Year: 2025
Type: article
Abstract: As a potential substitute for traditional nonaqueous organic electrolytes, polymer‐based solid‐state electrolytes (SSEs) have the advantages of high safety, flexibility, low density, and easy processing. In contrast, they still face challenges, such as low room‐temperature ionic conductivity, narrow electrochemical windows, and poor mechanical strength. To realize the practical application of all‐solid‐state alkali metal ion batteries, there has been a lot of research on modifying the chemical composition or structure of polymer‐based SSEs. In this review, the transport mechanism of alkali metal ions in polymer SSEs is briefly introduced. We systematically summarize the recent strategies to improve polymer‐based SSEs, which have been validated in lithium‐ion batteries and sodium‐ion batteries, including lamellar electrolyte structure, dual salts hybridization, oriented filler alignment, and so on. Then, taking the unique properties of potassium metal and potassium ions into consideration, the feasibility of potassium‐ion batteries for practical use enabled by these novel modification methods is discussed.
Source: Carbon Energy
DOI: 10.1002/cey2.670
Authors: Tianqi Wang, Qiyao Yu, Zongyou Li, Yanjun Gao, Hanjiao Huang, Chunwei Dong, Caizhen Yang, Shaokun Chong, Wei Wang, Jianguo Zhang
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $3,200
OpenAlex ID: W4407408996