公开(公告)号：US20190190006A1

公开(公告)日：2019-06-20

申请号：US16152199

申请日：2018-10-04

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Ying WANG ,  Yongsheng GUO ,  Chengdu LIANG ,  Xiqing WANG ,  Shuojian SU ,  Qian LIU

IPC: H01M4/136 ,  H01M4/58 ,  H01M4/62 ,  H01M10/0525

CPC classification number: H01M4/136 ,  H01M4/5825 ,  H01M4/622 ,  H01M4/623 ,  H01M4/625 ,  H01M10/0525 ,  H01M10/054 ,  H01M2004/021 ,  H01M2004/028

Abstract: The present disclosure provides a positive electrode plate and an electrochemical battery. The positive electrode plate comprises a positive electrode current collector and a positive electrode film. The positive electrode film is provided on the positive electrode current collector and comprises a positive electrode active material and a binder. The positive electrode active material comprises a prussian blue analogue material, the binder is an oil-soluble binder, an area density of the positive electrode film is 5 mg/cm2˜30 mg/cm2. In the positive electrode film of the present disclosure, the prussian blue analogue material is used together with the oil-soluble binder, and the area density of the positive electrode film is controlled within a certain range, so that introduction of the water molecule can be reduced during the preparation process and coating process of a positive electrode slurry, and cycle performance of the electrochemical battery can be improved.