- 专利标题: PRODUCTION METHOD OF NEGATIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, PRODUCTION METHOD OF NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, PRODUCTION METHOD OF NEGATIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
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申请号: US15759334申请日: 2016-08-29
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公开(公告)号: US20180254480A1公开(公告)日: 2018-09-06
- 发明人: Hiromichi KAMO , Takakazu HIROSE , Katsunori NISHIURA , Hitoshi ONISHI
- 申请人: SHIN-ETSU CHEMICAL CO., LTD. , MITSUI CHEMICALS, INC.
- 申请人地址: JP Tokyo JP Tokyo
- 专利权人: SHIN-ETSU CHEMICAL CO., LTD.,MITSUI CHEMICALS, INC.
- 当前专利权人: SHIN-ETSU CHEMICAL CO., LTD.,MITSUI CHEMICALS, INC.
- 当前专利权人地址: JP Tokyo JP Tokyo
- 优先权: JP2015-178612 20150910; JP2015-257097 20151228
- 国际申请: PCT/JP2016/003912 WO 20160829
- 主分类号: H01M4/48
- IPC分类号: H01M4/48 ; H01M10/0525 ; H01M10/058 ; C01B33/32
摘要:
A production method of a negative electrode active material containing a silicon compound (SiOx: 0.5≤x≤1.6) that contains Lithium includes: making a silicon compound into which the lithium has been inserted contact with a solution B containing a polycyclic aromatic compound or a derivative thereof or both thereof (here, the solution B contains one or more kinds selected from an ether-based solvent, a ketone-based solvent, an ester-based solvent, an alcohol-based solvent, and an amine-based solvent as a solvent); and making the silicon compound contact with a solution C (here, the solution C contains one or more kinds selected from an ether-based material, a ketone-based material, and an ester-based material as the solvent, and contains a compound having a quinoid structure in a molecule as a solute).