Research and Development on the Separators of Li-ion Batteries

Abstract

With the rapid development of the lithium-ion batteries, the lithium-ion battery separator, as a critical component of lithium-ion batteries, had been extensively studied. In this paper, the main function and performance indicators about the separator materials, recent research and development status at home and abroad of lithium ion battery separators were reviewed. The types and existing problems of mainstream diaphragms in the existing market were described. The production methods of the separators were discussed mainly. It simply introduces the status of the separator’s modification and development of new type of battery separator. Finally, the future development trend of battery separators was forecasted.