Solid-State Battery Patent Landscape 2026 Report | PatSnap
Solid-State Battery Electrolytes & Interface Engineering
One of the most contested patent battlegrounds in energy storage — 32,786 patent families across sulfide, oxide, polymer and halide electrolytes, plus the interface engineering that unifies them. Get the full 15-page analysis as a PDF.
A complete patent & technology landscape
The report maps the corpus, trends, jurisdictions, electrolyte families, interface strategies, key players, emerging directions and the materials value chain — with charts, tables and representative patents throughout.
Across the 2020–2026 window the global corpus reaches 32,786 patent families at the intersection of electrolyte chemistry and interface engineering, with annual filings growing from ~3,936 in 2020 to a peak near 6,840 in 2024 — a 74% rise in five years.
Japan and South Korea dominate the rankings, but China-origin filings have surged since 2022. The four electrolyte families each occupy distinct trajectories, while electrode–electrolyte interface engineering (6,448 patents) has emerged as the cross-cutting challenge across all chemistries.
Halide electrolytes are the fastest-emerging sub-field, growing 396% from 2020 to 2024, while sulfide remains the largest single cluster at 8,676 patents.
- 01Patent corpus overview32,786 families across six clusters, with CAGR by family
- 02Filing trends 2020–2026Year-by-year totals for the corpus and each cluster
- 03Jurisdiction landscapeShare and key filers across Japan, Korea, China, US, Europe
- 04Four electrolyte familiesSulfide, oxide, polymer, halide — chemistry, approaches, assignees
- 05Interface engineering6,448 patents and seven interface strategies
- 06Seven assignee profilesToyota, LG, Panasonic, Samsung SDI, CATL, QuantumScape, GM
- 07Eight emerging directionsOxyhalide, anode-free, in-situ polymerization, AI/ML and more
- 08Maturity & positioningTRL, advantages, challenges and timelines by type
- 09Ten representative patentsPatent-level evidence for each major approach
- 10Materials value chainSix supply-chain segments, players and bottlenecks
- 11Strategic outlookFive takeaways on moats, white space and convergence
Two of the report’s charts
The full PDF contains charts and tables across all eleven sections, including per-cluster trends, jurisdiction shares, assignee rankings and a maturity comparison.
Patent count by electrolyte cluster
2020–2026, by cluster
Overall corpus filings by year
Patent families filed per year, 2020–2024
Get the full 15-page landscape report
Charts, tables, assignee profiles, representative patents and strategic outlook — the complete analysis in a shareable PDF.
Data and insights in this report are based on a limited patent and literature dataset and are for reference only. Figures may not represent the complete technology landscape. Prepared by the PatSnap Insight Team, 2026.
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