Versiegelte prismatische Sekundärbatterie und Herstellungsverfahren dafür

Details

Veröffentlichungs-Nr.

EP2413399

Aktenzeichen

EP11173780

Anmeldetag

13. Juli 2011

Veröffentlichung

20. März 2013

Erteilung

20. März 2013

Rechtsraum

EP

IPC

H01M2/26H01M2/22

Abstract

A prismatic sealed secondary battery according to an embodiment of the present invention includes an electrode assembly having stacked or wound positive and negative electrode substrate exposed portions and a pair of collector members electrically joined to the respective electrode substrate exposed portions. At least one of the electrode substrate exposed portions is split into two groups, and therebetween is disposed an intermediate member made of resin material and holding a plurality of connective conducting members. The collector member for the substrate exposed portions split into two groups is disposed on at least one of the outermost faces of the substrate exposed portions, and is electrically joined by a resistance welding method to the substrate exposed portions, together with the connecting conductive members of the intermediate member. This configuration lowers resistance of the electrode substrate exposed portions and the collector members and curbs variation in the welding strength.

Anmelder

Firma

SANYO ELECTRIC CO., LTD.

Land

🇯🇵 Japan

Fachgebiete