Abstract
As one of the inner layer components of lithium-ion batteries, the separator plays the role of blocking the positive and negative electrodes and providing channels for the movement of lithium ions. This chapter mainly expounds the use and performance characteristics of lithium-ion battery separators, the research progress of the three most widely used lithium battery separators, and systematically analyzes the characteristics of various thin-film materials, as well as the current four major processes for preparing separators: dry and wet. Method, centrifugal spinning method, electrospinning method, etc., and the future development direction of lithium-ion battery separator is prospected.
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