Journal
CHEMISTRY OF MATERIALS
Volume 24, Issue 19, Pages 3738-3745Publisher
AMER CHEMICAL SOC
DOI: 10.1021/cm301968b
Keywords
energy storage; lithium-ion battery; silicon nanowires; electrochemistry; anode
Funding
- Robert A. Welch Foundation (BAK) [F-1464]
- Robert A. Welch Foundation (CBM) [F-1436]
- Air Force Research Laboratory [FA-8650-07-2-5061]
- NSF
- U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0001091]
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A tin (Sn)-seeded supercritical fluid-liquid-solid (SFLS) synthesis of silicon (Si) nanowires with trisilane reactant was developed. When used as anodes in lithium ion (Li-ion) batteries, films of the nanowires with poly(vinylidene) fluoride (PVdF) or sodium alginate (NaAlg) binder, carbon conductor, and fluoroethylene carbonate (FEC)-containing electrolyte gave reversible, high charge storage capacities of 1,800 mA h g(-1). The nanowires also exhibited relatively good rate capability, with capacities of 400 mA h g(-1) at the relatively fast cycling rates of 2C.
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