Invention Grant
- Patent Title: Method and system for silicon dominant lithium-ion cells with controlled lithiation of silicon
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Application No.: US16584574Application Date: 2019-09-26
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Publication No.: US12183918B2Publication Date: 2024-12-31
- Inventor: Benjamin Park , Ian Browne , Sung Won Choi , Fred Bonhomme
- Applicant: Enevate Corporation
- Applicant Address: US CA Irvine
- Assignee: Enevate Corporation
- Current Assignee: Enevate Corporation
- Current Assignee Address: US CA Irvine
- Agency: McAndrews, Held & Malloy, Ltd.
- Main IPC: H01M4/38
- IPC: H01M4/38 ; H01M4/02 ; H01M4/04 ; H01M4/134 ; H01M10/0525 ; H01M10/44

Abstract:
Systems and methods for silicon dominant lithium-ion cells with controlled lithiation of silicon may include a cathode, an electrolyte, and an anode. The anode may include silicon lithiated at a level after discharge that is configured to be above a minimum threshold level, where the minimum threshold lithiation is 3% silicon lithiation. The lithiation level of the silicon after charging the battery may range between 30% and 95% silicon lithiation, between 30% and 75% silicon lithiation, between 30% and 65% silicon lithiation, or between 30% and 50% silicon lithiation. The lithiation level of the silicon after discharging the battery may range between 3% and 50% silicon lithiation, between 3% and 30% silicon lithiation, or between 3% and 10% silicon lithiation. The minimum threshold level may be a lithiation level below which a cycle life of the battery degrades. The electrolyte may include a liquid, solid, or gel.
Public/Granted literature
- US20210098784A1 METHOD AND SYSTEM FOR SILICON DOMINANT LITHIUM-ION CELLS WITH CONTROLLED LITHIATION OF SILICON Public/Granted day:2021-04-01
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