Shanghai Energy New Materials Technology Co., Ltd.

Yongle Chen

Alex Cheng

Fangbo He

Hui Chen

Honggui Deng

Weiqiang Wang

Xiaoming Su

Zhixue Wang

Cancan Huang

Xianyou Jiang

Lianjie Wang

Disclosed are a coating slurry for preparing a separator for an electrochemical device, comprising at least one polymer having an intrinsic viscosity ranging from 0.5 to 3.0 mL/g, at least one inorganic filler, and at least one solvent; a method for preparing the coating slurry; and a method for preparing a separator for an electrochemical device using the coating slurry; as well as a separator and an electrochemical device comprising the separator.

Coating slurries for preparing separators, separators for electrochemical devices and preparation methods therefor

A method for preparing a lithium-ion battery separator is disclosed. The method comprises: cooling and shaping a liquid-phase stabilization system containing polyethylene, stretching to enlarge pores, extracting with a solvent, and heat-setting to obtain a lithium-ion battery separator, wherein the stretching includes pre-stretching and synchronous bidirectional stretching, and the pre-stretching is completed before the synchronous bidirectional stretching.

Method for preparing lithium-ion battery separator

Growing community of inventors

Shanghai, China

Yongle Chen