- 专利标题: Manufacturing process of making negative electrodes for batteries
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申请号: US16752192申请日: 2020-01-24
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公开(公告)号: US11876213B2公开(公告)日: 2024-01-16
- 发明人: Xingcheng Xiao , Xingyi Yang , Raghunathan K , Mark W. Verbrugge
- 申请人: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- 申请人地址: US MI Detroit
- 专利权人: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- 当前专利权人: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- 当前专利权人地址: US MI Detroit
- 代理机构: Harness, Dickey & Pierce, P.L.C.
- 主分类号: H01M4/139
- IPC分类号: H01M4/139 ; H01M10/0525 ; H01M4/04 ; H01M4/62 ; C23C16/455 ; H01M4/36 ; C23C16/40 ; H01M4/02
摘要:
A method of making an electrode material for an electrode in an electrochemical cell that cycles lithium ions is provided, where a protective coating is applied to an electrode precursor material. The electrode precursor may be a silicon-containing composition. The protective coating is selected from the group consisting of: an oxide-based coating, a fluoride-based coating, and a nitride-based coating. The method also includes lithiating the electrode precursor material in a continuous process. The continuous process is conducted in a reactor having a first reaction chamber and a second reaction chamber to form a lithiated electrode material comprising the protective coating.
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