Batteriemodul

Details

Veröffentlichungs-Nr.

EP3686963

Aktenzeichen

EP19195611

Anmeldetag

5. September 2019

Veröffentlichung

16. Dezember 2020

Erteilung

16. Dezember 2020

Rechtsraum

EP

IPC

H01M2/20H01M10/04H01M2/02

Abstract

The present disclosure relates to a battery module comprising a first battery unit (G1) and a second battery unit (G2), each of which comprises N secondary batteries (100), wherein N is an integer greater than or equal to 2, and each of the secondary batteries comprises a first electrode lead (121) and a second electrode lead (122) having opposite polarities. The first electrode lead (121) has a melting point higher than that of the second electrode lead (122), and N first electrode leads (121) of the first battery unit (G1) and N second electrode leads (122) of the second battery unit (G2) are arranged to form a layered construction. The battery module has a plurality of connection points distributed in the layered construction, the number of the connection points is greater than or equal to N, and each of the connection points is configured to electrically connect one of the first electrode leads (121) of the first battery unit (G1) to at least one of the second electrode leads (122) of the second battery unit (G2). In the battery module according to the embodiments of the present disclosure, generation of voids due to excessive plastic flow in the welding can be avoided, and welding strength and connection reliability of the electrode leads can be improved.

Anmelder

Firma

Contemporary Amperex Technology Co., Limited

Land

🇨🇳 China

Fachgebiete