Methods for forming silicon-silicon oxide-carbon composites for lithium ion cell electrodes
Abstract
Composite silicon based materials are described that are effective active materials for lithium ion batteries. The composite materials comprise processed, e.g., high energy mechanically milled, silicon suboxide and graphitic carbon in which at least a portion of the graphitic carbon is exfoliated into graphene sheets. The composite materials have a relatively large surface area, a high specific capacity against lithium, and good cycling with lithium metal oxide cathode materials. The composite materials can be effectively formed with a two-step high energy mechanical milling process. In the first milling process, silicon suboxide can be milled to form processed silicon suboxide, which may or may not exhibit crystalline silicon x-ray diffraction. In the second milling step, the processed silicon suboxide is milled with graphitic carbon. Composite materials with a high specific capacity and good cycling can be obtained in particular with balancing of the processing conditions.
- Inventors:
- Issue Date:
- Research Org.:
- Zenlabs Energy, Inc., Fremont, CA (United States)
- Sponsoring Org.:
- USDOE Advanced Research Projects Agency - Energy (ARPA-E); California Energy Commission
- OSTI Identifier:
- 1998361
- Patent Number(s):
- 11646407
- Application Number:
- 17/132,279
- Assignee:
- Zenlabs Energy, Inc. (Fremont, CA)
- DOE Contract Number:
- AR0000034; ARV-09-004
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 12/23/2020
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Anguchamy, Yogesh Kumar, Deng, Haixia, Han, Yongbong, Masarapu, Charan, Kumar, Sujeet, and Lopez, Herman A. Methods for forming silicon-silicon oxide-carbon composites for lithium ion cell electrodes. United States: N. p., 2023.
Web.
Anguchamy, Yogesh Kumar, Deng, Haixia, Han, Yongbong, Masarapu, Charan, Kumar, Sujeet, & Lopez, Herman A. Methods for forming silicon-silicon oxide-carbon composites for lithium ion cell electrodes. United States.
Anguchamy, Yogesh Kumar, Deng, Haixia, Han, Yongbong, Masarapu, Charan, Kumar, Sujeet, and Lopez, Herman A. Tue .
"Methods for forming silicon-silicon oxide-carbon composites for lithium ion cell electrodes". United States. https://www.osti.gov/servlets/purl/1998361.
@article{osti_1998361,
title = {Methods for forming silicon-silicon oxide-carbon composites for lithium ion cell electrodes},
author = {Anguchamy, Yogesh Kumar and Deng, Haixia and Han, Yongbong and Masarapu, Charan and Kumar, Sujeet and Lopez, Herman A.},
abstractNote = {Composite silicon based materials are described that are effective active materials for lithium ion batteries. The composite materials comprise processed, e.g., high energy mechanically milled, silicon suboxide and graphitic carbon in which at least a portion of the graphitic carbon is exfoliated into graphene sheets. The composite materials have a relatively large surface area, a high specific capacity against lithium, and good cycling with lithium metal oxide cathode materials. The composite materials can be effectively formed with a two-step high energy mechanical milling process. In the first milling process, silicon suboxide can be milled to form processed silicon suboxide, which may or may not exhibit crystalline silicon x-ray diffraction. In the second milling step, the processed silicon suboxide is milled with graphitic carbon. Composite materials with a high specific capacity and good cycling can be obtained in particular with balancing of the processing conditions.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2023},
month = {5}
}
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