Regulating the non-effective carriers transport for high-performance lithium metal batteries

作     者：Simeng Wang Youchun Yu Shaotong Fu Hongtao Li Jiajia Huang Simeng Wang;Youchun Yu;Shaotong Fu;Hongtao Li;Jiajia Huang

作者机构：Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China School of Chemical EngineeringUniversity of Chinese Academy of SciencesBeijing 100049China Haike Group Research Institute of Innovation&TechnologyDongying 257000ShangdongChina 

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

年 卷 期：2024年第92卷第5期

页      面：132-141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：financially supported by the National Key Research and Development Program of China(No.2021YFB2400300) the IPE Talent Start-up Program of Institute of Process Engineering of Chinese Academy of Sciences(Grant No.E0293507) 

主　　题：Functional separators Metal-organic frameworks 3D continuous ion transport networks Electrospinning Lithium metal batteries 

摘      要：The absence of control over carriers transport during electrochemical cycling,accompanied by the deterioration of the solid electrolyte interphase(SEI)and the growth of lithium dendrites,has hindered the development of lithium metal ***,a separator complexion consisting of polyacrylonitrile(PAN)nanofiber and MIL-101(Cr)particles prepared by electrospinning is proposed to bind the anions from the electrolyte utilizing abundant effective open metal sites in the MIL-101(Cr)particles to modulate the transport of non-effective *** binding effect of the PANM separator promotes uniform lithium metal deposition and enhances the stability of the SEI layer and long cycling stability of ultra-high nickel layered oxide *** PANM as the Li||NCM96 separator enables high-voltage cycling stability,maintaining 72%capacity retention after 800 cycles at a charging and discharging rate of 0.2 C at a cut-off voltage of 4.5 V and 0°***,the excellent high-rate performance delivers a specific capacity of 156.3 mA h g^(-1) at 10 *** addition,outstanding cycling performance is realized from−20 to 60°*** separator engineering facilitates the electrochemical performance of lithium metal batteries and enlightens a facile and promising strategy to develop fast charge/discharge over a wide range of temperatures.