锂离子电容器研究进展
首发时间:2019-12-04
摘要:锂离子电容器(Lithium ion capacitor, LIC)是介于锂离子电池和超级电容器之间的一种新型电化学储能装置。一般来说,正极采用电容型的多孔碳材料,负极采用嵌入型电池材料。锂离子电容器因不同的储能机理机理,与超级电容器相比,其具有更大的比容量、更高的能量密度,与锂离子电池相比,其具有更高的功率密度、更长的使用寿命,极具应用前景。本文介绍了锂离子电容器的工作原理,总结了正负极材料的性质特点以及新型电极结构改进方法,并对以后的研究方向进行了展望。
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Research Progress on Lithium-Ion Capacitors
Abstract:Lithium-ion capacitors (LIC) is a new type of electrochemical energy storage device between lithium-ion battery (LIB) and supercapacitor. Generally,the cathode uses porous carbon materials of capacitors, and the anode uses intercalation materials of batteries. Because of the different energy storage principles, lithium ion capacitors have higher specific capacity and higher energy density than conventional capacitors, and have higher power density and longer service life than lithium ion batteries, ushering in their great application prospects. This review introduces the energy storage mechanisms of LIC, summarizing the characteristics and matching of LICs cathode and anode materials, and the directions in future research is discussed.
Keywords: lithium-ion capacitor electrode materials review energy density power density
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