Superfast and solvent-free core-shell assembly of sulfur/carbon active particles by hail-inspired nanostorm technology for high-energy-density Li-S batteries

作     者：Lanxiang Feng Zhiwei Zhu Yan He Yuan Ji Xuewe He Lei Jing Mingbo Yang Wei Yang Yu Wang Lanxiang Feng;Zhiwei Zhu;Yan He;Yuan Ji;Xuewe He;Lei Jing;Mingbo Yang;Wei Yang;Yu Wang

作者机构：College of Polymer Science and EngineeringState Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengdu 610065SichuanChina 

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

年 卷 期：2022年第31卷第2期

页      面：565-573页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：supported by the Double First-Class Construction Funds of Sichuan University and National Natural Science Foundation of China(NNSFC) financial support from the National Science Foundation of China(51873126,51422305,51721091) 

主　　题：Core-shell assembly Sulfur/carbon secondary active particles High energy density lithium sulfur batteries Thick sulfur electrode Hail-inspired sulfur nanostorm technology 

摘      要：The demand on low-carbon emission fabrication technologies for energy storage materials is increasing dramatically with the global interest on carbon *** a promising active material for metal-sulfur batteries,sulfur is of great interest due to its high-energy-density and ***,there is a lack of industry-friendly and low-carbon fabrication strategies for high-performance sulfur-based active particles,which,however,is in critical need by their practical ***,based on a hail-inspired sulfur nano-storm(HSN)technology developed in our lab,we report an energy-saving,solvent-free strategy for producing core-shell sulfur/carbon electrode particles(CNT@AC-S)in *** fabrication of the CNT@AC-S electrode particles only involves low-cost sulfur blocks,commercial carbon nanotubes(CNT)and activated carbon(AC)micro-particles with high specific surface *** on the above core-shell CNT@AC-S particles,sulfur cathode with a high sulfur-loading of 9.2 mg cm^(-2) delivers a stable area capacity of 6.6 mAh cm^(-2) over 100 ***,even for sulfur cathode with a super-high sulfur content(72 wt%over the whole electrode),it still delivers a high area capacity of 9 mAh cm^(-2) over50 cycles in a quasi-lean electrolyte *** a nutshell,this study brings a green and industryfriendly fabrication strategy for cost-effective production of rationally designed S-rich electrode particles.