公开(公告)号：US20190140328A1

公开(公告)日：2019-05-09

申请号：US16138451

申请日：2018-09-21

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Zhenhua LI ,  Haizu JIN ,  Xing LI

IPC: H01M10/637 ,  H01M4/36 ,  H01M4/62 ,  H01M10/0525 ,  H01G11/28 ,  H01G11/48 ,  H01G11/32 ,  H01G11/46

Abstract: This application relates to an electrode plate, an electrochemical device and a safety coating. The electrode plate comprises a current collector, an electrode active material layer and a safety coating disposed between the current collector and the electrode active material layer. The safety coating layer comprises fluorinated polyolefin and/or chlorinated polyolefin polymer matrix, a conductive material and an inorganic filler. The electrode plate can quickly cut off the circuit when the electrochemical device (for example, a capacitor, a primary battery, or a secondary battery) is in a high temperature condition or an internal short circuit occurs, and thus it may improve the high temperature safety performance of the electrochemical device.