Graphene-Based Sulfur Composites for Energy Storage and Conversion in Li-S Batteries

作     者：Xingxing Gu Shanqing Zhang Yanglong Hou 

作者机构：Department of Materials Science and Engineering College of Engineering Peking University Beijing 100871 China Centre for Clean Environment and Energy Environmental Futures Insititute Griffith School of Environment Gold Coast Campus Griffith University QLD 4222 Australia 

出 版 物：《Chinese Journal of Chemistry》 (中国化学（英文版）)

年 卷 期：2016年第34卷第1期

页      面：13-31页

核心收录：

学科分类：081704[工学-应用化学] 0808[工学-电气工程] 07[理学] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 070301[理学-无机化学] 

基　　金：financial support of the ARC Discovery Grants from the Australian Research Council, the Beijing Project of Scienc and Technology NSFC-RGC Joint Research Scheme 国家自然科学基金 国家教育部高等学校博士学科点专项科研基金 Opeing Funds of National Laboratory of Molecular Science and Key Laboratory of Functional Inorganic Material Chemistry (Heilongjiang University), Ministry of Education of China 

主　　题：Li-S batteries graphene-sulfur composites polysulfides immobilization 

摘      要：There are growing research interests in developing high-performance energy storage systems to meet the demands for large-scale and sustainable energy storage. The lithium-sulfur （Li-S） batteries have drawn numerous attentions due to their exceptionally high energy density compared with other batteries. However, achieving the high capacities with long-term cycle stability and retaining an essentially high sulfur loading remains a tremendous chal- lenge for the designs of Li-S batteries. Graphene is regarded as a very suitable and promising addition to the com- positions for Li-S batteries due to its unique two dimensional （2D） structure, high conductivity and superior me- chanical flexibility. Besides, the functional groups of graphene surface can be tuned flexibly to immobilize the S/Li2Sx on the graphene surface during the cycling process. In this review, the development of graphene-sulfur composites and their applications in Li-S batteries are discussed. The attempts are also devoted to the synthesis approaches of various graphene-based sulfur composites, the graphene-sulfur interaction and the impacts on the elec- trochemical performances as well as the major issues of Li-S batteries.