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Run your analysis now →https://www.patsnap.com/resources/blog/rd-blog/hybrid-supercapacitor-advanced-materials-patent-landscape/ · Patsnap · data cut-off 2026-07-31 · downloaded from the live page
Patent Landscape · SupercapacitorsHybrid Supercapacitor Advanced Materials Patent Landscape 2026
- Filing has already peaked. 2020 recorded 44 filings against 16 in 2017; by the 2022 midpoint the count had fallen back to 22, and the trend since is flat to declining rather than growing.
- China dominates the filing venue. 106 of the tracked records were filed there, more than the United States (61) and India (53) combined against the next tier.
- The battery-type electrode overlap is real but secondary. H01M appears in 76 of the 305 families, confirming most hybrid supercapacitor material claims still sit primarily in capacitor classification, not battery classification.
305
Published Records
63%
Top-5 Share of Top-100 Filers
+56%
3-Yr Growth (lag-adjusted)
CN
Leading Jurisdiction
Published byPatsnap Research··7 min readSourced from Patsnap Eureka
Overview
What this landscape covers
This dataset tracks 305 patent families published between 2015 and the 2026 cut-off that combine hybrid, asymmetric or lithium-ion capacitor terminology with battery-type electrode, pseudocapacitive or activated-carbon material language, filtered to the core capacitor IPC classes H01G11/46, H01G11/50 and H01G11/24. The scope is deliberately narrow: it isolates material and electrode claims inside capacitor-classified filings rather than the broader supercapacitor or battery literature. Publication lags filing by roughly 18 months, so the 2025–2026 counts in any trend view will always look thinner than they eventually turn out to be.
Family-level counting is used throughout rather than raw document counts, which keeps continuation filings and multi-jurisdiction duplicates from inflating any single assignee's apparent footprint.
Filing activity and technology composition, 2017–2026
Source: Patsnap Eureka. Assignee ranking and totals. Derived from a Patsnap search on Hybrid Supercapacitor Advanced Materials covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
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The data
Filing trend and technology composition
Two views of the same 305 families: how filing volume has moved year over year, and which IPC subclasses the claims actually sit in alongside the core capacitor classification.
Filing trend, 2017–2026
Filings rose from 16 in 2017 to a peak of 44 in 2020, then eased to 22 by 2022 and to 12 in the most recent (partial) year. Read the tail end cautiously — the publication lag means 2025–2026 will fill in further as pending applications surface.
IPC subclass composition
Every record carries H01G by construction of the search. The next-largest overlap is H01M at 76 families, followed by nanotechnology applications (B82Y, 25) and non-metallic/inorganic compounds (C01B, 22) — evidence that electrode chemistry work is drawing on nanostructuring and inorganic materials science more than on polymer chemistry, where C08G registers only 4.
Source: Patsnap Eureka. Filing trend and technology composition. Derived from a Patsnap search on Hybrid Supercapacitor Advanced Materials covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.
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Most-cited records in the corpus
Representative filing
Lithium-ion battery/capacitor electrode material with hydrophilic surface treatment
DAI-ICHI KOGYO SEIYAKU CO., LTD.
Provided is a lithium-ion battery or lithium-ion capacitor electrode material that can compensate for the drawbacks of a hydrophobic active material, that can impart hydrophilicity to the hydrophobic active material, and that can exhibit excellent dispersibility without deteriorating electrode characteristics. Specifically provided is an electrode material for a lithium-ion battery or a lithium-ion capacitor, the electrode material comprising a composite powder in which a B component is supported or coated on a surface of an A component, the A component comprising a material capable of electrochemically occluding and releasing lithium ions, the B component being sulfur-modified cellulose, anAbstract excerpted as filed; full claim scope should be checked in the granted family before relying on it.
Highest-cited families
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20100195269A1 | Hybrid supercapacitor using surface-oxidized transition metal nitride aerogel | 57 |
| 2 | JP2009049236A | Carbon electrode material, carbon electrode material mixture, method of manufacturing carbon electrode materi… | 32 |
| 3 | US20140293507A1 | Composite electrode for lithium ion capacitor | 28 |
| 4 | CN111446087A | 一种纳米花状NiCoP超级电容器电极材料及其制备方法和应用 | 27 |
| 5 | US20080055819A1 | Lithium-ion capacitor | 25 |
| 6 | US10049824B2 | Activated carbon for electrode of power storage device and method for manufacturing activated carbon for elec… | 23 |
| 7 | CN103824705A | 一种水系非对称超级电容器的制备方法 | 22 |
| 8 | US20190252131A1 | Hybrid supercapacitor containing a niobium composite metal oxide as an anode active material | 20 |
| 9 | CN106847520A | 一种锂离子电容器正极及其应用 | 20 |
| 10 | US20160126023A1 | High performance lithium-ion capacitor laminate cells | 20 |
Citation counts inside a searched corpus favour older filings that have had more time to accumulate citations — treat this as a signal of influence on the field's prior art, not a ranking of current commercial importance.
Patent titles are shown in the language they were filed in, not translated, so that each record stays verifiable against the original filing — a translated title will not match in Eureka or in any national register. Each row carries its publication number; clicking a row searches Eureka by that number.
Source: Patsnap Eureka. Citation counts and representative records. Derived from a Patsnap search on Hybrid Supercapacitor Advanced Materials covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
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What the numbers say about where this field is headed
Four read-outs from the filing trend, venue split and IPC overlap that matter more for a filing decision than the raw counts alone.
Filing momentum
44 → 22 → 12
2020 peak → 2022 → latest year
Growth has already crested
The peak year (2020, 44 filings) is five years behind the current cut-off, and the midpoint year (2022, 22) already shows the count roughly halved. That is a maturing filing curve, not an emerging one — new entrants are competing for narrower open space than they would have in 2019.
Trend data, 2017–2026
Venue concentration
106 CN filings
vs. 61 US, 53 IN
China is the primary filing venue by a wide margin
China accounts for more filings than the United States and India each individually, with WIPO/PCT and EPO filings well behind at 25 and 27. Anyone benchmarking freedom-to-operate needs a China-first read before assuming a US or European clearance is sufficient.
Receiving office split
Cross-class overlap
76 H01M records
of 305 total families
Battery-electrode overlap is significant but not dominant
Just under a quarter of families also carry a battery IPC code, consistent with lithium-ion capacitor designs that borrow battery-type electrode chemistry. The remaining three-quarters sit more purely in capacitor classification, which is where most of the pseudocapacitive and activated-carbon material claims concentrate.
IPC composition
Collaboration density
3 co-assignee pairs
strongest pair: 5 shared families
Joint filing is rare and concentrated
Only three co-assignee pairs appear across the entire corpus, and the strongest — a Japanese materials maker with a national research institute — accounts for 5 shared families. Most applicants in this space are filing solo rather than through joint ventures or research consortia.
Co-assignee pairs
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Looking for what nobody has claimed yet?
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to hybrid supercapacitor advanced materials, with the prior art for and against each one.
Notable collaboration
| Assignee | Co-assignee | Shared families |
|---|---|---|
| Dai-ichi Kogyo Seiyaku Co., Ltd. | National Institute of Advanced Industrial Science and Technology (AIST) | 5 |
| Corning Incorporated | LIU XIAORONG | 2 |
| Corning Incorporated | GADKAREE KISHOR PURUSHOTTAM | 2 |
第一工业制药株式会社 (Dai-ichi Kogyo Seiyaku) and 国立研究开发法人产业技术综合研究所 (AIST) co-hold 5 families, the densest collaboration link in the dataset — everything else is a single shared pair.
Source: Patsnap Eureka. Co-assignee relationships and derived observations. Derived from a Patsnap search on Hybrid Supercapacitor Advanced Materials covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
Players
Who is filing, and where the field is open
Recent-year momentum across the tracked assignees is flat: every name surfaced in the momentum data shows zero filings in the latest year, reinforcing the trend-level read that this is a field past its filing peak rather than one accelerating toward it.
Momentum check
0 in latest year
across six tracked assignees
Established filers have gone quiet
株式会社斯巴鲁, 康宁公司, 罗伯特博世有限公司(德国), 沃尔塔私人有限公司, 耶达研究及发展有限公司 and 优比克斯公司 all show zero filings in the most recent tracked year. That does not necessarily mean disengagement — the 18-month publication lag means recent filings from any of these may simply not have surfaced yet — but it does mean none currently reads as an active filer by the visible record.
Recent-year momentum
Collaboration pattern
5 shared families
Dai-ichi Kogyo Seiyaku + AIST
Materials-maker/research-institute pairing stands out
The one collaboration link with real depth pairs a specialty chemicals producer with a public research institute, suggesting the more durable route to differentiated electrode material claims runs through applied materials science partnerships rather than corporate joint ventures.
Co-assignee pairs
Filing venue
106 CN records
largest single office
China-based filing leads by volume
With 106 of 305 families filed in China against 61 in the US, competitive intelligence on this space needs to start with the Chinese patent register rather than treat it as a secondary market check.
Receiving office split
Recent-year filing momentum
| Assignee | Recent year | YoY |
|---|---|---|
| Subaru Corporation | 0 | — |
| Volta Private Limited | 0 | — |
| Robert Bosch GmbH (Germany) | 0 | — |
| Yeda Research and Development Co. Ltd. | 0 | — |
| Corning Incorporated | 0 | — |
| Ubiqus Corporation | 0 | — |
| Boda Co., Ltd. | 0 | — |
| GODI INDIA PVT LTD | 0 | — |
Source: Patsnap Eureka. Assignee-level momentum. Derived from a Patsnap search on Hybrid Supercapacitor Advanced Materials covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
What's next
Where to take this analysis
The landscape points to a mature but still fragmented filing field — useful next steps depend on whether you are clearing a design or scouting a gap.
Run a freedom-to-operate check on China filings first
With 106 of 305 families filed in China, any clearance opinion built only on US or EPO prior art will miss the largest single block of claims in this space.
Explore FTO workflows in EurekaMap the H01M/H01G overlap before drafting
76 families straddle battery and capacitor classification. Drafting a new electrode-material claim without checking both class families risks colliding with prior art indexed outside the obvious capacitor search.
Search cross-class prior art in EurekaTreat the citation leaders as prior art, not benchmarks
The most-cited records in this corpus are older filings that have simply had more time to accumulate citations. Use them to understand foundational claim scope, not to gauge what is commercially current.
Trace citation networks in EurekaSource: Patsnap Eureka. Forward-looking reading of the same dataset. Derived from a Patsnap search on Hybrid Supercapacitor Advanced Materials covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
FAQ
Common questions about this landscape
No — filings peaked at 44 in 2020 and had fallen to 22 by the 2022 midpoint, with only 12 recorded in the most recent tracked year. Some of that recent drop is the normal 18-month publication lag rather than a true collapse in filing activity, but the multi-year decline from 2020 through 2022 is a real trend, not a reporting artefact. Anyone assessing this space should treat it as past its filing peak rather than as an emerging technology curve.
China, by a clear margin — 106 of the 305 tracked families were filed there, ahead of the United States (61) and India (53). If you only search USPTO or EPO records you are missing the largest single venue in the dataset. A thorough freedom-to-operate check on hybrid supercapacitor electrode materials needs a Chinese-language patent search as a baseline, not an afterthought.
Meaningful but not dominant: 76 of the 305 families also carry an H01M (battery) IPC code, versus all 305 carrying the core H01G capacitor code by construction of the search. This reflects lithium-ion capacitor designs, which deliberately borrow battery-type electrode chemistry to boost energy density. The majority of families, though, sit more purely within capacitor classification — pseudocapacitive and activated-carbon material claims in particular tend not to cross into battery IPC codes.
It covers an electrode material — for either a lithium-ion battery or a lithium-ion capacitor — built from a composite powder where a lithium-ion-occluding component is coated or supported with sulfur-modified cellulose to improve hydrophilicity and dispersibility without degrading electrode performance. The claim is specifically about the surface-treatment chemistry, not the electrode architecture or cell design more broadly. Anyone designing a hydrophobic active-material electrode for either lithium-ion capacitors or lithium-ion batteries should check this family before finalising a coating approach.
The IPC composition data points to a few pockets: nanotechnology-applications overlap (B82Y, 25 families) and inorganic-compound chemistry (C01B/C01G, 22 and 12 families respectively) are present but thin relative to the core electrode-material claim density. Specific chemistries such as sulfur-modified cellulose binder coatings, transition metal nitride aerogel electrodes and pre-lithiation additive systems show low filing density in this corpus. Low density is not proof of technical viability, only of unclaimed space — any filing there still needs its own performance validation.
Answers are grounded in the same dataset. Derived from a Patsnap search on Hybrid Supercapacitor Advanced Materials covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
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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.
Nothing on this page constitutes an exhaustive prior-art, novelty, freedom-to-operate, or validity search, nor does it constitute legal, financial, investment, or professional advice, and it should not be relied upon as such. Any patent, commercial, or strategic decision should be verified independently and reviewed with qualified patent, legal, and domain professionals. Patsnap makes no warranties, express or implied, as to the accuracy, completeness, or fitness for any particular purpose of the information presented.
Machine translation. Assignee and organisation names originally recorded in Chinese, Japanese or Korean have been rendered into English by an AI translation step so that the tables stay readable. These renderings are best-effort and may not match a company's registered English name; the original name is what the underlying patent record carries, and it is what any Eureka query launched from this page uses.