Defect engineering on carbon black for accelerated Li-S chemistry

作     者：Wenlong Cai Yingze Song Yuting Fang Weiwei Wang Songlin Yu Huaisheng Ao Yongchun Zhu Yitai Qian Wenlong Cai;Yingze Song;Yuting Fang;Weiwei Wang;Songlin Yu;Huaisheng Ao;Yongchun Zhu;Yitai Qian

作者机构：Hefei National Laboratory for Physical Sciences at Microscale and Department of ChemistryUniversity of Science and Technology of ChinaHefei230026China State Key Laboratory of Environment-Friendly Energy MaterialsSchool of Materials Science and EngineeringSouthwest University of Science and TechnologyMianyang621010China 

基　　金：This work was financially supported by the National Key Research and Development Program of China(No.2017YFA0206703) the National Natural Science Foundation of China(No.21671183) the Project of State Key Laboratory of Environment-Friendly Energy Materials(SWUST,Nos.19FKSY16 and 18ZD320304) 

出 版 物：《Nano Research》 (纳米研究（英文版）)

年 卷 期：2020年第13卷第12期

页      码：3315-3320页

摘      要：Rationally designing sulfur hosts with the functions of confining lithium polysulfides(LiPSs)and promoting sulfur reaction kinetics is critically important to the real implementation of lithium-sulfur(Li-S)***,the defect-rich carbon black(CB)as sulfur host was successfully constructed through a rationally regulated defect ***-obtained defect-rich CB can act as an active electrocatalyst to enable the sulfur redox reaction kinetics,which could be regarded as effective inhibitor to alleviate the LiPS *** expected,the cathode consisting of sulfur and defect-rich CB presents a high rate capacity of 783.8 mA·h·g^−1 at 4 C and a low capacity decay of only 0.07% per cycle at 2 C over 500 cycles,showing favorable electrochemical *** strategy in this investigation paves a promising way to the design of active electrocatalysts for realizing commercially viable Li-S batteries.

主 题 词：Li-S chemistry defect engineering carbon black sulfur reaction kinetics 

学科分类：081704[081704] 07[理学] 070304[070304] 08[工学] 0817[工学-轻工类] 0703[理学-化学类] 

核心收录：

D　O　I：10.1007/s12274-020-3009-0

馆 藏 号：203981622...