Flame-retardant ammonium polyphosphate/MXene decorated carbon foam materials as polysulfide traps for fire-safe and stable lithium-sulfur batteries

作     者：Yang Li Yong-Cheng Zhu Sowjanya Vallem Man Li Seunghyun Song Tao Chen Long-Cheng Tang Joonho Bae Yang Li;Yong-Cheng Zhu;Sowjanya Vallem;Man Li;Seunghyun Song;Tao Chen;Long-Cheng Tang;Joonho Bae

作者机构：Department of PhysicsGachon UniversitySeongnam-siGyeonggi-do 13120South Korea Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of EducationCollege of MaterialChemistry and Chemical EngineeringHangzhou Normal UniversityHangzhou 311121ZhejiangChina Key laboratory of Advanced Energy Materials Chemistry(Ministry of Education)College of ChemistryNankai UniversityTianjin 300071China School of Materials EngineeringChangzhou Vocational Institute of Industry TechnologyChangzhou 213164JiangsuChina 

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

年 卷 期：2024年第89卷第2期

页      面：313-323,I0008页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 

基　　金：supported by the National Research Foundation of Korea(NRF-2021R1A2C1008272) supported by the Institute of Information&communications Technology Planning&Evaluation(IITP)grant funded by the Korean government(MSIT)(No.2021-0-00259,Development of a Fast Wireless Charging System for Portable Terminals with improved heat dissipation and shielding performance) supported by the Applied Basic Research Program of Changzhou City(CJ20220030) 

主　　题：Flame-retardant MXene Ammonium polyphosphate Safety Lithium-sulfur battery 

摘      要：Lithium-sulfur(Li-S)batteries are one of the most promising modern-day energy supply systems because of their high theoretical energy density and low ***,the development of high-energy density Li-S batteries with high loading of flammable sulfur faces the challenges of electrochemical performance degradation owing to the shuttle effect and safety issues related to fire or explosion *** this work,we report a three-dimensional(3D)conductive nitrogen-doped carbon foam supported electrostatic self-assembled MXene-ammonium polyphosphate(NCF-MXene-APP)layer as a heat-resistant,thermally-insulated,flame-retardant,and freestanding host for Li-S batteries with a facile and costeffective synthesis ***,through the use of NCF-MXene-APP hosts that strongly anchor polysulfides,the Li-S batteries demonstrate outstanding electrochemical properties,including a high initial discharge capacity of 1191.6 mA h g^(-1),excellent rate capacity of 755.0 mA h g^(-1)at 1 C,and long-term cycling stability with an extremely low-capacity decay rate of 0.12%per cycle at 2 *** importantly,these batteries can continue to operate reliably under high temperature or flame attack ***,this study provides valuable insights into the design of safe high-performance Li-S batteries.