Lignin derived hierarchical porous carbon with extremely suppressed polyselenide shuttling for high-capacity and long-cycle-life lithium-selenium batteries

作     者：Pengfei Lu Fangyan Liu Feng Zhou Jieqiong Qin Haodong Shi Zhong-Shuai Wu Pengfei Lu;Fangyan Liu;Feng Zhou;Jieqiong Qin;Haodong Shi;Zhong-Shuai Wu

作者机构：State Key Laboratory of CatalysisDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina Dalian National Laboratory for Clean EnergyChinese Academy of SciencesDalian 116023LiaoningChina University of Chinese Academy of SciencesShijingshan DistrictBeijing 100049China 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2021年第30卷第4期

页      面：476-483页

核心收录：

学科分类：081702[工学-化学工艺] 0808[工学-电气工程] 08[工学] 0817[工学-化学工程与技术] 

基　　金：financially supported by the National Key R&D Program of China(Grants 2016YBF0100100,2016YFA0200200) the National Natural Science Foundation of China(Grants 51872283,21805273) the Liaoning Bai Qian Wan Talents Program,Natural Science Foundation of Liaoning Province,Joint Research Fund Liaoning-Shenyang National Laboratory for Materials Science(Grant 20180510038) the Liao Ning Revitalization Talents Program(Grant XLYC1807153),DICP(DICP ZZBS201708,DICP ZZBS201802,DICP I202032),DNL Cooperation Fund,CAS(DNL180310,DNL180308,DNL201912,and DNL201915),DICP&QIBEBT(Grant DICP&QIBEBT UN201702) 

主　　题：Lignin Hierarchical porous carbon Lithium selenium battery Long cycling stability Energy storage 

摘      要：Lithium-selenium(Li-Se)batteries have attracted considerable attentions for next-generation energy storage systems owing to high volumetric capacity of 3265 m Ah cm^(-3) and excellent electronic conductivity(~10^(-5)S cm^(-1))of ***,the shuttling effect and capacity fading prevent their wide *** we report a low-cost strategy for scalable fabrication of lignin derived hierarchical porous carbon(LHPC)as a new high-loading Se host for high-capacity and long-term cycling Li-Se batteries in carbonate *** resulting LHPC exhibits three-dimensional(3D)hierarchically porous structure,high specific surface area of 1696 m^(2) g^(-1),and hetero-atom doping(O,S),which can effectively confine the Se particles into the micropores,and meanwhile,offer effective chemical binding sites for selenides from hetero-atoms(O,S).As a result,our Li-Se batteries based on Se@LHPC demonstrate high capacity of 450 m Ah g^(-1) at 0.5 C after 500 cycles,with a low capacity fading rate of only 0.027%.The theoretical simulation confirmed the strong affinity of selenides on the O and S sites of LHPC effectively mitigating the Se ***,our strategy of using lignin as the low-cost precursor of hierarchically porous carbon for high-loading Se host offers new opportunities for high-capacity and long-life Li-Se batteries.