A Solvent-Free Covalent Organic Framework Single-Ion Conductor Based on Ion-Dipole Interaction for All-Solid-State Lithium Organic Batteries  

作　　者：Zhongping Li Kyeong-Seok Oh Jeong-Min Seo Wenliang Qin Soohyoung Lee Lipeng Zhai Changqing Li Jong-Beom Baek Sang-Young Lee 

机构地区：[1]Department of Chemical and Biomolecular Engineering,Yonsei University,50 Yonsei-Ro,Seodaemun-Gu,Seoul 03722,Republic of Korea [2]School of Energy and Chemical Engineering,Ulsan National Institute of Science and Technology(UNIST),50 UNIST-Gil,Eonyang-Eup,Ulju-Gun,Ulsan 44919,Republic of Korea [3]Henan Key Laboratory of Functional Salt Materials,Center for Advanced Materials Research,Zhongyuan University of Technology,Zhengzhou 450007,People’s Republic of China [4]Department of Battery Conflation Engineering,Yonsei University,50,Yonsei-Ro,Seodaemun-Gu,Seoul 03772,Republic of Korea [5]Department of Battery Engineering,Yonsei University,50,Yonsei-Ro,Seodaemun-Gu,Seoul 03772,Republic of Korea

出　　处：《Nano-Micro Letters》2024年第12期189-200,共12页纳微快报（英文版）

基　　金：supported by the Basic Science Research Program (No.RS-2024-00344021) through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and future Planning;the financial support from the National Natural Science Foundation of China (52103277);the Program for Science & Technology Innovation Talents in Universities of Henan Province (23HASTIT015);Natural Science Foundation of Henan Province (242300421073);supported by the Technology Innovation Program (20010960) funded by the Ministry of Trade, Industry & Energy (MOTIE, Korea)

摘　　要：Single-ion conductors based on covalent organic frameworks(COFs)have garnered attention as a potential alternative to currently prevalent inorganic ion conductors owing to their structural uniqueness and chemical versatility.However,the sluggish Li+conduction has hindered their practical applications.Here,we present a class of solvent-free COF single-ion conductors(Li-COF@P)based on weak ion-dipole interaction as opposed to traditional strong ion-ion interaction.The ion(Li+from the COF)-dipole(oxygen from poly(ethylene glycol)diacrylate embedded in the COF pores)interaction in the Li-COF@P promotes ion dissociation and Li+migration via directional ionic channels.Driven by this single-ion transport behavior,the Li-COF@P enables reversible Li plating/stripping on Li-metal electrodes and stable cycling performance(88.3%after 2000 cycles)in organic batteries(Li metal anode||5,5’-dimethyl-2,2’-bis-p-benzoquinone(Me2BBQ)cathode)under ambient operating conditions,highlighting the electrochemical viability of the Li-COF@P for all-solid-state organic batteries.

关 键 词：Solid organic single-ion conductors Solvent-free covalent organic frameworks All-solid-state Li organic batteries Ion-dipole interaction Pore functionalization 

分 类 号：TM912[电气工程—电力电子与电力传动]