SOPHIA ANTIPOLIS, France – January 13, 2026 │ KnowMade is pleased to announce the availability of its Q4 2025 solid-state batteries intellectual property monitoring update, delivering a comprehensive and up-to-date analysis of patenting activity worldwide. This quarterly release provides decision-makers with strategic insights into technology trends, competitive dynamics, and emerging innovators shaping the future of solid-state batteries.
Global Solid-State Batteries IP Activity in Q4 2025
Patent activity in solid-state batteries remained particularly strong in Q4 2025, confirming the strategic importance of this technology across the battery value chain. More than 1,660 new patent applications were published during the quarter. The main patent applicants were Samsung, Nissan, Toyota, LGES/LG Chem, and Gotion, with most new filings originating from China, reinforcing its central role in solid-state batteries competitive landscape.
A year-on-year comparison highlights contrasted strategies among leading players. Samsung and Honda significantly increased their patenting activity compared to 2024, while Toyota and Panasonic/Sanyo stabilized their filing volumes. In contrast, LGES/LG Chem showed a slight decrease in new applications during the quarter.
Regarding granted patents, more than 870 patent families recorded a first grant of at least one family member in Q4 2025. The main assignees included Samsung, LGES/LG Chem, Panasonic/Sanyo, Toyota, Nissan, and Renault/Ampère, reflecting a high conversion rate from applications to granted rights. In parallel, more than 60 patents lapsed or expired during the quarter.
Overall, established solid-state batteries IP leaders, such as Toyota, Samsung, LGES/LG Chem, Panasonic/Sanyo, CATL, Gotion, and Nissan, continue to strengthen and consolidate their IP positions.
Newcomers and Notable Innovations in Solid-State Batteries
Q4 2025 saw the arrival of more than 190 newcomers in solid-state batteries patent landscape, the vast majority originating from China, confirming the rapid expansion of the innovation ecosystem. Several non-Chinese IP newcomers, however, stood out for the technological relevance of their inventions:
EBS Square (South Korea)
Founded in 2023, EBS Square is a materials manufacturer developing enabling technologies for all-solid-state batteries. The company published two patent families claiming a solid electrolyte architecture combining an oxide solid electrolyte layer and a sulfide electrolyte layer doped with graphene quantum dots, along with associated manufacturing methods and battery applications.
Innosy-M (South Korea)
Established in 2009, Innosy-M is an equipment manufacturer specializing in manufacturing and automation systems. In Q4 2025, it published two patent families focused on flexible all-solid-state battery manufacturing methods, addressing scalability and process innovation.
Voltify (France)
Founded in 2023 (formerly HILEORES), Voltify emerged from CNRS laboratory research (IEMN and UCCS) and is hosted at IEMN (Université de Lille). The company targets ultra-miniaturized energy storage for medical and implantable devices using 3D silicon-derived architectures. Two patent families, co-filed with major French academic institutions, claim a micro-battery and a structured support for energy storage micro-devices based on all-solid rechargeable concepts.
Holyvolt (Sweden)
Founded in 2022, Holyvolt develops proprietary nanoparticle coating and screen-printing technologies for energy applications. It published one patent family related to a flexible solid energy storage module, addressing performance, cost, and environmental impact.
Nike (USA)
The sportswear company entered the solid-state batteries IP landscape with one patent family covering a flexible battery system for curved surface applications, highlighting cross-industry interest in solid-state batteries.
KnowMade’s Solid-State Batteries IP Monitoring Service
KnowMade’s solid-state batteries monitoring service provides continuous, in-depth tracking of patent applications, granted patents, and portfolio evolutions worldwide. By combining advanced patent analytics with expert interpretation, KnowMade enables companies to:
- Anticipate technology and market trends in solid-state batteries
- Benchmark competitors and identify emerging players
- Support R&D, IP, and business strategy decisions with reliable data
Covering the full solid-state batteries value chain—from materials and electrolytes to cell design, manufacturing processes, and applications—KnowMade’s monitoring service is a strategic tool for organizations seeking to secure and strengthen their position in this rapidly evolving field.
For more information about KnowMade’s solid-state batteries IP monitoring solutions, please contact our team or visit our website.
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About the author
Fleur Thissandier, PhD, works as Senior patent and technology analyst at KnowMade in the field of Materials Chemistry and Energy storage. She holds a PhD in Materials Chemistry and Electrochemistry from CEA/INAC, (Grenoble, France). She also holds a Chemistry Engineering Degree from the Superior National School of Chemistry (ENSCM Montpellier, France). Fleur previously worked in battery industry as R&D Engineer.
About KnowMade
KnowMade is a technology intelligence and IP strategy firm specializing in the analysis of patents and scientific publications. We assist innovative companies, investors, and research organizations in understanding the competitive landscape, anticipating technological trends, identifying opportunities and risks, improving their R&D, and shaping effective IP strategies.
KnowMade’s analysts combine their strong technology expertise and in-depth knowledge of patents with powerful analytics tools and methodologies to transform patent and scientific data into actionable insights to support decision-making in R&D, innovation, investment, and intellectual property.
KnowMade has solid expertise in Semiconductors and Packaging, Power Electronics, Batteries and Energy Management, RF and Wireless Communications, Photonics, MEMS, Sensing and Imaging, Medical Devices, Biotechnology, Pharmaceuticals, and Agri-Food.