公开(公告)号：US10825574B2

公开(公告)日：2020-11-03

申请号：US16069439

申请日：2017-01-13

申请人： MITSUBISHI GAS CHEMICAL COMPANY, INC. ,  TOHOKU TECHNO ARCH CO., LTD.

发明人： Masahiro Shimada ,  Tomohiro Ito ,  Aki Katori ,  Atsushi Unemoto ,  Shinichi Orimo

IPC分类号： H01B1/12 ,  C01D15/04 ,  H01M10/0562 ,  H01B1/06 ,  H01B13/00 ,  H01B1/20 ,  H01M4/134 ,  H01M10/0525 ,  H01M4/02

摘要： The present invention provides a manufacturing method suitable for manufacturing, in large amounts, an ionic conductor that is superior in terms of various properties such as ion conductivity. According to one embodiment of the present invention, provided is a method for manufacturing an ionic conductor, said method including: mixing, using a solvent, LiBH4 and a lithium halide represented by formula (1), LiX (1) (in formula (1), X represents one selected from the group consisting of halogen atoms); and removing the solvent at 60-280° C. Ionic conductors obtained with this manufacturing method can be used as, for example, solid electrolytes for all-solid-state batteries.

公开(公告)号：US11489194B2

公开(公告)日：2022-11-01

申请号：US16641164

申请日：2018-08-16

申请人： MITSUBISHI GAS CHEMICAL COMPANY, INC.

发明人： Aki Katori ,  Tomohiro Ito ,  Masahiro Shimada ,  Kotaro Kawakami

IPC分类号： H01M10/0562 ,  C01G19/00 ,  H01M10/0525

摘要： A method for producing an LGPS-type solid electrolyte can be provided, the method includes preparing a homogeneous solution by mixing and reacting Li2S and P2S5 in an organic solution such that the molar ratio of Li2S/P2S5 is 1.0-1.85; forming a precipitate by adding, to the homogeneous solution, at least one MS2 (M is selected from the group consisting of Ge, Si, and Sn) and Li2S and then mixing; obtaining a precursor by removing the organic solution from the precipitate; and obtaining the LGPS-type solid electrolyte by heating the precursor at 200-700° C.

公开(公告)号：US10930973B2

公开(公告)日：2021-02-23

申请号：US16494514

申请日：2018-03-16

申请人： MITSUBISHI GAS CHEMICAL COMPANY, INC.

发明人： Aki Katori ,  Kotaro Kawakami ,  Masahiro Shimada ,  Yuki Takase ,  Tomohiro Ito

IPC分类号： H01M10/052 ,  H01M10/0562 ,  C01B25/14 ,  C04B35/547 ,  C04B35/622

摘要： The present invention provides an LGPS-based solid electrolyte production method characterized by having a step in which a mixture of Li3PS4 crystals having a peak at 420±10 cm−1 in a Raman measurement and Li4MS4 crystals (M being selected from the group consisting of Ge, Si, and Sn) is heat treated at 300-700° C. In addition, the present invention can provide an LGPS-based solid electrolyte production method characterized by having: a step in which Li3PS4 crystals having a peak at 420±10 cm−1 in a Raman measurement, Li2S crystals, and sulfide crystals indicated by MS2 (M being selected from the group consisting of Ge, Si, and Sn) are mixed while still having crystals present and a precursor is synthesized; and a step in which the precursor is heat treated at 300-700° C.