Deckelanordnung und Lithium-Ionen-Batterie

Details

Veröffentlichungs-Nr.

EP4819318

Anmeldetag

30. März 2026

Veröffentlichung

7. Oktober 2026

Rechtsraum

EP

Abstract

A lid assembly (10) and a lithium-ion battery is provided. The lid assembly (10) includes a lid base (1), a lower insulating member (4) stacked with the lid base (1), and a terminal (5) and an explosion protection valve (6) disposed on the lid base (1). The terminal (5) penetrates the lower insulating member (4) and the lid base (1). A first protruding portion (11) corresponding to a position of the explosion protection valve (6) and a second protruding portion (7) are provided on the lower insulating member (4). The second protruding portion (7) includes a planar region (7-1) and a curved region (7-2). A minimum dimension of an orthogonal projection of the curved region (7-2) on the lid base (1) in a length direction is L1. A minimum distance between the planar region (7-1) and the terminal base plate (5-1) on the terminal (5) is L0, which satisfies 0.5≤L1/L0≤0.9.

Anmelder

Firma

AESC Japan Ltd.

Land

🇯🇵 Japan