LITHIUM IONIC CONDUCTOR AND FABRICATION METHOD THEREFOR, AND ALL-SOLID LITHIUM SECONDARY BATTERY
First Claim
Patent Images
1. A lithium ionic conductor, comprising lithium (Li), phosphorus (P), boron (B) and sulfur (S) as constituent elements and comprising a crystal structure that boron (B) is substituted for part of phosphorus (P) in a β
- structure of Li3PS4.
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Abstract
A lithium ionic conductor (solid electrolyte) contains lithium (Li), phosphorus (P), boron (B) and sulfur (S) as constituent elements and has a crystal structure that boron (B) is substituted for part of phosphorus (P) in the β structure of Li3PS4.
8 Citations
11 Claims
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1. A lithium ionic conductor, comprising lithium (Li), phosphorus (P), boron (B) and sulfur (S) as constituent elements and comprising a crystal structure that boron (B) is substituted for part of phosphorus (P) in a β
- structure of Li3PS4.
- View Dependent Claims (2, 3, 4, 5)
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6. An all-solid lithium secondary battery, comprising:
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a positive electrode; a negative electrode; and a solid electrolyte provided between the positive electrode and the negative electrode, and containing lithium (Li), phosphorus (P), boron (B) and sulfur (S) as constituent elements, the solid electrolyte having a crystal structure that boron (B) is substituted for part of phosphorus (P) in a β
structure of Li3PS4. - View Dependent Claims (7, 8, 9, 10)
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11. A fabrication method for a lithium ionic conductor, comprising:
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mixing lithium (Li), phosphorus (P), boron (B) and sulfur (S), melting the mixture by heating and then cooling the mixture to form a burned body; and reducing the burned body to powder and then burning the powder again at a temperature at which the powder does not melt to fabricate a lithium ionic conductor having a crystal structure that boron (B) is substituted for part of phosphorus (P) in a β
structure of Li3PS4.
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Specification