材料科学
阳极
电化学
复合材料
涂层
纺纱
退火(玻璃)
纳米技术
化学工程
电极
工程类
物理化学
化学
作者
Yanyan Shao,Xia Zhou,Liang Xu,Shouxin Zhang,Dongzi Yang,Zhi-Cheng Yang,Jinrong Luo,Gang Xiao,Yinan Yang,Yiwen Su,Guoqing Lu,Jingyu Sun,Tao Cheng,Yuanlong Shao
标识
DOI:10.1002/adma.202407143
摘要
Abstract The challenge of inadequate mechano‐electrochemical stability in rechargeable fibrous Zn‐ion batteries (FZIBs) has emerged as a critical challenge for their broad applications. Traditional rigid Zn wires struggle to maintain a stable electrochemical interface when subjected to external mechanical stress. To address this issue, a wet‐spinning technique has been developed to fabricate Zn powder based fibrous anode, while carbon nanotubes (CNTs) introduced to enhance the spinnability of Zn powder dispersion. The followed annealing treatment has been conducted to reengineer the Zn crystalline texture with CNTs assisted surface tension regulation to redirect (002) crystallographic textural formation. The thus‐derived annealed Zn@CNTs fiber demonstrates great mechano‐electrochemical stability after a long‐term bending and electrochemical process. The fabricated FZIB demonstrates a remarkable durability, surpassing 800 h at 1 mA cm −2 and 1 mAh cm −2 , with a marginal voltage hysteresis increase of 21.7 mV even after 100 twisting cycles under 180 degree twisting angle. The assembled FZIB full cell displays an 88.6% capacity retention even after a long cycle of a series of bending, knotting, and straightening deformation. It has been also woven into a 200 cm 2 size textile to demonstrate its capability to integrate into smart textiles.
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