公开(公告)号：US20230074355A1

公开(公告)日：2023-03-09

申请号：US17796945

申请日：2021-03-08

申请人： Mitsui Mining & Smelting Co., Ltd.

发明人： Jun OMURA ,  Akihiro KONDO ,  Hideo UESUGI

IPC分类号： H01M4/525 ,  H01M4/485 ,  H01M4/505 ,  H01M10/0525

摘要： An active material includes: a compound A containing elemental Li, an element M, and elemental O, where the element M represents one or more elements selected from elemental Ni, elemental Co, and elemental Mn; and a compound B containing elemental Li, elemental Nb, and elemental O; wherein, in a Raman spectrum obtained by Raman spectroscopy on the active material, the ratio between SPA and SPB, SPB/SPA, satisfies 0

公开(公告)号：US20220173428A1

公开(公告)日：2022-06-02

申请号：US17434190

申请日：2020-03-16

申请人： Mitsui Mining & Smelting Co., Ltd.

发明人： Taizo MORINAKA ,  Hideo UESUGI

IPC分类号： H01M10/056 ,  H01M10/0525 ,  C01B17/22

摘要： A sulfide solid electrolyte contains elemental lithium (Li), elemental phosphorus (P), and elemental sulfur (S). The sulfide solid electrolyte has at least one peak observed in the chemical shift range of 3.4 ppm to 4.8 ppm in a spectrum obtained by 1H-NMR measurement. It is preferable that the sulfide solid electrolyte has an argyrodite-type crystal structure. It is also preferable that the sulfide solid electrolyte contains an ester compound of a carboxylic acid and an alcohol.