锚定在碳纤维上的 CuS-CTAB 分层微球作为水系锌离子电池的柔性阳极,ACS Applied Energy Materials

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锚定在碳纤维上的 CuS-CTAB 分层微球作为水系锌离子电池的柔性阳极
ACS Applied Energy Materials ( IF 5.4 ) Pub Date : 2024-02-09 , DOI: 10.1021/acsaem.3c02980
Rongrong Mu ₁ , Guoquan Suo ₁ , Baoguo Zhao ₁ , Xiaojiang Hou ₁ , Xiaohui Ye ₁ , Yanling Yang ₁ , Li Zhang ₁

Affiliation

尽管在水性锌离子电池（ZIB）中使用锌金属作为阳极具有众多优点，但仍存在枝晶形成、析氢和腐蚀等重大挑战，阻碍了ZIB的长期发展。为了克服这些障碍，我们开发了碳纤维上的 CuS-十六烷基三甲基溴化铵 (CTAB) 分级微球 (CuS-CTAB@CF) 作为 ZIB 的替代阳极材料。CuS-CTAB@CF可以直接作为自支撑柔性负极，从而简化电池制备过程。CF作为天然导电网络，无需导电炭黑，其大表面积为CuS-CTAB分级微球的生长提供了丰富的活性位点，确保了充足的活性物质参与反应。CF良好的电子导电性可以保证电子的快速传输。具有足够空隙空间的分层结构可以有效缓冲负极材料的体积膨胀。当作为 ZIB 阳极进行评估时，CuS-CTAB@CF 与纯 CuS-CTAB 相比表现出优异的电化学性能。^{CuS-CTAB@CF负极在10 A g –1}电流密度下循环98次后放电容量为144 mAh g ^–1，而CuS-CTAB负极在80次循环后仅达到87 mAh g ^–1容量在相同的电流密度下。这项工作将有助于 ZIB 负极材料的进步，并为该领域的进一步研究提供宝贵的见解。

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CuS-CTAB Hierarchical Microspheres Anchored on Carbon Fibers as a Flexible Anode for Aqueous Zinc-Ion Batteries

Despite the numerous advantages of using zinc metal as an anode in aqueous zinc-ion batteries (ZIBs), there are significant challenges, such as dendrite formation, hydrogen evolution, and corrosion, that hinder the long-term development of ZIBs. To overcome these obstacles, we have developed CuS-cetyltrimethylammonium bromide (CTAB) hierarchical microspheres on carbon fiber (CuS-CTAB@CF) as an alternative anode material for ZIBs. The CuS-CTAB@CF can directly serve as a self-standing flexible anode, thereby simplifying the battery preparation process. The CF acts as a natural conductive network, eliminating the need for conductive carbon black, and its large surface area provides abundant active sites for the growth of CuS-CTAB hierarchical microspheres, ensuring the involvement of an ample amount of active substances in the reaction. The good electronic conductivity of the CF can ensure fast electron transportation. The hierarchical structures with sufficient void space can effectively buffer the volume expansion of anode materials. When evaluated as an anode for ZIBs, the CuS-CTAB@CF exhibits superior electrochemical performance compared to that of pure CuS-CTAB. The CuS-CTAB@CF anode delivers a discharge capacity of 144 mAh g^–1 after 98 cycles at a current density of 10 A g^–1, while the CuS-CTAB anode only achieves a capacity of 87 mAh g^–1 after 80 cycles at the same current density. This work will contribute to the advancement of anode materials for ZIBs and provide valuable insights into further research in this field.

更新日期：2024-02-09

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