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Metal-organic frameworks for solid-state electrolytes

Abstract

Solid-state batteries with metallic anodes have attracted great attention due to their high energy density and safety. As an indispensable part of these batteries, solid-state electrolytes (SSEs) with excellent mechanical strength and non-flammability play a significant role in suppressing the growth of dendrite and eliminating the risk of short circuits, whose development could greatly promote the overall battery performance. Recently, metal-organic frameworks (MOFs), a type of porous crystalline inorganic-organic materials, have shown potential for the fabrication of high-performance SSEs, which have become an emerging research direction. Benefiting from the rich porosity, controllable functionality and modularity, MOFs not only offer great opportunities for manipulating the physicochemical and electrochemical properties of SSEs, but also provide ideal platforms for investigating the underlying mechanisms of ion conduction and the structure-property relationships. In this perspective, the development of MOF-based SSEs, which include MOF-incorporated polymer hybrids, ionic liquid-laden MOF hybrids, and neat MOFs as SSEs, are outlined. By discussing the pioneer works, both the opportunities and challenges in each SSE category are presented. Additionally, some design principles for MOFs and MOF-based SSEs, as well as the future directions for further development are provided.

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Article information


Submitted
15 Jan 2020
Accepted
11 Jun 2020
First published
12 Jun 2020

Energy Environ. Sci., 2020, Accepted Manuscript
Article type
Perspective

Metal-organic frameworks for solid-state electrolytes

R. Zhao, Y. Wu, Z. Liang, L. Gao, W. Xia, Y. Zhao and R. Zou, Energy Environ. Sci., 2020, Accepted Manuscript , DOI: 10.1039/D0EE00153H

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