Verfahren zur Herstellung einer Sekundärbatterie mit Wasserfreiem Elektrolyt

Details

Veröffentlichungs-Nr.

EP4712199

Anmeldetag

31. Juli 2025

Veröffentlichung

18. März 2026

Rechtsraum

EP

IPC

(HITACHI MAXELL et al.)(LG CHEMICAL LTD et al.) [P]

Abstract

A method of manufacturing a non-aqueous electrolyte secondary battery includes the steps of obtaining a battery assembly, charging, and sealing. The battery assembly includes an electrode body, a non-aqueous electrolyte solution, and a battery case including a through hole. The step of charging involves charging the battery assembly. The step of sealing involves sealing the through hole with a sealing member after the charging step. In the step of charging, the charging is performed under a charging condition that causes a temperature of a gas inside the battery case increases. The step of sealing is performed while keeping the temperature inside the battery case having been increased. After the step of sealing, the temperature inside the battery case decreases, and the gas inside the battery case contracts, to thereby cause a contraction and/or an internal pressure decrease of the battery case.

Anmelder

Firma

Prime Planet Energy & Solutions, Inc.

Land

🇯🇵 Japan