Challenges and Advances in Wide‐Temperature Electrolytes for Lithium‐Ion Batteries

• DOI: 10.1002/celc.202300759
• Publication Date: 2024-04-24T12:14:42Z
• Authors: Zixin Hong; Hui Tian; Zhenhan Fang; Yufeng Luo; Hengcai Wu; Fei Zhao; Qunqing Li; Shoushan Fan; Jiaping Wang
• Keywords: Energy density; Characterization

Abstract Lithium‐ion batteries (LIBs) have gained widespread attention due to their numerous advantages, including high energy density, prolonged cycle life, and environmental friendliness. Nevertheless, electrochemical performance deteriorates rapidly under extreme temperature conditions, accompanied by a series of safety issues. Electrolyte optimization has emerged as crucial feasible strategy expand the operational range LIBs. This review comprehensively summarizes challenges, advances, characterization methodologies electrolytes at both subzero elevated temperatures. Initially, it discusses degradation mechanisms different types temperatures, integrates recent offers insights into future research directions. Subsequently, various experimental techniques are systematically presented evaluate fundamental physical properties, stability, dynamic behaviors in non‐ambient environments. Finally, also provides relevant computational methods across electronic, molecular, macroscopic scales, explores application high‐throughput this field. valuable guidance for breaking working limits promoting development next‐generation