电解质
材料科学
锌
化学工程
傅里叶变换红外光谱
聚合物
循环伏安法
石墨烯
胶体
扫描电子显微镜
离子电导率
电化学
化学
电极
纳米技术
复合材料
冶金
物理化学
工程类
作者
Xingliang Jia,Jingling Ma,Liangliang Zhang,Chenfei Zhang,Guangxin Wang
出处
期刊:Journal of The Electrochemical Society
[The Electrochemical Society]
日期:2022-12-01
卷期号:169 (12): 120526-120526
被引量:3
标识
DOI:10.1149/1945-7111/acadaf
摘要
An alkaline gel polymer electrolyte, namely a poly (acrylic acid)-zinc acetate (Zn(AC) 2 )-aquatic colloidal graphene (ACG) solution (PAA-Zn(AC) 2 -ACG), was prepared by solution casting method. Properties of PAA-Zn(AC) 2 -ACG were studied by Fourier transform infrared spectrometer (FTIR), scanning electron microscopy (SEM), AC impedance, cyclic voltammetry (CV) and water retention ability. Results obtained show that PAA-Zn(AC) 2 -ACG exhibits a high ionic conductivity of 407.9 mS·cm –1 , an electrochemical stability window of 1.7 V, and 72.5% water retention ability. Flexible zinc-air batteries (ZABs) with PAA-Zn(AC) 2 -ACG gel polymer electrolyte have an better discharge capacity of 672 mAh g −1 Zn at 0.5 mA·cm –2 (current density), a continuous charge-discharge duration of 43.3 h, 130 cycles, and a cycle efficiency of 64.8%. Based on work done in this study, it can be concluded that flexible ZABs have advantageous prospects and large potential for practical applications.
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