Elektrische Batteriezelle mit einer Vorrichtung zur Verhinderung des Quellens

Details

Veröffentlichungs-Nr.

EP4726828

Anmeldetag

1. Oktober 2025

Veröffentlichung

15. April 2026

Rechtsraum

EP

IPC

(LING PUI TSANG P et al.)

Abstract

A prismatic-type electric battery cell (1) has a housing (2) having two opposite main walls (2A), an upper wall (2B), a lower wall (2C) and two end walls (2D). The cell incorporates an anti-swelling device, including at least one internal connecting member (4), acting as a tie rod, arranged inside the housing (2) and having two opposite sides connected to the two main walls (2A) of the housing (2), so as to tend to prevent an outward swelling of the main walls (2A). The internal connecting member (4) divides the space inside the housing (2) into two chambers in which two or more wound electrode sheet rolls (JR) are arranged, with the winding axis (5) directed vertically or horizontally. In this way, the swelling of the cell during the operation of a battery pack is significantly reduced, or eliminated altogether, without the use of limiting elements arranged outside the cell and with consequent savings in space, weight and production cost, and with a consequent increase in the energy density of the battery pack.

Anmelder

Firma

C.R.F. Società Consortile per Azioni

Land

🇮🇹 Italien