Sekundärbatterie und Zusammengesetzte Batterie und Herstellungsverfahren dafür

Details

Veröffentlichungs-Nr.

EP4187707

Aktenzeichen

EP22209372

Anmeldetag

24. November 2022

Veröffentlichung

2. April 2025

Erteilung

2. April 2025

Rechtsraum

EP

IPC

H01M50/566H01M50/553H01M50/55H01M50/15H01M50/176H01M50/505H01M50/514H01M50/531H01M50/583

Abstract

Provided is art that allows joining an external conductive member and a bus bar more stably. A method for producing a secondary battery (1) disclosed herein has: an attachment step; an arrangement step; a covering step; and, a joining step. The external conductive member (35) has a recess (35a) sunk from the upper surface (35u), around a through-hole (35h). In the joining step, the external conductive member (35) and the terminal (30) are joined in a state where an edge portion of a cover member (2) is disposed between a planned joint portion (31w), and an outer peripheral edge of the recess (35a), in a cross-sectional view along a direction of penetration into the through-hole (35h).

Anmelder

Firma

Prime Planet Energy & Solutions, Inc.

Land

🇯🇵 Japan

Fachgebiete