Device for breaking the electrical connection to a battery cell in the event of outgassing

US12394873B2 · kind B2 · utility

Inventors

• Ignaz Weglehner-Pilgerstorfer · Summerau, AT
• Philipp Kreisel · Manzenreith, AT
• Helmut Kastler · Manzenreith, AT
• Lukas Haider · Langschlag, AT
• Manuel Riegler · Manzenreith, AT
• Christian Leitner · Summerau, AT
• Peter Dobusch · Grünbach, AT
• Gerhard Waldschütz · Manzenreith, AT

Key dates

• Filing date: Dec 9, 2020
• Grant date: Aug 19, 2025
• Expiry date: May 29, 2042

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E60/10
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A device for breaking the electrical connection to a battery cell (1) in the event of outgassing has the cell pole (3) on the outgassing valve side connected to an electrical contact point (5) at a connection point (4) via a connecting lead (2) which forms a fuse. The device, requiring few components and having a compact design, enables a reliable electrical and thermal protection of neighboring cells of an outgassing battery cell against overloading and prevents the spread of a thermal runaway. The device provides a spacer (6) between the connection point (4) and the contact point (5) that electrically isolates the connection point (4) from the contact point (5) in the event of outgassing and that retains the cell pole (3).