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Li-ion Battery Separator

New Material

新材料

Li-ion Battery Separator
Li-ion Battery Separator

锂电隔膜是锂电池四大主材之一,占材料成本比重为5-10%,隔膜的性能决定了电池的界面结构、内阻等,直接影响电池的容量、循环以及安全性能等特性,性能优异的隔膜对提高电池的综合性能具有重要的作用。隔膜的主要作用是使电池的正、负极分隔开来,防止两极接触而短路,此外还具有能使电解质离子通过的功能。隔膜材质是不导电的,其物理化学性质对电池的性能有很大的影响。电池的种类不同,采用的隔膜也不同。 Lithium battery separator is one of the four main materials of lithium battery, accounting for 5-10% of the material cost. The performance of the separator determines the interface structure and internal resistance of the battery, which directly affects the capacity, cycle and safety performance of the battery. The separator with excellent performance plays an important role in improving the comprehensive performance of the battery. The main function of the separator is to separate the positive and negative electrodes of the battery, prevent the short circuit caused by the contact between the two poles. In addition, it can make the electrolyte ions pass through. The diaphragm material is non-conductive, and its physical and chemical properties have a great impact on the performance of the battery. Different types of batteries use different separators.

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