Positivelektrodenplatte und Elektrochemische Vorrichtung

Details

Veröffentlichungs-Nr.

EP3654427

Aktenzeichen

EP19179973

Anmeldetag

13. Juni 2019

Veröffentlichung

18. Dezember 2024

Erteilung

18. Dezember 2024

Rechtsraum

EP

IPC

H01M4/66H01M10/0525

Abstract

The present invention relates to a positive electrode plate and an electrochemical device. The positive electrode plate includes a current collector (10), a positive active material layer (14), and a binding layer (12) disposed between the current collector (10) and the positive active material layer (14), the binding layer (12) comprising a polymer material, a conductive material, and an inorganic filler, wherein the polymer material comprises a binding layer matrix and the binding layer matrix is an oil-dispersible polymer material having a solubility in NMP at 130 °C for 5 minutes, which is 30% or less of the solubility of PVDF under the same conditions. The positive electrode plate can improve the safety performance of the electrochemical device (for example, a capacitor, a primary battery, a secondary battery, or the like) under abnormal conditions such as nailing penetration.

Anmelder

Firmen

Contemporary Amperex Technology (Hong Kong) Limited
Contemporary Amperex Technology Co., Limited

Land

🇭🇰 Hongkong

Fachgebiete