Hydrogen-bonded organic framework-ionic liquid composite quasisolid electrolyte for high-performance lithium battery

作     者：Junmei Zhang Yatao Wu Chenye Wang Yong Liu Zhirong Yang Shiyue Zhou Wenpeng Li Wenjia Wu Jingtao Wang 

作者机构：School of Chemical EngineeringZhengzhou UniversityZhengzhou 450001China 

出 版 物：《Nano Research》 (纳米研究（英文版）)

年 卷 期：2025年第18卷第1期

页      面：332-340页

核心收录：

学科分类：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：support from National Key R&D Program of China(No.2022YFB3805204) Joint Foundation for Science and Technology Research&Development Plan of Henan Province(Nos.222301420003 and 232301420038) China Postdoctoral Science Foundation(No.2022TQ0293) Key Science and Technology Project of Henan Province(No.221100240200-06) Center of Advanced Analysis&Gene Sequencing,Zhengzhou University is also highly acknowledged 

主　　题：ionic liquid hydrogen-bonded organic framework low-temperature ionic conductivity lithium-ion transference number quasi-solid electrolyte 

摘      要：Ionic liquids(ILs)hold great promise as highperformance electrolyte material due to their unique advantages including nonvolatility,high thermal stability and high ionic ***,the IL-based electrolytes always suffer from serious ion aggregation and high viscosity at low temperatures,leading to significantly decline in ionic ***,hydrogen-bonded organic framework-ionic liquid composite quasi-solid electrolyte(high temperature treatment(HT)-HOF-IL CQSE)was prepared through confining the IL electrolytes(ILEs)into the pore of HOF lamellar *** weak hydrogen bonding interactions within HOF nanosheets,together with the generated interactions between ILE and HOF,enable uniform and continuous distribution of ILE in HOF lamellar *** effectively inhibits the ion migration of ILE,which meanwhile serves as Li+transfer sites,affording high ionic conductivity of 5.7×10^(-5)S·cm-1 at-60 ℃,with high lithium-ion transference number of 0.69,whereas ILEs usually lose ionic conduction ability at such low *** assembled Li symmetrical cell can stably cycle at 0.2 mA·cm^(-2)and^(-2)0 ℃ for more than 1500 *** LiFePO_(4)|HT-HOF-IL CQSE|Li cell shows excellent cycling performance at 0.5 C at a wide temperature range of^(-2)0 to 60 ℃.This work may pave a new avenue for the development of high-performance IL-based composite electrolytes.