Si6H12/polymer lnks for electrospinning a-Si nanowire lithium ion battery anodes

Douglas L. Schulz, Justin Hoey, Jeremiah Smith, Arumugasamy Elangovan, Xiangfa Wu, Iskander Akhatov, Scott Payne, Jayma Moore, Philip Boudjouk, Larry Pederson, Jie Xiao, Ji Guang Zhang

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)

Abstract

Amorphous silicon nanowires (a-SiNWs) have been prepared by electrospinning a liquid silane-based precursor. Cyclohexasilane (Si6H12) was admixed with poly(methyl methacrylate) (PMMA) in toluene giving an ink that was electrospun into the Si6H12/PPMA wires with diameters of 50-2000 nm. Raman spectroscopy revealed that thermal treatment at 350°C transforms this deposit into a-SiNWs. These materials were coated with a thin carbon layer and then tested as half-cells where a reasonable plateau in electrochemical cycling was observed after an initial capacity fade. Additionally, porous a-SiNWs were realized when the thermally decomposable binder polypropylene carbonate/polycyclohexene carbonate was used as the polymer carrier.

Original languageEnglish
Pages (from-to)A143-A145
JournalElectrochemical and Solid-State Letters
Volume13
Issue number10
DOIs
Publication statusPublished - 2010
Externally publishedYes

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