Issue 59, 2022

Strategies and characterization methods for achieving high performance PEO-based solid-state lithium-ion batteries

Abstract

Polyethylene oxide (PEO) based polymer electrolytes have been widely used in solid-state lithium batteries (SSBs) owing to the high solubility of lithium salt, favourable ionic conductivity, flexibility for improved interfacial contact and scalable processing. In this work, we summarize the main limitations remaining to be solved before the large-scale commercialization of PEO-based SSBs, including (1) improving ionic conductivity toward high-rate performance and lower operating temperature, (2) enhancing mechanical strength for improved lithium dendrite resistance and large-scale processing, (3) strengthening electrochemical stability to match high energy density electrodes with high voltage, and (4) achieving high thermal stability toward safe operation. Meanwhile, the characterization methods to investigate the ion transportation mechanism, lithium dendrite growth and decomposition reaction are also discussed.

Graphical abstract: Strategies and characterization methods for achieving high performance PEO-based solid-state lithium-ion batteries

Article information

Article type
Feature Article
Submitted
23 ኤፕሪ 2022
Accepted
14 ጁን 2022
First published
14 ጁን 2022

Chem. Commun., 2022,58, 8182-8193

Strategies and characterization methods for achieving high performance PEO-based solid-state lithium-ion batteries

B. Guo, Y. Fu, J. Wang, Y. Gong, Y. Zhao, K. Yang, S. Zhou, L. Liu, S. Yang, X. Liu and F. Pan, Chem. Commun., 2022, 58, 8182 DOI: 10.1039/D2CC02306G

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