Progress on High Voltage PEO-based Polymer Solid Electrolytes in Lithium Batteries

• Published in: Chemical research in Chinese universities Vol. 38; no. 3; pp. 735 - 743
• Main Authors: Hou, Wenhui, Ou, Yu, Liu, Kai
• Format: Journal Article
• Language: English
• Published: Changchun Jilin University and The Editorial Department of Chemical Research in Chinese Universities 01.06.2022; Springer Nature B.V
• Subjects: Analytical Chemistry; Chemistry; Chemistry and Materials Science; Chemistry/Food Science; Design modifications; Electrolytes; Ethylene oxide; High voltages; Inorganic Chemistry; Lithium; Lithium batteries; Molten salt electrolytes; Organic Chemistry; Physical Chemistry; Polyethylene oxide; Polymers; Review; Solid electrolytes; Lithium battery; Molecular design; Poly(ethylene oxide); Interface modification; High voltage
• ISSN: 1005-9040; 2210-3171
• DOI: 10.1007/s40242-022-2065-2

Polymer electrolytes have attracted great interest for next-generation lithium-based batteries on account of safety and high energy density. In this review, we assess recent progress on the design of poly(ethylene oxide)(PEO)-based solid polymer electrolytes in high voltage lithium batteries and identify possible side reactions between PEO-based electrolytes and existing cathodes. We provide an overview of the ways to enhance high voltage resistance of PEO-based electrolytes. Those include components blend, molecular design and interface modification. With these efforts, we want to present new insights into rational design of PEO-based electrolytes to develop solid-state lithium batteries for advanced performance.