US12573669USUSPTO Grant XML

Safety device for battery packs having pouch cells by mechanical interrupters

A rechargeable battery pack having at least one pouch cell, wherein the rechargeable battery pack has at least one interrupter, which is designed to at least temporarily interrupt a current draw from the pouch cell and/or from the rechargeable battery pack, wherein the interrupter is tripped by an expansion of the at least one pouch cell.

Patent

Brief

Patent brief

Problem

How can battery fires and thermal runaway in EV packs be prevented?

Novelty

The front-page text suggests a specialized implementation detail worth closer review.

Uses

Patent review

Assignee

Hilti Aktiengesellschaft

Published

Mar 10, 2026

Inventors

Matthias Lepiorz, Robert Stanger, Moses Ender, Bernd Ziegler, Klaus Hauser, Nora Martiny, Kathrin Sax

Domain

Mobility / storage

Plain-English summary

Problem

How can battery fires and thermal runaway in EV packs be prevented?

Solution

rechargeable battery pack having at least one pouch cell, wherein the rechargeable battery pack has at least one interrupter, which is designed to at least temporarily interrupt a current draw from the pouch cell and/or from the rechargeable battery pack, wherein the interrupter is tripped by an expansion of the at least one pouch cell.

Key novelty

The front-page text suggests a specialized implementation detail worth closer review.

Applications

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Relevant search intents

b8a770028699

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