Journal
ACS NANO
Volume 3, Issue 8, Pages 2177-2184Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nn900432u
Keywords
lithium ion battery; single-walled carbon nanotube; copper oxide; composite; sandwiched structures; anode material
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Funding
- National Science Foundation [CMMI 0753462]
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Development of materials and structures leading to lithium ion batteries with high energy and power density is a major requirement for catering to the power needs of present day electronic industry, Here, we report an in situ formation of a sandwiched structure involving single-walled carbon nanotube film, copper oxide, and copper during the direct synthesis of nanotube macrofilms over copper foils and their electrochemical performance in lithium ion batteries. The sandwiched structure showed a remarkably high reversible capacity of 220 mAh/g at a high cycling current of 18.6 A/g (50 C), leading to a significantly improved electrochemical performance which is extremely high compared to pure carbon nanotube and any other carbon based materials.
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