石墨烯在化学储能中的研究进展  

Recent progress about graphene for chemical energy storage applications

作　　者：黄澍[1,2] 王玮[2,3] 王康丽[2] 蒋凯[2,3] 程时杰[2] 

机构地区：[1]武汉工程大学材料科学与工程学院,湖北武汉430073 [2]强电磁工程与新技术国家重点实验室华中科技大学电气与电子工程学院,湖北武汉430074 [3]材料成型与模具技术国家重点实验室华中科技大学材料科学与工程学院,湖北武汉430074

出　　处：《储能科学与技术》2014年第2期85-95,共11页Energy Storage Science and Technology

摘　　要：石墨烯独特的二维空间结构使其具有优异的导电性能、力学性能以及超大的比表面积,被认为是颇具潜力的新型储能材料,是目前储能研究的热点之一。本文综述了石墨烯在储氢、超级电容器、锂离子电池、锂硫电池以及锂-空气电池等化学储能领域中的应用,探讨了不同制备方法对其性能的影响。石墨烯以其特殊的空间结构而成为极具前景的储氢材料,同时与其它材料复合后形成三维导电网络结构而提高电极材料的电化学性能,还可以缓冲电极材料在循环过程中的体积变化,有效提升储能材料的循环寿命。通过优化复合材料的微观结构,将进一步提高其电化学性能。本文最后就石墨烯在储能应用中的关键问题进行了简要分析。The unique two-dimensional spatial structure gives graphene excellent chemical and physical properties and huge specific surface area. These make graphene a very promising material for energy storage applications. This paper reviews recent progress in the use of graphene in chemical energy storage, including hydrogen storage, supercapacitor, lithium ion batteries, lithium-sulfur batteries and lithium-air batteries. Relationships between different preparation methods of graphene and their chemical/electrochemical properties are discussed. Graphene could form three dimensional conductive network to enhance the electrochemical properties of electrodes materials, but also provide a buffer for the volume change during charging-discharging processes to extend the life-span. Further improvements of electrochemical performance are able to be achieved by optimizing the microstructure of composite materials. Finally, key issues related to practical applications of graphene are briefly discussed.

关 键 词：石墨烯 化学储能 储氢 超级电容器 锂离子电池 锂硫电池 锂-空气电池 

分 类 号：TQ152[化学工程—电化学工业]