High capacity anode materials for lithium ion batteries

Lopez, Herman A.; Anguchamy, Yogesh Kumar; Deng, Haixia; Han, Yongbon; Masarapu, Charan; Venkatachalam, Subramanian; Kumar, Suject

High capacity anode materials for lithium ion batteries

Patent · Thu Nov 19 04:00:00 EST 2015

OSTI ID:1226230

Lopez, Herman A.; Anguchamy, Yogesh Kumar; Deng, Haixia; Han, Yongbon; Masarapu, Charan; Venkatachalam, Subramanian; Kumar, Suject

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.

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Research Organization:: Envia Systems, Inc., Newark, CA (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: AR0000034

Assignee:: Envia Systems, Inc. (Newark, CA)

Patent Number(s):: 9,190,694

Application Number:: 12/938,951

OSTI ID:: 1226230

Country of Publication:: United States

Language:: English

References (22)

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