SOPHIA ANTIPOLIS, France – April 28, 2025 │Silicon anode technology is becoming a major focus for improving Li-ion batteries. As research and development speed up worldwide, KnowMade’s Silicon Anode Li-ion Batteries Patent Monitoring Service helps you keep track of the latest innovations and key industry players.
Q1 2025 Patent Activity Highlights Global Efforts to Industrialize Silicon Anodes
The Q1 2025 data highlights strong and diversified innovation activity around silicon anode Li-ion batteries technology, with over 1,150 new patent families (inventions) published. More than 430 new inventions relate to anode materials, confirming ongoing efforts to overcome silicon’s intrinsic limitations such as volume expansion and cycling instability. The main patent applicants that stand out in this first quarter of 2025 for this segment are Shanshan, Samsung, and LG Energy Solution (LGES). Notably, substantial innovations are also observed in battery cells and other key components like electrolytes and binders (Figure 1), underlining a system-level approach to integration. This widespread R&D activity reflects the strategic importance of silicon anodes in next-generation energy storage solutions, as stakeholders aim to boost energy density while ensuring performance and manufacturability. Samsung and LG Energy Solution show a strong presence across multiple value chain segments, reflecting integrated innovation strategies. Hyundai-Kia, primarily known as a global vehicle manufacturer, appears, for example, among the patent holders in the anode segment. This demonstrates the growing strategic importance of upstream battery technologies for vehicle manufacturers.
Figure 1: Distribution of new patent families related to Silicon Anode Li-ion Batteries published in Q1 2025, and main patent applicants (non-exhaustive list). Note that a patent family can belong to multiple segments.
New Patent Filings Target Key Challenges in Silicon Anode Materials
Identifying recent patent filings from key players underscores the growing innovation efforts in silicon-based material development for silicon anode Li-ion battery anodes. For instance, recent patent publications from Shanshan and LG Energy Solution relate to advanced silicon-carbon composite materials designed to overcome critical challenges such as volume expansion and structural degradation (Figure 2). Shanshan has developed a core-shell structure combining porous silicon and carbon layers to enhance structural stability and electrochemical performances. In parallel, LG Energy Solution is working on a graphite-coated silicon-based composite with integrated conductive materials to mitigate excessive solid electrolyte interphase (SEI) formation and improve cycle life. These technical developments reflect the race to make silicon anodes viable for high-performance battery applications.
Figure 2: Examples of notable new patent applications published in Q1 2025 related to silicon anode materials.
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About the author
Arnaud Capgras works for KnowMade as a Patent Analyst in the field of Materials Chemistry and Energy storage. He holds a Chemistry-Process Engineering Degree from the Chemistry and Chemical Engineering School of Lyon (CPE Lyon, France). He also holds the International Industrial Property Studies Diploma (Patents) from the CEIPI (Strasbourg, France).
About KnowMade
KnowMade is a technology intelligence and IP strategy consulting company specialized in analyzing patents and scientific publications. The company helps innovative companies, investors, and R&D organizations to understand competitive landscape, follow technological evolutions, reduce uncertainties, and identify opportunities and risks in terms of technology and intellectual property.
KnowMade’s analysts combine their strong technology expertise and in-depth knowledge of patents with powerful analytics tools and methodologies to turn patent information and scientific literature into actionable insights, providing high added value reports for decision makers working in R&D, innovation strategy, intellectual property, and marketing. Our experts provide prior art search, patent landscape analysis, freedom-to-operate analysis, IP due diligence, and monitoring services.
KnowMade has a solid expertise in Compound Semiconductors, Power Electronics, Batteries, RF Technologies & Wireless Communications, Solid-State Lighting & Display, Photonics, Memories, MEMS & Sensors, Semiconductor Packaging, Medical Devices, Medical Imaging, Microfluidics, Biotechnology, Pharmaceutics, and Agri-Food.