EPO Patent Publication: Hydrogen Supply System EP4600891A2

The European Patent Office has published patent application EP4600891A2 concerning a hydrogen supply system and method for managing hydrogen supply and demand, filed by ENEOS Corporation. The publication date is March 18, 2026.

Patent EP4661095A2: Roll Map Apparatus and Battery Manufacturing Method

The European Patent Office has published patent application EP4661095A2 concerning a roll map apparatus and a battery manufacturing method. The patent application was filed by LG Energy Solution, Ltd. and lists multiple inventors. The publication date is March 18, 2026.

EPO Patent Publication: Positive Electrode Active Material for Batteries

The European Patent Office has published patent application EP4672369A1 concerning a positive electrode active material, its preparation method, and a battery. The application was filed by Xiamen Hithium Energy Storage Technology Co., Ltd. and lists WU, Han as the inventor.

EPO Patent Publication EP4636919A1: Energy Storage Device

The European Patent Office (EPO) has published patent application EP4636919A1 concerning an energy storage device. The publication lists Shenzhen Hello Tech Energy Co., Ltd. as the applicant and includes several inventors. The patent application was published on March 18, 2026.

EPO Patent EP4556835A2 for Graphite Electrode Identification and Monitoring

The European Patent Office has published patent application EP4556835A2, filed by GrafTech International Holdings Inc., concerning systems and methods for identifying and monitoring graphite electrodes. This patent is related to the manufacturing processes within the energy sector, specifically for electric arc furnaces.

Samsung SDI Battery Pack Patent EP4708498A2

The European Patent Office has published patent application EP4708498A2 by Samsung SDI Co., Ltd. for a battery pack. The publication date is March 18, 2026, and it includes various IPC classifications related to battery technology.

Electrolyte and Lithium-Ion Battery Patent Granted to Hithium Tech HK Limited

The European Patent Office has published patent application EP4597605A2 for an electrolyte, lithium-ion battery, and electricity-consumption device, filed by Hithium Tech HK Limited. This patent relates to advancements in battery technology and was published on March 18, 2026.

EPO Patent EP4557453A2: Method for Decomposition of Electrochemical Energy Stores

The European Patent Office has published patent application EP4557453A2 concerning a method for decomposing electrochemical energy stores, such as batteries. The patent was filed by ACCUREC-Recycling Gesellschaft mbH and lists Reiner Sojka, Albrecht Melber as inventors. The publication date is March 18, 2026.

EPO Patent Publication EP4632870A1: Heating Control for Battery Packs

The European Patent Office has published patent application EP4632870A1 concerning a heating control system for parallel-connected battery packs, filed by Solax Power Network Technology (Zhejiang) Co., Ltd. The patent details specific technical solutions for managing battery temperature.

EPO Patent Publication: Explosion Prevention Valve for Batteries

The European Patent Office has published patent application EP4607070A1 concerning an explosion prevention valve for battery cores and packs. The patent, assigned to BYD Company Limited, was published on March 18, 2026, and covers various European states.