期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 2, 期 5, 页码 1257-1262出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ta14100d
关键词
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资金
- Office of Vehicle Technologies of the U.S. Department of Energy [DE-AC02-05CH11231]
- Batteries for the Advanced Transportation Technologies (BATT) Program [6951378]
We report the synthesis of micro-sized silicon-carbon (Si-C) composites, which simultaneously possess primary sub-10 nm Si particles and secondary micro-sized aggregation coated with carbon. Because of this unique structure, the as-synthesized Si-C composite anode can deliver excellent cycling stability with a high reversible specific capacity (similar to 1600 mA h g(-1)) within 150 cycles at 400 mA g(-1). Moreover, a high volumetric capacity of similar to 1088 mA h cm(-3) was demonstrated by using this composite cathode, which is 5 times higher than that of commercially available nano-silicon based anodes.
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