Double-network hybrid hydrogel electrolyte suppresses zinc dendrites and vanadium dissolution for durable zinc-metal batteries
Double-network hybrid hydrogel electrolyte suppresses zinc dendrites and vanadium dissolution for durable zinc-metal batteries
研究概述
设计丙烯酰胺/丙烯酸与壳聚糖组成的双网络水凝胶电解质，兼顾机械强度、自修复和低水活性，抑制锌枝晶与副反应。锌对称电池运行超过3000小时，Zn/VO2全电池循环3000次；XANES用于验证钒溶解受到抑制。
谱图与表征信息
Fig. 7. (a) XANES spectrum of V K-edge and (b) the enlarging zone. (c) Fourier transform of V K-edge extending XAFS. Wavelet transform of V K-edge extending XAFS of (d) pristine VO2 cathode, cycled VO2 cathodes in the (e) PAM and (f) P(AM-co-AA)-CS electrolytes. (g) ICP-AES V elemental analysis of cycled hydrogel electrolytes. XPS chemical composition analysis of cycled VO2 cathodes in the (h) PAM and (i) P(AM-co-AA)-CS electrolytes.