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Battery Module with Gas Discharge and Flame Prevention

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Published March 31st, 2026
Detected March 31st, 2026
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Summary

USPTO granted patent US12592448B2 to LG Energy Solution, Ltd. on March 31, 2026, for a battery module featuring gas discharge and flame prevention mechanisms. The patent covers a battery cell stack within a case, exhaust path member, and cover with discharge holes designed to safely vent gas while preventing flame leakage. The patent names three inventors: Sang-Woo Ryu, Jong-Hyun Jo, and Yong-Seok Choi.

What changed

USPTO granted Patent No. US12592448B2 to LG Energy Solution, Ltd. for a battery module design that safely manages gas discharge while preventing flame leakage. The invention includes a battery cell stack housed in a case with a first discharge hole, an exhaust path member communicating with the discharge hole to provide a safe gas discharge path, and a cover with a second discharge hole for final gas release. The patent was filed November 16, 2021, under Application No. 17922811, with 15 claims covering the integrated safety venting system.

This is a patent grant notice, not a regulatory requirement. No compliance action is required from companies. However, manufacturers of battery modules and electric vehicles should be aware that LG Energy Solution now holds intellectual property rights covering this gas discharge and flame prevention architecture, which may be relevant to product development and licensing discussions.

Source document (simplified)

← USPTO Patent Grants

Battery module, and battery pack and vehicle comprising same

Grant US12592448B2 Kind: B2 Mar 31, 2026

Assignee

LG ENERGY SOLUTION, LTD.

Inventors

Sang-Woo Ryu, Jong-Hyun Jo, Yong-Seok Choi

Abstract

A battery module includes a battery cell stack in which a plurality of battery cells are stacked; a case configured to accommodate the battery cell stack and having a first discharge hole formed to discharge gas; an exhaust path member having a hole formed to communicate with the first discharge hole and mounted to the case to provide a discharge path of the gas so as to discharge the gas and prevent flame from leaking; and a cover coupled to the case to cover the exhaust path member and having a second discharge hole through which the gas moving through the exhaust path member is discharged.

CPC Classifications

H01M 50/358 H01M 50/383 H01M 2220/20

Filing Date

2021-11-16

Application No.

17922811

Claims

15

View original document →

Source

Analysis generated by AI. Source diff and links are from the original.

Classification

Agency
USPTO
Published
March 31st, 2026
Instrument
Notice
Legal weight
Non-binding
Stage
Final
Change scope
Minor
Document ID
US12592448B2

Who this affects

Applies to
Technology companies Manufacturers
Industry sector
3361 Automotive Manufacturing 3341 Computer & Electronics Manufacturing 3254 Pharmaceutical Manufacturing
Activity scope
Patent Protection
Geographic scope
United States US

Taxonomy

Primary area
Intellectual Property
Operational domain
Legal
Topics
Energy Manufacturing

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