SnS_(2)nanoparticles embedded in sulfurized polyacrylonitrile composite fibers for high-performance potassium-ion batteries

作     者：Ruiling Li Lijuan Tong Yitong Jiang Yaxin Wang Jing Long Xiaochuan Chen Junxiong Wu Xiaoyan Li Yuming Chen 

作者机构：Engineering Research Center of Polymer Green Recycling of Ministry of EducationFujian Key Laboratory of Pollution Control&Resource ReuseCollege of Environmental and Resource Sciences and College of Carbon Neutral Modern IndustryFujian Normal UniversityFuzhouFujianChina 

出 版 物：《Interdisciplinary Materials》 (交叉学科材料（英文）)

年 卷 期：2024年第3卷第1期

页      面：150-159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：National Natural Science Foundation of China,Grant/Award Numbers:22109023,22179022,22209027 Industry‐University‐Research Joint Innovation Project of Fujian Province,Grant/Award Number:2021H6006 Youth Innovation Fund of Fujian Province,Grant/Award Numbers:2022J05046,2021J05043 FuXia Quan National Independent Innovation Demonstration Zone Collaborative Innovation Platform Project of Fuzhou Science and Technology Bureau,Grant/Award Number:2022‐P‐027 Award Program for Fujian Minjiang Scholar Professorship Talent Fund Program of Fujian Normal University 

主　　题：electrospinning encapsulation potassium‐ion batteries sulfurized polyacrylonitrile tin disulfide 

摘      要：Potassium-ion batteries(PIBs)have garnered significant attention as a promising alternative to commercial lithium-ion batteries(LIBs)due to abundant and cost-efficient potassium ***,the large size of potassium ions and the resulting sluggish reaction kinetics present major obstacles to the widespread use of ***,we present a simple method to ingeniously encapsulate SnS_(2)nanoparticles within sulfurized polyacrylonitrile(SPAN)fibers(SnS_(2)@SPAN)for serving as a high-performance PIB *** large interlayer spacing of SnS_(2)provides a fast transport channel for potassium ions during charge–discharge cycles,while the one-dimensional SPAN skeleton offers massive binding sites and shortens the diffusion path for potassium ions,facilitating faster reaction ***,the excellent ductility of SPAN can effectively accommodate the large volume changes that occur in SnS_(2)upon potassium-ion insertion,thereby enhancing the cyclic stability of SnS_(2).Benefiting from the above advantages,the SnS_(2)@SPAN composites exhibit impressive cyclability over 500 cycles at 4 A g−1,with a capacity retention rate close to 100%.This study provides an effective approach for stabilizing high-capacity PIB anode materials with large volume variations.