Explosionsgeschütztes Ventil, Batterie und Verarbeitungsverfahren für ein Explosionsgeschütztes Ventil

Details

Veröffentlichungs-Nr.

EP4738586

Anmeldetag

28. Juni 2024

Veröffentlichung

2. Januar 2025

Rechtsraum

EP

Abstract

The present application relates to the technical field of batteries, and discloses an explosion-proof valve, a battery, and a processing method for an explosion-proof valve. The explosion-proof valve includes: an explosion-proof valve body suitable for being arranged on a housing of a battery; a thinned area surrounding the circumference of the explosion-proof valve body, where the thickness of the thinned area is less than that of the explosion-proof valve body; an explosion rib arranged in the thinned area, where the thickness of the explosion rib is less than the thickness of the thinned area, and the explosion rib is suitable for breaking at a preset pressure value; and a plurality of pits spaced apart from each other in the thinned area and spaced apart from the explosion rib to reduce stress in the thinned area. When the gas pressure value inside the battery reaches the preset pressure value, the explosion rib first breaks to form an exhaust channel, facilitating the discharge of high-pressure gas inside the battery. The pits in the thinned area can destroy the crystal structure on the surface of the thinned area, thereby relieving some stress, solving the problem of high stress in the forming process of the explosion-proof valve, and preventing structural deformation or break.

Anmelder

Firma

SVOLT Energy Technology Co., Ltd.

Land

🇨🇳 China