锌
阳极
过电位
电解质
枝晶(数学)
电偶阳极
成核
无机化学
材料科学
铜
化学工程
电镀(地质)
化学
电化学
锌酸盐
电极
冶金
有机化学
阴极保护
物理化学
几何学
工程类
地质学
数学
地球物理学
作者
Qi Zhang,Jingyi Luan,Liang Fu,Shuo Wu,Yougen Tang,Xiaobo Ji,Haiyan Wang
标识
DOI:10.1002/anie.201907830
摘要
Abstract Rechargeable aqueous zinc‐ion batteries have been considered as a promising candidate for next‐generation batteries. However, the formation of zinc dendrites are the most severe problems limiting their practical applications. To develop stable zinc metal anodes, a synergistic method is presented that combines the Cu‐Zn solid solution interface on a copper mesh skeleton with good zinc affinity and a polyacrylamide electrolyte additive to modify the zinc anode, which can greatly reduce the overpotential of the zinc nucleation and increase the stability of zinc deposition. The as‐prepared zinc anodes show a dendrite‐free plating/stripping behavior over a wide range of current densities. The symmetric cell using this dendrite‐free anode can be cycled for more than 280 h with a very low voltage hysteresis (93.1 mV) at a discharge depth of 80 %. The high capacity retention and low polarization are also realized in Zn/MnO 2 full cells.
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