Patent · US Active

Pressure relief element, pressure relief device and battery

US11239528B2 · kind B2 · utility

0Cited by

3References

20Claims

0Family size

Assignee

Clarios Advanced Solutions GmbH · DE

Inventors

Ralf Joswig · Wolfsburg, DE
Martin Wiegmann · Kellinghusen, DE
Helge Brenner · Hannover, DE
Markus Hoh · Garbsen, DE
Kevin Chladek · Hannover, DE

Key dates

Filing date	Jul 21, 2020
Grant date	Feb 1, 2022
Priority date	—
Expiry date	Jul 21, 2040

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/10
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The present invention relates to a pressure relief element (11) to be used as an overpressure safety means in devices where a gaseous medium must be rapidly released in case of overpressure, wherein the pressure relief element (11) has at least one notch (9) which is designed as a predetermined breaking point where the pressure relief element (11) breaks at a certain level of overpressure, thereby irreversibly opening an exhaust path for the gaseous medium. The present invention also relates to a pressure relief device of an electrochemical battery, comprising such a pressure relief element and a battery comprising such a pressure relief device.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.