Issue 40, 2021

Single-ion conducting polymer electrolytes as a key jigsaw piece for next-generation battery applications

Abstract

As lithium-ion batteries have been the state-of-the-art electrochemical energy storage technology, the overwhelming demand for energy storage on a larger scale has triggered the development of next-generation battery technologies possessing high energy density, longer cycle lives, and enhanced safety. However, commercial liquid electrolytes have been plagued by safety issues due to their flammability and instability in contact with electrodes. Efforts have focused on developing such electrolytes by covalently immobilizing anionic groups onto a polymer backbone, which only allows Li+ cations to be mobile through the polymer matrix. Such ion-selective polymers provide many advantages over binary ionic conductors in battery operation, such as minimization of cell polarization and dendrite growth. In this review, the design, synthesis, fabrication, and class are reviewed to give insight into the physicochemical properties of single-ion conducting polymer electrolytes. The standard characterization method and remarkable electrochemical properties are further highlighted, and perspectives on current challenges and future directions are also discussed.

Graphical abstract: Single-ion conducting polymer electrolytes as a key jigsaw piece for next-generation battery applications

Article information

Article type
Perspective
Submitted
22 jul 2021
Accepted
31 aug 2021
First published
31 aug 2021
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY-NC license

Chem. Sci., 2021,12, 13248-13272

Single-ion conducting polymer electrolytes as a key jigsaw piece for next-generation battery applications

J. Gao, C. Wang, D. Han and D. Shin, Chem. Sci., 2021, 12, 13248 DOI: 10.1039/D1SC04023E

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