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Title: Lithium ion batteries based on nanoporous silicon

A lithium ion battery that incorporates an anode formed from a Group IV semiconductor material such as porous silicon is disclosed. The battery includes a cathode, and an anode comprising porous silicon. In some embodiments, the anode is present in the form of a nanowire, a film, or a powder, the porous silicon having a pore diameters within the range between 2 nm and 100 nm and an average wall thickness of within the range between 1 nm and 100 nm. The lithium ion battery further includes, in some embodiments, a non-aqueous lithium containing electrolyte. Lithium ion batteries incorporating a porous silicon anode demonstrate have high, stable lithium alloying capacity over many cycles.
Authors:
; ;
Publication Date:
OSTI Identifier:
1215619
Report Number(s):
9,142,833
13/702,990
DOE Contract Number:
SC0001342
Resource Type:
Patent
Resource Relation:
Patent File Date: 2011 Jun 07
Research Org:
The Regents of the University of California, Oakland, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE