Solid electrolyte and lithium battery including the same
First Claim
Patent Images
1. A solid electrolyte material represented by Formula 1:
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Li1+2xZn1−
xPS4
Formula 1wherein 0.05≤
x<
1,wherein the solid electrolyte material has an I-4 crystal structure, andwherein the solid electrolyte material has a peak at about 18°
two-theta, when analyzed by X-ray diffraction using CuKα
radiation.
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Abstract
A solid electrolyte material represented by Formula 1:
L1+2x(M1)1−x(M2)(M3)4 Formula 1
wherein 0.25<x<1, L is at least one element selected from a Group 1 element, M1 is at least one element selected from a Group 2 element, a Group 3 element, a Group 12 element, and a Group 13 element, M2 is at least one element selected from a Group 5 element, a Group 14 element, and a Group 15 element, and M3 is at least one element selected from a Group 16 element, and wherein the solid electrolyte material has an I-4 crystal structure.
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Citations
24 Claims
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1. A solid electrolyte material represented by Formula 1:
-
Li1+2xZn1−
xPS4
Formula 1wherein 0.05≤
x<
1,wherein the solid electrolyte material has an I-4 crystal structure, and wherein the solid electrolyte material has a peak at about 18°
two-theta, when analyzed by X-ray diffraction using CuKα
radiation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A solid electrolyte material represented by Formula 1:
-
Li1+2xZn1−
xPS4
Formula 1wherein 0.05≤
x<
1, andwherein [PS4]3−
anions of the solid electrolyte define a body centered cubic sublattice. - View Dependent Claims (21, 22, 23)
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24. A solid electrolyte material prepared by:
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contacting Li2S, ZnS, and P2S5 to obtain LiZnPS4; and combining the LiZnPS4 and amorphous Li3PS4 to form the solid electrolyte material, wherein the solid electrolyte material has an I-4 crystal structure, wherein the solid electrolyte material has an ionic conductivity of greater than 2×
10−
4 Siemen per centimeter, andwherein the solid electrolyte material has a peak at position of about 18°
±
0.50 two-theta, when analyzed by X-ray diffraction using CuKα
radiation.
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Specification