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Jing Ren, Li Li, Chen Chen, Xuli Chen, Zhenbo Cai, Longbin Qiu, Yonggang Wang, Xingrong Zhu and Huisheng Peng Twisting Carbon Nanotube Fibers for Both Wire-Shaped Micro-Supercapacitor and Micro-Battery Advanced Materials 25

Version of Record online: 22 NOV 2012 | DOI: 10.1002/adma.201203445

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Wire-shaped micro-supercapacitor and micro-battery: Aligned multi-walled carbon nanotube fibers and composite fibers have been easily twisted to produce both wire-shaped supercapacitors and lithium ion batteries with high performances. The energy densities achieved 92.84 and 35.74 mWh/cm3 while the power densities could reach 3.87 and 2.43 W/cm3 during the charge and discharge process, respectively. The unique structure enables promising applications in various fields, e.g., these wires can be easily integrated into electronic textiles by a conventional weaving technique.

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