Gas Venting Device and Battery Pack Comprising Same
Summary
The European Patent Office published patent EP4138196A1 by LG Energy Solution, Ltd. on March 25, 2026, covering a gas venting device and battery pack designed to safely release gases during thermal events. The patent application includes detailed technical drawings and claims for the venting mechanism applicable to lithium-ion battery systems.
What changed
LG Energy Solution, Ltd. obtained European Patent EP4138196A1 for a gas venting device integrated into battery packs, designed to safely manage pressure buildup during thermal runaway events. The patent (H01M 50/342, H01M 50/30 classifications) specifies a venting mechanism with designated states across 31 European countries including Germany, France, the UK, Italy, and Spain.
Patent publications are informational filings that do not impose compliance requirements on manufacturers. Companies developing battery products should review the patent claims to assess potential licensing needs or design-around considerations, particularly for EV battery pack and energy storage system applications.
Source document (simplified)
GAS VENTING DEVICE AND BATTERY PACK COMPRISING SAME
Publication EP4138196A1 Kind: A1 Mar 25, 2026
Applicants
LG Energy Solution, Ltd.
Inventors
KIM, Doo Seung, CHOO, Yeon Chul
IPC Classifications
H01M 50/342 20210101AFI20240826BHEP H01M 50/30 20210101ALI20240826BHEP H01M 50/204 20210101ALI20240826BHEP
Designated States
AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LI, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR
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