Bipolar Battery Anode Material Patent Landscape 2026
Bipolar Battery Anode Material Patent Landscape in 2026
The indexed patent corpus for bipolar battery anode material currently comprises a single patent family, held entirely by Zhejiang University of Technology, signalling an extremely nascent and essentially open field. Activity is confined to China and first appeared in 2025, leaving the global competitive landscape nearly blank and wide open for early movers.
One applicant, one family — the field is barely formed
Zhejiang University of Technology ranks first — and only — in the applicant ranking, holding the sole patent family currently indexed for bipolar battery anode material.
Concentration is absolute: the top five filers account for the entirety of the hundred largest filers’ combined total, a figure that in this case collapses to a single institution. There is no discernible tier gap because there is no second tier.
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 1 | Zhejiang University of Technology | 1 |
The leader’s position is therefore less a competitive moat than an unopposed first foothold; any new entrant today would immediately become a co-leader by filing a single family.
The corpus reflects only what has been published to date; filings from the most recent 18–24 months are subject to publication lag and the true volume of unpublished work may be higher. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
A single 2025 filing across two IPC branches marks the field’s public debut
The annual filing trend and the technology composition together tell a consistent story: this topic crossed the threshold of public patent disclosure only in 2025, and the single record spans both polymer chemistry and electrochemical cell technology.
Annual filing trend
No activity appears in the indexed record from 2017 through 2024; a single family surfaces in 2025. The 2025 and 2026 bars should be read as provisional given standard publication lag of 18–24 months.
↗ Hover for values · click a bar to ask EurekaTechnology composition
The sole family is classified under both C08G (condensation polymers) and H01M (batteries, cells and fuel cells), indicating that the disclosed invention bridges polymer synthesis and electrochemical cell design — a combination that is sparse in the broader battery anode literature.
↗ 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.
一种双极性COF负极材料及其应用
本发明提供了一种双极性COF负极材料的制备方法，将2,2’‑联吡啶‑5,5’‑二甲醛、2,4,6‑三(4‑氨基苯基)‑1,3,5‑三嗪、有机溶剂A混合后超声混合均匀，继续加入醋酸水溶液得到混合液，对混合液进行真空密封处理，将真空密封的混合液于60‑160℃反应12‑140h得到反应产物，将反应产物滤掉液体后，依次经过有机溶剂B洗涤、索提、真空干燥得到双极性COF负极材料，所得到的双极性COF负极材料可作为双极性的电池负极材料，可实现可逆的充放电，具有较宽的电化学窗口0.1‑3 V和高比容量211.7 mAh/g，以及优异的电化学充放电稳定性7000次，作为电池负极材料具有潜在的应用价值。 (excerpt from the patent abstract)
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.
What the nascent structure means for R&D investment
With a corpus of one family, almost every structural inference is directional rather than statistical. The observations below should inform opportunity sizing rather than competitive benchmarking.
Pre-emergence: no life-cycle stage determinable
The evidence does not support assignment of a standard life-cycle stage — the corpus is too sparse for trend analysis. The field is best described as pre-emergence: public patent activity began in 2025, the technology has not yet attracted multiple independent filers, and no citation network has formed. An R&D team entering now would be shaping, not responding to, the competitive landscape.
Pre-emergenceAbsolute concentration with no defensive depth
A single assignee holds every indexed family, so concentration metrics reach their theoretical maximum. However, this does not represent an entrenched position: one family filed in 2025 provides minimal prior-art density and no citation-based moat. A competitor filing even a handful of families across the C08G–H01M intersection could rapidly reshape the concentration picture.
Wide openNo co-applicant activity recorded
Evidence pending: the collaboration data contains no co-filing relationships. The sole family is attributed to Zhejiang University of Technology without recorded co-applicants. This absence may reflect either independent development or agreements not yet visible in the public record. It also means there are no established consortium relationships a new entrant would need to navigate.
No dataChina is the only jurisdiction in scope
All indexed activity is filed through the China national office. The US, EP, JP, KR, and PCT routes show no indexed families, leaving those jurisdictions entirely uncontested. An organization seeking freedom to operate in major battery markets outside China, or wishing to establish territorial priority, faces no identified prior-art barrier in this specific sub-field today.
China onlyGo beyond the landscape: Eureka’s TRIZ Solution agent breaks down an R&D problem and returns patented concept solutions, each with a technical approach and cited patent & literature evidence.
Co-filing pairs, ranked by the number of jointly-filed patent families.
Zhejiang University of Technology: sole public filer
The applicant ranking contains one institution. The trajectory and technology emphasis below are drawn directly from the indexed family and IPC classification data.
Zhejiang University of Technology
Zhejiang University of Technology holds the only indexed patent family in this space, classified under C08G 12 (condensation polymers), H01M 10, and H01M 4 (batteries, cells and fuel cells). The filing appeared in 2025. No prior-period baseline is available, so momentum cannot be quantified; the institution is effectively a new entrant by definition in this topic.
patent families: 1No challenger identified
The indexed corpus contains no second-ranked applicant. Any organization filing in the bipolar battery anode material space would immediately enter the ranking. This position is evidence pending until additional families publish.
patent families: —Under-served routes adjacent to the C08G–H01M intersection
With only one family in scope, virtually every technical branch adjacent to bipolar battery anode material is unoccupied in the public record. The two observations below highlight branches with plausible technical relevance where no indexed prior art currently exists.
H01M 4 sub-classes: active anode material engineering
H01M 4 covers electrode materials and fabrication for secondary cells. Within the indexed corpus it appears only once, in conjunction with polymer chemistry. Sub-classes addressing silicon-based, carbon-based, or metal-oxide active materials for bipolar cell architectures are not represented. Because bipolar stack design places distinct mechanical and ionic demands on anode layers, this branch has plausible technical value. An entry path would involve combining established anode material know-how with bipolar current-collector geometry.
Search this in Eureka →C08G polymer electrolyte integration with bipolar anodes
The sole family bridges C08G condensation polymers with H01M cell technology, suggesting a polymer-based binder or electrolyte role. Adjacent work on solid polymer electrolytes or ionically conductive binder systems specifically tailored for bipolar configurations is absent from the indexed record. This represents an under-served intersection given the growing interest in solid-state bipolar cell architectures. A team with polymer electrolyte expertise could establish early prior art here with relatively low filing competition.
Search this in Eureka →Technology route comparison across leading applicants
Strength of each leader across the main technology routes.
| Player | C08G 12 · Condensation polymers | H01M 10 · Batteries, cells & fuel cells | H01M 4 · Batteries, cells & fuel cells |
|---|---|---|---|
| Zhejiang University of Technology | Strong · 1 | Strong · 1 | Strong · 1 |
Frequently asked questions
The indexed corpus currently contains one patent family. This reflects the publicly available record as of the evidence snapshot; unpublished filings from the most recent 18–24 months may not yet appear.
Zhejiang University of Technology is the sole indexed applicant, holding the only patent family in the ranked corpus. No commercial or industrial assignee appears in the current record.
China is the only jurisdiction represented in the indexed corpus. The US, European, Japanese, Korean, and PCT routes currently show no indexed families for this specific topic.
The single indexed family is classified under C08G (condensation polymers) and H01M (batteries, cells and fuel cells), specifically sub-classes H01M 10 and H01M 4. This dual classification suggests the invention spans polymer chemistry and electrochemical cell design.
Based on the indexed evidence, the field is best characterized as pre-emergence. No life-cycle stage can be formally assigned given the single-family corpus. Public patent activity first appeared in 2025, and no citation network or multi-filer competitive dynamic has yet formed.
The indexed evidence highlights two adjacent branches with low prior-art density: active anode material engineering under H01M 4 sub-classes (e.g., silicon-based or carbon-based anodes for bipolar architectures), and polymer electrolyte or binder systems under C08G tailored for bipolar cell configurations. Both observations are based on relative sparsity in the current corpus and should be validated with a freedom-to-operate search before R&D investment.
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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.