Towards Ultrathick Battery Electrodes: Aligned Carbon Nanotube - Enabled Architecture
Towards Ultrathick Battery Electrodes: Aligned Carbon Nanotube - Enabled Architecture
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DOI：
10.1002/adma.201103044
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发表时间：
2012-01-24
影响因子：
29.4
通讯作者：
Yushin, Gleb
中科院分区：
文献类型：
--
作者：
Evanoff, Kara;Khan, Javed;Yushin, Gleb
利用气相沉积技术合成非常厚（类似于1 mm）的锂离子电池阳极，其由涂覆有硅和碳的垂直排列的碳纳米管组成。制备的阳极表现出低热（>400 W.m（-1）.K-1）和高电导率（>20 S.m（-1））、高循环稳定性和高平均容量（>3000 mAh.g（Si）（-1））。所采用的工艺允许其他材料的共形沉积，从而使其成为开发具有大大增强的电导率和热导率的锂离子阳极和阴极的有前途的架构。
Vapor deposition techniques were utilized to synthesize very thick (similar to 1 mm) Li-ion battery anodes consisting of vertically aligned carbon nanotubes coated with silicon and carbon. The produced anode demonstrated ultrahigh thermal (>400 W.m(-1).K-1) and high electrical (>20 S.m(-1)) conductivities, high cycle stability, and high average capacity (>3000 mAh.g(Si)(-1)). The processes utilized allow for the conformal deposition of other materials, thus making it a promising architecture for the development of Li-ion anodes and cathodes with greatly enhanced electrical and thermal conductivities.