Abstract：
:One of the most exciting areas in lithium ion batteries is engineering structured silicon anodes. These new materials promise to lead the next generation of batteries with significantly higher reversible charge capacity than current technologies. One drawback of these materials is that their production involves costly processing steps, limiting their application in commercial lithium ion batteries. In this report we present an inexpensive method for synthesizing macroporous silicon particulates (MPSPs). After being mixed with polyacrylonitrile (PAN) and pyrolyzed, MPSPs can alloy with lithium, resulting in capacities of 1000 mAhg(-1) for over 600+ cycles. These sponge-like MPSPs with pyrolyzed PAN (PPAN) can accommodate the large volume expansion associated with silicon lithiation. This performance combined with low cost processing yields a competitive anode material that will have an immediate and direct application in lithium ion batteries.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Thakur M,Sinsabaugh SL,Isaacson MJ,Wong MS,Biswal SLdoi
10.1038/srep00795subject
Has Abstractpub_date
2012-01-01 00:00:00pages
795issn
2045-2322journal_volume
2pub_type
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