材料科学
电解质
石墨烯
电池(电)
聚合物
电极
功率密度
环氧乙烷
氧化物
化学工程
剥离(纤维)
纤维
复合材料
纳米技术
化学
冶金
功率(物理)
物理
物理化学
量子力学
工程类
共聚物
作者
Guoyuan Wang,Guoxian Li,Yu-Dong Tang,Zhen Zhao,Wei Yu,Chuizhou Meng,Shuxiang Guo
标识
DOI:10.1021/acs.jpclett.2c03357
摘要
Fiber-shaped solid-state zinc-ion battery (FZIB) is a promising candidate for wearable electronic devices, but challenges remain in terms of mechanical stability and low temperature tolerance. Herein, we design and fabricate a FZIB with an integrated device structure through effective incorporation of the active electrode materials with a carbon fiber rope (CFR) and a gel polymer electrolyte. The gel polymer electrolyte incorporated with ethylene glycol (EG) and graphene oxide (GO) endows the FZIB with a high Zn stripping/plating efficiency under extreme low temperature conditions. A high power density of 1.25 mW cm-1 and large energy density of 0.1752 mWh cm-1 are obtained. In addition, a high capacity retention of 91% after 2000 continuous bending cycles is achieved. Furthermore, the discharge capacity is fairly retained at more than 22% even at the low temperature of -20 °C. Toward practical applications, the FZIB integrated into textiles to power electronic products is demonstrated.
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