Lithium-ion-conductive solid electrolyte and solid-electrolyte lithium battery
First Claim
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1. 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.
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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.
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Citations
16 Claims
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1. 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.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A lithium-ion-conductive solid electrolyte, comprising:
a crystalline lithium-ion-conductive substance expressed by a general formula Li2S-SiS2-P2S5. - View Dependent Claims (14)
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15. A solid-electrolyte lithium battery comprising:
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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. - View Dependent Claims (16)
the cathode includes a mixture of a cathode active material and the crystalline lithium-ion conductive substance; - and
the anode includes a mixture of an anode active material and the crystalline lithium-ion conductive substance.
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Specification