub 6/; FeS/sub 2/; Pb/sub 3/O/sub 4/; Bi/sub 2/O/sub 3/; PbO; BiO(CrO/sub 4/)/sub 2/; AgBi(CrO/sub 4/)/sub 2/; I/sub 2/; MoO/sub 3/; WO/sub 3/; TiS/sub 2/; NiPS/sub 3/; copper bismuthate; and lead bismuthate.
Assignee:
Societe Anonyme dite GIPELEC (France)
Patent Number(s):
US 4444857
OSTI ID:
6408668
Country of Publication:
United States
Language:
English