发明名称 |
METHOD FOR MANUFACTURING ACTIVE MATERIAL COMPOSITE POWDER |
摘要 |
Provided is a method for manufacturing an active material composite powder by which an active material composite powder that can inhibit increase in its reaction resistance at a high voltage state can be manufactured. The method includes: spraying a solution containing lithium and a peroxo complex of niobium to an active material, and at the same time drying the solution; carrying out a heating treatment, after the spraying and drying, for obtaining a powder including the active material and a coating layer attached to a surface of the active material; producing a mixed liquid by mixing the powder and a solvent that can dissolve lithium nitrate and does not dissolve lithium niobate included in the coating layer obtained by the heat treatment, and stirring the mixed liquid; and carrying out, after the mixing and stirring, a solid-liquid separation on the mixed liquid; and drying a solid obtained by the separation. |
申请公布号 |
US2017077489(A1) |
申请公布日期 |
2017.03.16 |
申请号 |
US201615261110 |
申请日期 |
2016.09.09 |
申请人 |
Toyota Jidosha Kabushiki Kaisha |
发明人 |
Uchiyama Takayuki |
分类号 |
H01M4/04;H01M4/485;H01M4/505;H01M4/36;H01M4/525 |
主分类号 |
H01M4/04 |
代理机构 |
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代理人 |
|
主权项 |
1. A method for manufacturing an active material composite powder, the method comprising:
spraying a solution including lithium and a peroxo complex of niobium over an active material, and at the same time drying the solution; after the spraying and drying, carrying out a heat treatment, for obtaining a powder including the active material and a coating layer attached to a surface of the active material; after the heat treatment, mixing the powder and a solvent that can dissolve lithium nitrate and does not dissolve lithium niobate included in the coating layer obtained by the heat treatment, for producing a mixed liquid, and stirring the mixed liquid; after the mixing and stirring, carrying out a solid-liquid separation on the mixed liquid; and drying a solid obtained by the solid-liquid separation. |
地址 |
Toyota-shi JP |