Structure engineering of cathode host materials for Li-S batteries  

作　　者：Jia-Jun Long Hua Yu Wen-Bo Liu 

机构地区：[1]School of New Energy and Materials,Southwest Petroleum University,Chengdu,610500,China [2]School of Mechanical Engineering,Sichuan University,Chengdu,610065,China

出　　处：《Rare Metals》2024年第4期1370-1389,共20页稀有金属（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(Nos.52075351 and 51604177);the National Key Research and Development Program of China(No.2019YFA0705701);the Major S&T Infrastructure Construction Project of Sichuan Province(No.2020-510000-73-01-441847);the International S&T Innovation Cooperation Program of Sichuan Province(No.2020YFH0039);Chengdu International S&T Cooperation Funded Project(Nos.2020-GH02-00006-HZ and 2022-GH02-00027-HZ);the"1000 Talents Plan"of Sichuan Province;the Talent Introduction Program of Sichuan University(No.YJ201410)。

摘　　要：Although lithium-sulfur batteries are one of the favorable candidates for next-generation energy storage devices,a few key challenges that have not been addressed have limited its commercialization.These challenges include lithium dendrite growth in the anode side,volume change of the active material,poor electrical conductivity,dissolution and migration of poly sulfides,and slow rate of solid-state reactions in the cathode side.Since the electrochemical performance of lithium-sulfur batteries is greatly affected by the design of the cathode host material,it has also been widely discussed in addressing the abovementioned issues.In this paper,three design ideas of cathode host materials in terms of microstructure,crystal structure and electronic structure are introduced and summarized.Crucially,the current progress of these three structural design strategies and their effects on the electrochemical performance of lithium-sulfur batteries are discussed in detail.Finally,future directions in the structural design of cathode materials for lithium-sulfur batteries are discussed and further perspectives are provided.

关 键 词：Lithium-sulfur batteries Structure engineering CATHODE Host materials 

分 类 号：TM912[电气工程—电力电子与电力传动]