Lithium cell having a solid electrolyte constituted by a conductive vitreous compound

Patent · Tue Oct 23 04:00:00 EDT 1984

OSTI ID:5995569

Gabano, J P; Duchange, J P

The electrolyte is constituted by a conductive vitreous compound having the formula aP/sub 2/S/sub 5/, bLi/sub 2/S, cLiX, where X represents chlorine, bromine, or iodine, and where a, b, and c are numbers chosen so that the ratio b/(a+b) lies between 0.61 and 0.70, and so that the ratio c/(a+b+c) is less than or equal to a limit corresponding to the solubility in vitreous phase of LiX in the compound aP/sub 2/S/sub 5/, bLi/sub 2/S, with the positive active material comprising 20% to 80% by volume solid electrolyte together with an electron conductor, the improvement wherein a substance chosen from the halogens and the chalcogens is included in the electrolyte in order to produce an in situ chemical reaction at the lithium electrolyte interface thereby creating an ionically conductive bonding layer comprising a lithium halogenide or chalcogenide.

• Assignee: GIPELEC, FR
• Patent Number(s): US 4478920
• OSTI ID: 5995569
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ALKALI METAL COMPOUNDS
CHALCOGENIDES
CHEMICAL COMPOSITION
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTROLYTES
LITHIUM COMPOUNDS
LITHIUM SULFIDES
LITHIUM-CHLORINE BATTERIES
LITHIUM-SULFUR BATTERIES
METAL-GAS BATTERIES
METAL-NONMETAL BATTERIES
POTASSIUM COMPOUNDS
POTASSIUM SULFIDES
SOLID ELECTROLYTES
SULFIDES
SULFUR COMPOUNDS