SULFIDE SOLID ELECTROLYTE GLASS, METHOD FOR PRODUCING SULFIDE SOLID ELECTROLYTE GLASS, AND LITHIUM SOLID STATE BATTERY
First Claim
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1. A sulfide solid electrolyte glass comprising Li3PS4, wherein Li4P2S7 is not detected by 31P NMR measurement and a content of Li2S as determined by XPS measurement is 3% by mol or less.
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Abstract
An object of the present invention is to provide a sulfide solid electrolyte glass producing a tiny amount of hydrogen sulfide. The present invention attains the above-mentioned object by providing a sulfide solid electrolyte glass including Li3PS4, characterized in that Li4P2S7 is not detected by 31P NMR measurement and the content of Li2S as determined by XPS measurement is 3% by mol or less.
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Citations
9 Claims
- 1. A sulfide solid electrolyte glass comprising Li3PS4, wherein Li4P2S7 is not detected by 31P NMR measurement and a content of Li2S as determined by XPS measurement is 3% by mol or less.
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3. A method for producing a sulfide solid electrolyte glass comprising Li3PS4, comprising steps of:
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a preparation step of preparing a raw material composition containing Li2S and P2S5; and an amorphizing step of amorphizing the raw material composition by amorphization treatment, wherein the raw material composition contains Li2S and P2S5 at a ratio so as to allow the sulfide solid electrolyte glass such that Li4P2S7 is not detected by 31P NMR measurement and a content of Li2S as determined by XPS measurement is 3% by mol or less. - View Dependent Claims (4, 6)
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5. A method for producing a sulfide solid electrolyte glass comprising Li3PS4, comprising steps of:
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a preparation step of preparing a raw material composition containing Li2S and P2S5 at a molar ratio of xLi2S.(100−
x) P2S5 (x satisfies 73<
x<
75); andan amorphizing step of amorphizing the raw material composition by amorphization treatment. - View Dependent Claims (8)
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7. (canceled)
Specification