双电层电容器有机电解液研究进展

双电层电容器作为一种新型储能装置 ,与蓄电池相比具有较高的比功率 ,与传统电容器相比具有较高的比能量 ,容量大 ,无须维护 ,材料无毒 ,运行温度范围宽 ,循环寿命长 ,引起了人们的广泛关注。简介了双电层电容器的工作原理 ,综述了双电层电容器液态有机电解液研究进展 ,同时对固体电解质和胶体电解质的研究现状进行了描述。并根据双电层电容器对电解液的性能要求 ,以提高电解液体系电导率与分解电压为目标 ,提出了优化的电解液体系

Progress on the studies on organic electrolytes for electric double-layer capacitor

Electric double-layer capacitors (EDLCs) have received considerable attention as new energy storage systems because of their advantageous properties, such as higher power density compared with rechargeable batteries, higher energy density compared with conventional capacitors, large capacity, maintenance free, free from toxic materials, broad operating temperature range and long cycle life.The principle of EDLCs was briefly described, and the research and progress on liquid organic electrolytes for EDLCs were reviewed. The state-of-arts of solid electrolytes and gel electrolytes were also reported. According to the performance requirements of DELCs to electrolytes, optimized electrolyte system were developed in order to improve their conductivities and decomposition voltages.