Battery Module Manufacturing Method Patent
Summary
The European Patent Office published patent EP4020697A1 for LG Energy Solution's battery module manufacturing method. The patent covers laser welding and assembly techniques for battery modules, with designated states covering 31 European countries. This patent grants LG Energy Solution exclusive rights to the claimed manufacturing method in covered jurisdictions.
What changed
The European Patent Office published patent EP4020697A1 on March 25, 2026, granting LG Energy Solution exclusive rights to a battery module manufacturing method. The patent covers laser welding techniques and assembly processes, classified under multiple IPC codes including H01M (batteries) and B23K (welding). The designated states include most European countries from Albania to Turkey.
Battery module manufacturers operating in EU jurisdictions should review this patent to ensure their manufacturing processes do not infringe on LG Energy Solution's protected methods. Companies developing similar welding or assembly techniques for battery modules may need to consider licensing arrangements or design alternatives to avoid potential intellectual property disputes.
Source document (simplified)
MANUFACTURING METHOD OF A BATTERY MODULE
Publication EP4020697A1 Kind: A1 Mar 25, 2026
Applicants
LG ENERGY SOLUTION, LTD.
Inventors
LEE, Changje, HONG, Dae Ji, LEE, Kangil, BAE, Jaehyun
IPC Classifications
H01M 50/502 20210101AFI20240516BHEP H01R 13/03 20060101ALI20240516BHEP B23K 26/21 20140101ALI20240516BHEP B23K 26/60 20140101ALI20240516BHEP B23K 26/082 20140101ALI20240516BHEP B23K 26/22 20060101ALI20240516BHEP B23K 26/244 20140101ALI20240516BHEP B23K 26/323 20140101ALI20240516BHEP B23K 101/36 20060101ALI20240516BHEP B23K 101/38 20060101ALI20240516BHEP B23K 103/10 20060101ALI20240516BHEP B23K 103/12 20060101ALI20240516BHEP B23K 103/18 20060101ALI20240516BHEP H01M 50/209 20210101ALI20240516BHEP H01M 50/516 20210101ALI20240516BHEP
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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