- 专利标题: LI-ION BATTERY CELL USING IMPROVED ANODE CURRENT COLLECTOR
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申请号: US18361437申请日: 2023-07-28
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公开(公告)号: US20240105984A1公开(公告)日: 2024-03-28
- 发明人: Sepideh PARVINIAN , Indrani BHATTACHARYYA , Michael PAVILONIS , Weimin WANG , Gaurav Rajpal SHARMA , Jens STEIGER
- 申请人: Sila Nanotechnologies, Inc.
- 申请人地址: US CA Alameda
- 专利权人: Sila Nanotechnologies, Inc.
- 当前专利权人: Sila Nanotechnologies, Inc.
- 当前专利权人地址: US CA Alameda
- 主分类号: H01M10/0525
- IPC分类号: H01M10/0525 ; H01M4/04 ; H01M10/0587
摘要:
A lithium-ion battery and methods thereof are disclosed. In an aspect, the lithium-ion battery includes an anode component, a cathode component, a separator, and an electrolyte. The anode component includes an anode current collector and a respective anode coating on each side of the anode current collector. An anode coating includes composite particles including carbon and silicon. A mass fraction of the silicon in the composite particles of the anode coatings may be in a range of about 5 wt. % to about 70 wt. % of the anode coatings. The anode component undergoes a maximum areal expansion (Amax) during the multiple charging and discharging cycles. The anode current collector comprises a copper foil, the copper foil being characterized, before the respective anode coatings are formed thereon, by an ultimate tensile stress (UTS) and a strain at the UTS (εUTS).
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