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公开(公告)号：US10825574B2
公开(公告)日：2020-11-03
申请号：US16069439
申请日：2017-01-13
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.
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公开(公告)号：US11271245B2
公开(公告)日：2022-03-08
申请号：US16493924
申请日：2018-03-16
发明人： Aki Katori , Kotaro Kawakami
IPC分类号： H01M10/0525 , H01M10/0562
摘要： The present invention can provide a production method for a solid electrolyte having Li3PS4, said method characterized by including: a solution-making step in which a homogenous solution is prepared by mixing Li2S and P2S5 into an organic solvent; and a precipitation step in which further Li2S is added to and mixed in the homogenous solution and a precipitate is formed. Preferably, the embodiment either has a molar ratio (Li2S/P2S5) between the Li2S and the P2S5 in the solution-making step of 1.0-1.85 or has further Li2S added to the homogenous solution in the precipitation step such that the molar ratio becomes Li2S/P7S5=2.7-3.3.
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公开(公告)号：US11489194B2
公开(公告)日：2022-11-01
申请号：US16641164
申请日：2018-08-16
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.
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公开(公告)号：US10930973B2
公开(公告)日：2021-02-23
申请号：US16494514
申请日：2018-03-16
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.
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