用于增强柔性锂离子微型电池循环性能的电聚合碳纳米管直接预锂化
Direct Pre-lithiation of Electropolymerized Carbon Nanotubes for Enhanced Cycling Performance of Flexible Li-Ion Micro-Batteries.
作者信息
Sugiawati Vinsensia Ade, Vacandio Florence, Yitzhack Neta, Ein-Eli Yair, Djenizian Thierry
机构信息
Mines Saint-Etienne, Center of Microelectronics in Provence, Department of Flexible Electronics, F-13541 Gardanne, France.
CNRS, Electrochemistry of Materials Research Group, Aix Marseille Université, MADIREL, UMR 7246, F-13397 Marseille CEDEX 20, France.
出版信息
Polymers (Basel). 2020 Feb 11;12(2):406. doi: 10.3390/polym12020406.
Carbon nanotubes (CNT) are used as anodes for flexible Li-ion micro-batteries. However, one of the major challenges in the growth of flexible micro-batteries with CNT as the anode is their immense capacity loss and a very low initial coulombic efficiency. In this study, we report the use of a facile direct pre-lithiation to suppress high irreversible capacity of the CNT electrodes in the first cycles. Pre-lithiated polymer-coated CNT anodes displayed good rate capabilities, studied up to 30 C and delivered high capacities of 850 mAh g (313 μAh cm) at 1 C rate over 50 charge-discharge cycles.
碳纳米管（CNT）被用作柔性锂离子微型电池的阳极。然而，以碳纳米管作为阳极来生长柔性微型电池面临的主要挑战之一是其巨大的容量损失以及非常低的初始库仑效率。在本研究中，我们报告了使用一种简便的直接预锂化方法来抑制碳纳米管电极在首个循环中的高不可逆容量。预锂化的聚合物包覆碳纳米管阳极展现出良好的倍率性能，在高达30 C的倍率下进行了研究，并在1 C倍率下经过50次充放电循环后提供了850 mAh g（313 μAh cm）的高容量。
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