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US 10,707,523 B2Granted
Solid electrolyte, lithium battery, battery pack, and vehicle
AssigneeKabushiki Kaisha Toshiba
InventorsYasuhiro Harada, Tomoe Kusama, Norio Takami, Kazuomi Yoshima
Life of this patent
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Abstract
According to one embodiment, there is provided a solid electrolyte including an oxide represented by General Formula Li1+2xM12−x(Ca1−yM2y)x(PO4)3. In the General Formula above, M1 is at least one selected from the group consisting of Zr and Hf. M2 is at least one selected from the group consisting of Sr and Ba. x satisfies 0<x<2. y satisfies 0<y≤1.
Claims14
A solid electrolyte comprising:
- an oxide of formula Li1+2x M12−x(Ca1−y M2y)x(PO4)3,
- wherein M1 is at least one selected from the group consisting of Zr and Hf, M2 is at least one selected from the group consisting of Sr and Ba, x satisfies 0.1≤x≤0.5, and y satisfies 0.05≤y≤1,
- wherein the oxide comprises a crystal structure of a rhombohedral structure, and lattice constants of the crystal structure satisfy 8.85 Å≤a≤8.89 Å and 22.13 Å≤c≤22.21 Å.
Dependencies are inferred from the claim text.