BATTERY SEPARATORS THAT INCLUDE A MICROPOROUS MEMBRANE AND A COATING

Disclosed herein are battery separators that include a microporous membrane and a coating. The coating may comprise, consist, or consist essentially of polymeric components, inorganic components, or combinations thereof. The battery separators described herein are, among other things, thinner, stronger, and more wettable with electrolyte than some prior battery separators. The battery separators may be used in secondary or rechargeable batteries, including lithium ion batteries. The batteries may be used in vehicles or devices such as cell phones, tablets, laptops, and e-vehicles. 本文公开了包括微孔膜和涂层的电池隔板。所述涂层可包含聚合物组分、无机组分或其组合、由或实质上由聚合物组分、无机组分或其组合组成。与一些现有技术的电池隔板相比，本文所述的电池隔板尤其更薄、更坚固且更易被电解质润湿。电池隔板可用于二次电池或可充电电池，包括锂离子电池。电池可用于车辆或设备，例如手机、平板电脑、笔记本电脑和电动汽车。