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Room-temperature quasi-solid lithium metal batteries enabled by IL@HKUST-1 gel polymer electrolyte

Lookup NU author(s): Professor Mohamed MamloukORCiD, Professor Tao Wei

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Abstract

© 2026 The Chemical Industry and Engineering Society of China, and Chemical Industry Press Co., Ltd.Based on the confinement of the ionic liquid (IL) within the HKUST-1 metal–organic framework (MOF), this work successfully developed a novel gel polymer electrolyte (HKU-5), for room-temperature (RT) quasi-solid lithium metal batteries. X-ray diffraction, scanning electron microscopy, N2 adsorption-desorption isotherm analysis and different electrochemical characterizations were carried out. In Li|Li symmetric cells, HKU-5 enables stable lithium plating/stripping for over 800 h (0.1 mA·cm−2) and effectively suppresses lithium dendrite growth. When assembled Li|LiFePO4 full cells using HKU-5 as the separator, it exhibits excellent cycling stability and interfacial compatibility, retaining a discharge specific capacity of 151.2 mA·h·g−1 for 100 cycles at 0.5 C and RT. This study presents a promising IL@MOF-based strategy for developing next-generation electrolytes toward practical lithium metal batteries.

Publication metadata

Author(s): Zhu Y, Li J, Xiang L, He L, Su C, Li Z, Mamlouk M, Anatolyevich MK, Wei T

Publication type: Article

Publication status: Published

Journal: Chinese Journal of Chemical Engineering

Year: 2026

Volume: 96

Pages: 234-242

Print publication date: 01/08/2026

Online publication date: 02/06/2026

Acceptance date: 17/04/2026

ISSN (print): 1004-9541

ISSN (electronic): 2210-321X

Publisher: Materials China

URL: https://doi.org/10.1016/j.cjche.2026.04.015

DOI: 10.1016/j.cjche.2026.04.015

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