ZIF-8-functionalized polymer electrolyte with enhanced performance for high-temperature solid-state lithium metal batteries

作     者：Jin-Fang Zhang Yuan-Yuan Wang Xiao-Feng Li Gen-Yan Zhang Ying Li Rong Liu Sheng-Liang Hu Tuo-Ping Hu Ruth Knibbe Qing-Bing Xia Jin-Fang Zhang;Yuan-Yuan Wang;Xiao-Feng Li;Gen-Yan Zhang;Ying Li;Rong Liu;Sheng-Liang Hu;Tuo-Ping Hu;Ruth Knibbe;Qing-Bing Xia

作者机构：School of Materials Science and EngineeringNorth University of ChinaTaiyuan030051China School of Energy and Power EngineeringNorth University of ChinaTaiyuan030051China School of Chemistry and Chemical EngineeringNorth University of ChinaTaiyuan030051China School of Mechanical and Mining EngineeringThe University of QueenslandBrisbaneQLD4072Australia 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2024年第43卷第3期

页      面：984-994页

核心收录：

学科分类：0808[工学-电气工程] 081704[工学-应用化学] 08[工学] 0817[工学-化学工程与技术] 

基　　金：financially supported by the Fundamental Research Program of Shanxi Province(No.202103021224177) the Science and Technology Cooperation and Exchange Special Project of Shanxi Province(No.202204041101005) the Key Laboratory Research Foundation of North University of China and Shanxi Key Laboratory of Advanced Carbon Electrode Materials(No.202104010910019) the funding support from the Australian Research Council(No.DP200102573) 

主　　题：Lithium metal batteries Metal-organic frameworks Solid polymer electrolytes Lithium metal anode Interfacial compatibility 

摘      要：Solid polymer electrolytes(SPEs)with high ionic conductivity are desirable for solid-state lithium metal batteries(SSLMBs)to achieve enhanced safety and energy *** nanofillers into a polymeric matrix to develop nanocomposite solid electrolytes(NCSEs)has become a promising method for improving the ionic conductivity of the ***,a novel ZIF-8-functionalized NCSE was prepared for high-temperature S SLMB s using an in situ radical polymerization *** is found that the ZIF-8 nanoparticles could reduce the crystallinity of polymer segments and offer a Lewis acid surface that promotes the dissociation of lithium bis(trifluoromethanesulfonyl)imide(LiTFSI)and stabilizes the TFSI^(-) anion ***,the as-prepared NCSE exhibits an outstanding ionic conductivity of 1.63×10^(-3)S·cm^(-1),an electrochem ical stability window of 5.0 V at 80℃,and excellent interface compatibility with lithium metal anode with a stable polarization over 2000 ***,the assembled SSLMBs with LiFePO_(4)cathode show dendrite-free Li-metal surface,good rate capability,and stable cycling stability with a capacity retention of 70%over 1000 cycles at a high temperature of 80℃.This work provides valuable insights into promoting the ionic conductivity of SPEs.