电解质
材料科学
准固态
电池(电)
化学工程
锌
快离子导体
离子电导率
电导率
光子学
自愈水凝胶
纳米技术
光电子学
色素敏化染料
电极
高分子化学
冶金
化学
物理
工程类
物理化学
功率(物理)
量子力学
作者
Yayu Zuo,Wenxin Zhang,Manhui Wei,Pengfei Zhang,Siyuan Zhao,Pucheng Pei,Lili Qiu,Hengwei Wang,Zihui Meng,Keliang Wang
标识
DOI:10.1016/j.ensm.2022.08.047
摘要
The solid-state electrolyte is one of the critical components of flexible zinc-air batteries, directly determining its discharge performance via water content. However, the health monitoring of solid-state electrolytes has long been neglected in practical applications due to the unique “half-open” structure of zinc-air batteries. Here, we first report a solid-state electrolyte health monitoring strategy based on photonic metamaterials. The double-network (DN) hydrogels formed by polyacrylamide (PAM) and sodium alginate (SA) were combined with photonic crystals (PhCs) self-assembled from polymethyl methacrylate (PMMA) nanoparticles to monitor the water content of solid-state electrolytes. The results demonstrate that the dehydration of solid-state electrolytes leads to the shrinkage of the gel volume and the structural color changes (blue shift) of PhCs, real-time monitoring the health of PAM-SA electrolyte and reflecting ionic conductivity of the electrolyte via optical signals. Moreover, a flexible zinc-air battery with the electrolyte of 275 mS cm–1 exhibits high charging-discharging efficiency (>80%), and the battery can work at the low temperature of -20 ℃. This work provides a strategy for the self-monitoring of solid-state batteries.
科研通智能强力驱动
Strongly Powered by AbleSci AI