NDLI: High-rate, high-density FeSb–TiC–C nanocomposite anodes for lithium-ion batteries

Content Provider	Royal Society of Chemistry (RSC)
Author	Manthiram, Arumugam Allcorn, Eric
Copyright Year	2015
Abstract	High-density, high-rate FeSb–TiC–C nanocomposite alloy anodes composed of varying amounts of FeSb, TiC, and conductive carbon black have been synthesized by heating the metallic precursors first followed by high-energy mechanical milling (HEMM) of the product with carbon black. The synthesis method allows for a systematic variation of the TiC and carbon contents within the electrode so that the effects of each component on the electrochemical performance can be understood. The FeSb–TiC–C samples display high tap density (2.9 g cm−3), high reversible specific capacity (450 mA h g−1), superior volumetric capacity (1300 mA h cm−3), and high rate capability (89% retention of the C/5 capacity at 10 C rate). However, realizing a cycle life of >500 cycles requires increased contents of carbon and TiC, which lead to a reduction in reversible capacity and tap density. Incorporation of additives, such as fluoroethylene carbonate (FEC) or vinylene carbonate (VC), into the electrolyte provides moderate improvements in cycle life. The FeSb–TiC–C nanocomposite anodes with a high volumetric capacity at a moderate operating voltage offer an attractive alternative to graphite anodes with safety advantages.
Starting Page	3891
Ending Page	3900
Page Count	10
File Format	HTM / HTML PDF
ISSN	20507488
Volume Number	3
Issue Number	7
Journal	Journal of Materials Chemistry A
DOI	10.1039/c4ta06869f
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	HEMM FEC Nanocomposite Carbon black Carbon Electrode Electrochemistry Vinylene group Venture capital Electrolyte Graphite
Content Type	Text
Resource Type	Article
Subject	Chemistry Renewable Energy, Sustainability and the Environment Materials Science

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