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Worldwide Patent Activity by Main Battery Technologies 2025 2025 patenting activity in main publication countries is driven by Li-ion, Na-ion and redox-flow battery technologies.
Li-ion remains the primary focus of patent applications in 2025 for every major publication region.
Na-ion and redox-flow technologies consistently appear as the leading secondary innovations.
Patenting on other battery types remains limited compared to these dominant categories. 2025 MAIN PATENT APPLICANTS BY MAIN BATTERY TECHNOLOGIES
2025 PATENT APPLICATIONS BY COUNTRY AND MAIN BATTERY TECHNOLOGIES
A patent family is a set of patent applications filed in multiple countries to protect a single invention by a common inventor(s). A first patent application is filed in one country – the priority country – and is then extended to other countries. Source: Patent search was done in December 2025 by KnowMade, using keywords and IPC/CPCs (H01M, H02J-007) in Orbit (Questel) which provides 100+ million patent documents from 100 patent offices (USA, Japan, Europe, China, Korea, Taiwan, Hong Kong, Singapore, etc.).
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