Boosting the cycling stability of all-solid-state lithium metal batteries through MOF-based polymeric protective layers

作     者：Hongfei Bao Diancheng Chen Jiaqi Cao Pengfeng Jiang Kaili Li Runtao Liu Yuling Zhao Yichun Zheng Beiqi Liao Yaming Zhang Xia Lu Yang Sun 

作者机构：School of MaterialsShenzhen Campus of Sun Yat-sen UniversityShenzhen 518107GuangdongChina 

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

年 卷 期：2024年第95卷第8期

页      面：511-518,I0011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 Key R&D Program of China(2022YFB2404700) the Natural Science Foundation of China(22109186) the Guangdong Innovative and Entrepreneurial Research Team Program(2021ZT09L227) supported by the Fundamental Research Funds for the Central Universities,Sun Yat-sen University(22hytd01) 

主　　题：All-solid-state Li metal battery MOF-based polymeric layer Li dendrite Interfacial contact LATP electrolyte stability 

摘      要：Solid-state electrolytes(SSEs)play a pivotal role in advancing next-generation lithium metal battery ***,they commonly encounter substantial interfacial resistance and poor stability when interfacing with lithium metal,hindering practical ***,we introduce a flexible metal-organic framework(MOF:NUS-6)-incorporated polymeric layer,denoted as NP,designed to protect the sodium superionic conductor(NASICON)-type Li_(1.3)Al_(0.3)Ti_(1.7)(PO_(4))_(3)(LATP)electrolyte from Li metal *** NP matrix establishes a soft interface with the LATP surface,effectively reducing voids and gaps that may arise between the LATP electrolyte and Li ***,the MOF component in NP enhances ionic conductivity,offers abundant Li^(+)transport sites,and provides hierarchical ion channels,ensuring a homogeneous Li^(+)flow and thus effectively inhibiting Li dendrite *** NP,we fabricate Li symmetrical cells cycled for over 1600 h at 0.2 mA cm^(-2)and all-solid-state LiINP-LATPI LiFePO_(4)batteries,achieving a remarkable 99.3%capacity retention after 200 cycles at 0.2 *** work outlines a general strategy for designing long-lasting and stable solid-state Li metal batteries.