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US 6,277,524 B1Granted
Lithium-ion-conductive solid electrolyte and solid-electrolyte lithium battery
AssigneesToyota Jidosha Kabushiki Kaisha, Genesis Research Institute, Inc.
InventorRyoji Kanno
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Abstract
A lithium-ion-conductive solid electrolyte includes a lithium-ion-conductive substance expressed by a general formula Li2S-GeS2-X wherein “X” is at least one member selected from the group consisting of Ga2S3 and ZnS, or Li2S-SiS2-P2S5. It is superb in terms of stability and safety at elevated temperatures, since it is a crystalline solid of high ion conductivity. It can be applied to a solid electrolyte for lithium batteries.
Claims16
A lithium-ion-conductive solid electrolyte, comprising:
- a crystalline lithium-ion-conductive substance expressed by a general formula Li2S-GeS2-X wherein “X” is at least one member selected from the group consisting of Ga2S3 and ZnS.
A lithium-ion-conductive solid electrolyte, comprising:
- a crystalline lithium-ion-conductive substance expressed by a general formula Li2S-SiS2-P2S5.
A solid-electrolyte lithium battery comprising:
- a solid electrolyte including a crystalline lithium-ion-conductive substance,
- the crystalline lithium-ion-conductive substance expressed by at least one general formula selected from the group consisting of Li2S-GeS2-X wherein “X” is at least one member selected from the group consisting of Ga2S3 and ZnS, and Li2S-SiS2-P2S5;
- a cathode;
- and
- an anode.
2 more elements
Dependencies are inferred from the claim text.