Utilization of electroless plating to prepare Cu-coated cotton cloth electrode for flexible Li-ion batteries
Utilization of electroless plating to prepare Cu-coated cotton cloth electrode for flexible Li-ion batteries
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利用化学镀制备柔性锂离子电池用镀铜棉布电极
DOI：
10.1007/s12598-020-01582-3
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发表时间：
2020-09
期刊：
影响因子：
8.8
通讯作者：
Wang Qiang
中科院分区：
文献类型：
--
作者：
Wu Shun;Shi Mai;Han Zhendong;Li Shuang;Pan Yuting;Yuan Shuang;Wang Qiang
开发下一代柔性锂离子电池（LIB）需要柔性、轻质和高电导率的基板。此外，对于高性能锂离子电池，应优化活性材料和柔性基板之间的界面强度。这里，采用棉布（CC）作为柔性基材，并利用化学镀沉积一层铜纳米粒子，这增强了CC的导电性并充当活性材料（即CuO）的前体。结果表明，原位蚀刻和随后的热处理将铜膜转化为 CC 基板上的 CuO 纳米线。此外，引入碳纳米管（CNT）来增强CuO纳米线的连接性。因此，CuO/CNT/CC电极在100次充放电循环后呈现出>≥700 μAh·cm-2的高面积容量以及优异的倍率性能。目前的工作提出了一种为下一代柔性锂离子电池开发理想基板的新途径。
Flexible, lightweight and high conductivity substrates are required for the development of next-generation flexible Li-ion batteries (LIBs). In addition, the interfacial strength between the active material and flexible substrate should be optimized for high-performance LIBs. Herein, cotton cloth (CC) is employed as a flexible substrate, and electroless plating is utilized to deposit a layer of Cu nanoparticles, which enhances the conductivity of CC and acts as a precursor for the active material, i.e., CuO. The results reveal that the in situ etching and subsequent heat treatment converted Cu film into CuO nanowires on CC substrate. Moreover, carbon nanotubes (CNTs) are introduced to enhance the connectivity of CuO nanowires. Consequently, the CuO/CNT/CC electrode rendered a high areal capacity of > 700 μAh·cm−2after 100 charge/discharge cycles as well as excellent rate capability. The current work presents a novel route to develop desirable substrates for next-generation flexible Li-ion batteries.
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