LDHs derived nanoparticle-stacked metal nitride as interlayer for long-life lithium sulfur batteries

作     者：Zhen Li Zhaoling Ma Yanyong Wang Ru Chen Zhenjun Wu Shuangyin Wang 

作者机构：State Key Laboratory of Chem/Bio-Sensing and Chemometrics Provincial Hunan Key Laboratory for Graphene Materials and Devices College of Chemistry and Chemical Engineering Hunan University Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province Shenzhen University 

出 版 物：《Science Bulletin》 (科学通报（英文版）)

年 卷 期：2018年第63卷第3期

页      面：169-175页

核心收录：

学科分类：0808[工学-电气工程] 07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China(21701043,51402100,50702020,21573066 and 81171461) the Provincial Natural Science Foundation of Hunan(2016JJ1006,2016TP1009 and 11JJ4013) the Fundamental Research Funds for the Central Universities the Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province 

主　　题：Nanoparticle stacked structure Metal nitride InterlayerLithium polysulfides Li S batteries 

摘      要：Shuttle effect is one of the most serious disadvantages in lithium-sulfur battery which results in poor cycle performance and hinders the commercialization of Li-S *** reduce the dissolution of polysulfides into the electrolyte and prolong the cycling stability,nanoparticle-stacked metal nitride derived from layered double hydroxides(LDHs)as an interlayer was inserted between sulfur cathode and separator to confine polysulfides by physical and chemical ***,the surface of metal nitride will form an oxide passivation *** passivation layer possesses hydrophilic metal-O group and provides a polar surface for strong binding with ***’s more,the nanoparticlesstacked structure could immerge and retain electrolyte well,which could enhance the ability of promoting the electron exchange *** sulfur electrode with nanoparticle-stacked metal nitride interlayer has an excellent cycle performance owing to the interactions between metal nitride and *** battery delivered an initial capacity of 764.6 m Ahg^(-1) and still possesses a capacity of 477.5 mAhg^(-1) with the retention of 62.4% after 800 cycles.