A solid electrolyte according to one aspect of the present invention contains, as constituent elements, lithium, phosphorus, M, sulfur, and a halogen, with M being at least one element selected from the group consisting of silicon, germanium, and tin, wherein in an X-ray diffraction pattern obtained by using CuKα radiation, a diffraction peak A is observed within the diffraction angle 2θ range of 20.1°±0.3°, a diffraction peak B is observed within the diffraction angle 2θ range of 29.4°±0.3°, and a diffraction peak C is observed within the diffraction angle 2θ range of 33.3°±0.3°; and formula (1) and formula (2A) are satisfied. In formula (1) and formula (2A), P, M, and S are contents on a molar basis of phosphorus, M, and sulfur in the solid electrolyte, respectively. (1): 0.12 ≤ M/(P+M) ≤ 0.45 (2A): 0.94 ≤ S/4(P+M) ≤ 1.00
- 출원번호 : JP2025/030646
- 출원인 : GS YUASA INTERNATIONAL LTD.
- 특허번호 :
- IPC : H01B-001/06(2006.01);H01B-001/10(2006.01);H01B-013/00(2006.01);H01G-011/56(2013.01);H01M-010/052(2010.01);H01M-010/0562(2010.01);