Negativelektrodenaufschlämmung und Herstellungsverfahren Dafür, Negativelektrodenfolie, Natriumsekundärbatterie und Elektrische Vorrichtung

Details

Veröffentlichungs-Nr.

EP4807805

Anmeldetag

16. Mai 2024

Veröffentlichung

22. Mai 2025

Rechtsraum

EP

IPC

H01M4/36, H01M4/62, H01M10/054

Abstract

A negative electrode slurry and a preparation method therefor, a negative electrode sheet, a sodium secondary battery, and an electric device. The negative electrode slurry comprises a negative electrode active material and a modifier that coats the surface of the negative electrode active material. The negative electrode active material comprises one or more of hard carbon and graphite coated with hard carbon. The modifier comprises carboxymethyl cellulose salt having a weight-average molecular weight of 20,000-150,000. The negative electrode slurry exhibits a low occurrence degree of gelation and foaming, and can improve the processing performance and the storage performance of the sodium secondary battery.

Anmelder

Firma

Contemporary Amperex Technology Co., Limited

Land

🇨🇳 China

Fachgebiete