Batteriesystem für ein Elektrofahrzeug und Verfahren zur Bestimmung eines Thermischen Durchgehens

Details

Veröffentlichungs-Nr.

EP4507064

Aktenzeichen

EP23190029

Anmeldetag

7. August 2023

Veröffentlichung

8. Oktober 2025

Erteilung

8. Oktober 2025

Rechtsraum

EP

IPC

H01M10/48G01L11/02

Abstract

The present disclosure refers to a battery system for an electric vehicle, an electric vehicle including the same, and a method for determination of a thermal runaway in the battery system. The battery system includes a battery pack including a plurality of battery cells accommodated within a housing. The battery system further includes a thermal runaway detection system including a sensor unit and a control unit. The sensor unit and control unit are configured for transmitting and receiving data from the sensor unit to the control unit. The sensor unit is positioned within the battery pack of the battery system and includes a first cover element and a second cover element arranged on and connected to the first cover element in such a way that a space is formed between the first cover element and second cover element; a light emitter and a light sensor arranged within the space such that light emitted from the light emitter is receivable at the light sensor via a light path that extends across the space; and the first cover element is designed to bend towards the second cover element and into the light path in the event of a pressure increase in the battery pack. The control unit is configured to detect a possible thermal runaway based on a change in data transmitted by the sensor unit.

Anmelder

Firma

Samsung SDI Co., Ltd.

Land

🇰🇷 Südkorea

Fachgebiete