Li-Ion Nano-Electrode Patent Snapshot 2026
Li-Ion Nano-Electrode patenting is a small, moderately concentrated field anchored by a handful of specialist firms and academic institutions, with Honeycomb Battery Co holding the largest share. Annual volume peaked in 2019 and has since eased materially, placing the field in a decline phase, though recent publication lag may partially obscure the true current level of activity.
Honeycomb Battery Co leads a fragmented but top-heavy field
Honeycomb Battery Co ranks first among all filers, followed by Sila Nanotechnologies and Huawei Technologies, each tied at second. The top five filers’ share of the ranked applicants visible in this query’ combined total stands at 30%, indicating meaningful concentration at the very top despite a long tail of small and individual applicants.
A visible tier gap separates the top three from the remainder of the ranking: Honeycomb Battery Co holds 9 patent records, while every applicant outside the top five holds 3 or fewer. This tiered structure suggests a small group of organizations has made deliberate and sustained investment, while most participants are opportunistic or exploratory.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | Honeycomb Battery Co | 9 | |
| 2 | Sila Nanotechnologies Inc | 5 | |
| 3 | Huawei Technologies Co Ltd | 5 | |
| 4 | Institute of Physics, Chinese Academy of Sciences | 3 | |
| 5 | BTR New Material Group Co Ltd | 3 | |
| 6 | Global Graphene Group Inc | 2 | |
| 7 | Jing-Jin-Ji Steel Alliance (Qian’an) Collaborative Innovation Research Institute Co Ltd | 2 | |
| 8 | Kim Jong Eun | 2 | |
| 9 | Dr Chandra Sekhar Beera | 2 | |
| 10 | CNP Solutions Co Ltd | 2 |
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 11 | Ningde Amperex Technology Ltd (CATL) | 2 | |
| 12 | Changsha University of Science and Technology | 2 | |
| 13 | Jiangsu Demei New Materials Technology Co Ltd | 2 | |
| 14 | Wayne State University | 2 | |
| 15 | Research Triangle Institute | 2 | |
| 16 | Cornell University | 2 | |
| 17 | Kiran Shaik Rafi | 1 | |
| 18 | Dr D Mahalakshmi | 1 | |
| 19 | Dr T Ravindar | 1 | |
| 20 | Amrita Vishwa Vidyapeetham | 1 |
The leaders’ positions imply that electrode architecture and active-material synthesis are the contested zones; entrants without differentiated nanotechnology process know-how face an established body of prior art concentrated in H01M and B82Y classes.
The most recent 18–24 months of filing data are subject to publication lag and should be treated as under-counted; apparent low activity in 2024–2025 does not necessarily reflect a true further decline in R&D investment.
A 2019 filing peak followed by easing volume, dominated by battery-cell IPC classes
Two lenses reveal the field’s dynamics: the annual filing trend shows a clear peak and subsequent moderation, while the technology composition confirms near-total concentration in electrochemical and nanotechnology patent classes.
Annual filing trend
Filings rose to a peak of 9 records in 2019, then fell and have remained subdued. Given standard 18–24-month publication lag, 2024 and 2025 totals are likely under-represented and should not be read as confirmation of continued contraction.
↗ Hover for values · click a bar to ask EurekaTechnology composition
H01M (Batteries, cells & fuel cells) is visible in the IPC mix, reflecting the applied electrochemistry core of the field. B82Y (Nanotechnology applications) is the second-largest class, confirming that nano-scale engineering is a defining characteristic. All other classes — including C01B, C01G, H01G, and H01B — appear at low levels, pointing to adjacencies that remain sparsely covered.
↗ Hover for values · click a bar to ask EurekaHighly cited patent families surfaced by the query
Citation-heavy patent families returned by the query. Use this section as citation context, not as a curated list of the most topic-specific patents.
VORLÄUFER UND HERSTELLUNGSVERFAHREN DAFÜR, POSITIV…
The present disclosure provides a precursor of a positive electrode active material. A particle of the precursor includes a core and a shell covering the core. Each of the core and the shell is made of nickel cobalt manganese oxide or nickel cobalt manganese hydroxide. The core is doped with a fluxing agent, and the fluxing agent is selected from one or… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Process for graphene foam-protected anode active m… | 38 |
| 2 | 氧化石墨烯量子点与石墨烯复合电极材料及其制备方法 | 28 |
| 3 | Composite anode for lithium ion batteries | 25 |
| 4 | Process for producing graphene/silicon nanowire hy… | 21 |
| 5 | 一种锂电池负极材料-氮掺杂SnS/C复合纳米材料的制备方法 | 16 |
| 6 | 一种三维导电网络支撑的多孔硅纳米材料及其制备方法和用途 | 14 |
| 7 | Nanostructured silicon carbonaceous composite mate… | 11 |
| 8 | 一种氮化碳/碳纳米复合材料及其制备方法和应用 | 11 |
Ranked by total forward citations. Citation counts favour older and broadly cited patent families, and broad or adjacent patents may appear when they match the search scope. Treat this section as citation context, not as a curated list of the most topic-specific patents. Some patent titles may be shown in their original, non-English language where an accurate translation could not be guaranteed.
Assignee snapshot from the current evidence set
The applicants below are visible in this query result. Because the evidence set is relatively small, read this section as a directional snapshot rather than a full competitive ranking.
Honeycomb Battery Co
Honeycomb Battery Co holds 9 patent records, the largest position in the field. Its technology emphasis is entirely within H01M — battery cells and electrode materials — reflecting a deep, application-focused portfolio rather than a broad nanotechnology platform. No momentum data was returned for this applicant in the evidence set, so trajectory direction cannot be confirmed from available data.
9 patent recordsSila Nanotechnologies Inc
Sila Nanotechnologies holds 5 patent records and is flagged as a new entrant with rising recent-period filings. Its focus spans H01M 10 (full battery systems) and H01M 4 (electrode materials), with an additional H01M 50 record covering ancillary battery components. The new-entrant momentum signal, coming from a commercially active anode-materials company, is a meaningful indicator to watch even at a small absolute count.
5 patent recordsFrequently asked questions
The evidence covers 38 patent families in scope. The field is therefore small in absolute terms, which lowers the barrier for a new corporate entrant to establish a meaningful portfolio position relatively quickly.
Honeycomb Battery Co is the top filer with 9 patent records, followed by Sila Nanotechnologies Inc and Huawei Technologies Co Ltd, each with 5 patent records. No other applicant holds more than 3 records in the ranked list.
The evidence classifies the field as Decline. Annual filing volume peaked in 2019 at 9 records and has eased since. The recent-window growth rate is -56%. The most recent 18–24 months of data are subject to publication lag, so the true current level of activity may be somewhat higher than raw counts suggest.
The United States leads with 23 patent records, followed by Europe (EPO) with 11, China with 10, WIPO (PCT) with 6, and India with 4. Coverage outside the U.S. is selective, suggesting that most applicants have not pursued broad multinational protection.
H01M (Batteries, cells and fuel cells) is the visible IPC class, followed by B82Y (Nanotechnology applications). All other classes — including C01B, C01G, H01G, H01B, and H01L — appear at 6 records or fewer, confirming that the field is tightly anchored to electrochemical battery applications.
Three co-applicant pairs are recorded: Sila Nanotechnologies with Battelle Memorial Institute, Huawei Technologies with BTR New Material Group, and Huawei Technologies with an individual co-inventor. The low total count of collaborative filings relative to the corpus size indicates that most organizations are pursuing independent IP strategies in this space.
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Disclaimer. This page is generated from Patsnap Eureka data drawn from a limited snapshot of global patent and scientific-literature records, and is provided for general information and reference only.
Patent data carries inherent limitations: recent filings (typically the most recent 18–24 months) are under-counted due to standard publication lag; counts may be reported at either a patent-family or a patent-record basis and are not always directly comparable; classification, applicant-name, and citation data may contain errors, duplicates, or omissions; and the underlying search query defines and constrains the scope shown. As a result, the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
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