He Juanxia, Yang Lihong, Ruan Xingzhe, Liu Zechun, Liao Kezhang, Duan Qingshan, Zhan Yongzhong
School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China.
State Key Laboratory of Featured Metal Materials and Life-Cycle Safety for Composite Structures, Nanning 530004, China.
Polymers (Basel). 2024 Oct 14;16(20):2895. doi: 10.3390/polym16202895.
Lithium-ion batteries (LIBs) have been widely applied in electronic communication, transportation, aerospace, and other fields, among which separators are vital for their electrochemical stability and safety. Electrospun polyvinylidene fluoride (PVDF)-based separators have a large specific surface area, high porosity, and remarkable thermal stability, which significantly enhances the electrochemistry and safety of LIBs. First, this paper reviewed recent research hotspots and processes of electrospun PVDF-based LIB separators; then, their pivotal parameters influencing morphology, structures, and properties of separators, especially in the process of electrospinning solution preparation, electrospinning process, and post-treatment methods were summarized. Finally, the challenges of PVDF-based LIB separators were proposed and discussed, which paved the way for the application of electrospun PVDF-based separators in LIBs and the development of LIBs with high electrochemistry and security.
锂离子电池（LIBs）已广泛应用于电子通信、交通运输、航空航天等领域，其中隔膜对其电化学稳定性和安全性至关重要。基于静电纺丝聚偏氟乙烯（PVDF）的隔膜具有大比表面积、高孔隙率和显著的热稳定性，这显著提高了锂离子电池的电化学性能和安全性。首先，本文综述了基于静电纺丝PVDF的锂离子电池隔膜的研究热点和进展；然后，总结了影响隔膜形态、结构和性能的关键参数，特别是在静电纺丝溶液制备、静电纺丝过程和后处理方法方面。最后，提出并讨论了基于PVDF的锂离子电池隔膜面临的挑战，为基于静电纺丝PVDF的隔膜在锂离子电池中的应用以及高电化学性能和安全性的锂离子电池的发展铺平了道路。
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