摘要
隔膜作为锂离子电池的关键组件,其性能直接影响电池的循环寿命和安全性能。以聚乙烯、聚丙烯为代表的聚烯烃材料凭借低成本、高化学稳定性和高机械强度等特性,在锂离子电池领域获得广泛应用。系统综述了锂离子电池用聚烯烃隔膜的研究进展,涵盖了其基本特性、制备工艺、性能挑战、改性策略及各种改性策略对提升电池安全性能和电化学性能的作用机理。通过结合微观结构表征,详细探讨了聚烯烃隔膜的多功能化设计思路。最后,基于当前研究进展,对该领域的未来发展趋势进行了前瞻性展望。
As a key component of lithium-ion batteries,the separator's performance directly affects their cycle life and safety.Polyolefin materials,such as polyethylene and polypropylene,are widely used as separators in lithium-ion batteries due to their low cost,high chemical stability,and high mechanical strength.The research progress on polyolefin separators for lithium-ion batteries was systematically reviewed.The review covered their basic properties,preparation processes,performance challenges,modification strategies,and the mechanisms by which various modification strategies enhance the safety and electrochemical performance of batteries.By combining microstructural characterization results,the multifunctional design principles underlying polyolefin separators were discussed in detail.Finally,future research directions in this field were prospected based on the current research progress.
作者
杨娇
周志辉
夏璐
王诗怡
YANG Jiao;ZHOU Zhihui;XIALu;WANG Shiyi(School of Resources and Environmental Engineering,Wuhan University of Science and Technology,Wuhan Hubei 430000,China)
出处
《电源技术》
北大核心
2026年第2期205-215,共11页
Chinese Journal of Power Sources
基金
微波辅助湿凝胶转化制备渗透气化分子筛内膜及工业化应用(2024040701010053)
晶种诱导湿凝胶低碳制备渗透汽化无机膜关键技术及工业应用(2024010702030096)
钴钼基双功能催化剂可控制备及其海水电解制氢机制研究(2024AFC005)。
关键词
聚烯烃隔膜
改性
锂离子电池
安全性
polyolefin separator
modification
lithium-ion battery
safety
