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Title: High capacity anode materials for lithium ion batteries

Abstract

High capacity silicon based anode active materials are described for lithium ion batteries. These materials are shown to be effective in combination with high capacity lithium rich cathode active materials. Supplemental lithium is shown to improve the cycling performance and reduce irreversible capacity loss for at least certain silicon based active materials. In particular silicon based active materials can be formed in composites with electrically conductive coatings, such as pyrolytic carbon coatings or metal coatings, and composites can also be formed with other electrically conductive carbon components, such as carbon nanofibers and carbon nanoparticles. Additional alloys with silicon are explored.

Inventors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Envia Systems, Inc., Newark, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1226230
Patent Number(s):
9,190,694
Application Number:
12/938,951
Assignee:
Envia Systems, Inc. ARPA-E
DOE Contract Number:  
AR0000034
Resource Type:
Patent
Resource Relation:
Patent File Date: 2010 Nov 03
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE

Citation Formats

Lopez, Herman A., Anguchamy, Yogesh Kumar, Deng, Haixia, Han, Yongbon, Masarapu, Charan, Venkatachalam, Subramanian, and Kumar, Suject. High capacity anode materials for lithium ion batteries. United States: N. p., 2015. Web.
Lopez, Herman A., Anguchamy, Yogesh Kumar, Deng, Haixia, Han, Yongbon, Masarapu, Charan, Venkatachalam, Subramanian, & Kumar, Suject. High capacity anode materials for lithium ion batteries. United States.
Lopez, Herman A., Anguchamy, Yogesh Kumar, Deng, Haixia, Han, Yongbon, Masarapu, Charan, Venkatachalam, Subramanian, and Kumar, Suject. Thu . "High capacity anode materials for lithium ion batteries". United States. doi:. https://www.osti.gov/servlets/purl/1226230.
@article{osti_1226230,
title = {High capacity anode materials for lithium ion batteries},
author = {Lopez, Herman A. and Anguchamy, Yogesh Kumar and Deng, Haixia and Han, Yongbon and Masarapu, Charan and Venkatachalam, Subramanian and Kumar, Suject},
abstractNote = {High capacity silicon based anode active materials are described for lithium ion batteries. These materials are shown to be effective in combination with high capacity lithium rich cathode active materials. Supplemental lithium is shown to improve the cycling performance and reduce irreversible capacity loss for at least certain silicon based active materials. In particular silicon based active materials can be formed in composites with electrically conductive coatings, such as pyrolytic carbon coatings or metal coatings, and composites can also be formed with other electrically conductive carbon components, such as carbon nanofibers and carbon nanoparticles. Additional alloys with silicon are explored.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Nov 19 00:00:00 EST 2015},
month = {Thu Nov 19 00:00:00 EST 2015}
}

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