超级电容器
材料科学
电极
储能
纳米技术
电化学储能
电容
环境科学
电解质
工程物理
电化学能量转换
能量密度
电池(电)
化学工程
比能量
工程类
化学
物理化学
标识
DOI:10.1007/s11431-015-5940-y
摘要
As one of new electrical energy storage systems, supercapacitors possess higher energy density than conventional capacitors and larger power density than batteries, integrating substantial merits with high energy, large power delivery, long cycle life, obvious safety, and low cost. However, the unsatisfying energy density is the inhabiting issue for the wide commercial applications. As the energy density (E, W h kg−1) is directly proportional to specific capacitance (C, F g−1) and the square of operating voltage (V, V), in this review, we summarize the recent progress in two sections: the exploration of high-performance electrode materials to achieve high specific capacitance and the construction of high-voltage supercapacitor systems for high working voltage. The progressive explorations and developments in supercapacitors could guide the future research towards high-performance, low-cost, and safe energy storage devices.
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