Zinc-Air Battery Current Collector Patent Landscape
Zinc-Air Battery Current Collector Patent Landscape in 2026
The patent corpus for zinc-air battery current collectors is extremely thin, with a single patent family on record filed by Hyundai Motor Co., Ltd. in South Korea. The space is effectively nascent, presenting a near-open field for new entrants with technical capability in electrochemical cell design.
A single applicant defines an essentially uncontested space
Hyundai Motor Co., Ltd. holds the sole patent family in scope, making it the undisputed leader by default in this narrowly defined technology area.
Concentration is absolute at this scale: the top five filers account for all of the activity among the hundred largest filers, a figure that reflects the near-total absence of competing filings rather than a deliberate defensive portfolio strategy.
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 1 | Hyundai Motor Co., Ltd. | 1 |
Hyundai’s position, while numerically dominant, rests on a single family filed in 2017 with no subsequent activity visible in the record, suggesting the position has not been actively reinforced.
Activity in the most recent 18–24 months may be under-counted due to standard patent publication lag and should not be interpreted as a confirmed absence of new filings. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
A single 2017 filing with no recorded follow-on activity
The annual filing trend and technology composition together paint a picture of a domain that has seen minimal structured investment to date, concentrated in a single IPC branch.
Annual filing trend
One patent family was filed in 2017; all subsequent years through 2026 show zero recorded activity. Given publication lag, filings from 2025 onward may not yet be fully visible in the data.
↗ Hover for values · click a bar to ask EurekaTechnology composition
The entire corpus falls within H01M (Batteries, cells and fuel cells), indicating that zinc-air battery current collector work has so far been framed exclusively as an electrochemical cell problem, with no adjacent branches yet represented.
↗ 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.
Current collector of flow through type metal-air b…
The present invention is intended o provide a very efficient pipe-type metal-air battery current collector capable of reducing assembly process, cost, and working time, compared to connecting a conventional current collector using a welding method, by improving a current collecting structure of each cell in a pipe-type metal-air battery to a structure in… (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 structure implies for R&D investment decisions
With only one patent family on record, most conventional competitive-intelligence signals — momentum, tier gaps, route differentiation — cannot be meaningfully derived. The observations below are framed accordingly.
Life-cycle stage: evidence pending
The evidence does not provide a determinable life-cycle stage for this topic. The sole filing dates to 2017 and no momentum data is available. The corpus is too sparse to distinguish between an embryonic technology that has not yet attracted filings and a niche that has been actively bypassed by the industry.
Embryonic / UnclassifiedOne assignee, one family — structurally open
Hyundai Motor Co., Ltd. holds the only documented family, but a single filing does not constitute a meaningful barrier. Any well-resourced entrant working on zinc-air electrochemistry could establish a competitive position without navigating a crowded prior-art thicket. The absence of multiple assignees removes the usual freedom-to-operate complexity.
Near-zero incumbent densityOne co-filing pair: Hyundai Motor and Kia
The evidence records one collaborative filing between Kia Corporation and Hyundai Motor Co., Ltd., consistent with the two companies’ established joint R&D structure within the Hyundai Motor Group. No external partners — such as battery makers or materials suppliers — appear in the record, leaving ecosystem collaboration largely unexplored.
Intra-group onlyFiling confined to South Korea
The single patent family was filed exclusively in South Korea. No PCT, US, European, Chinese, or Japanese counterparts are on record, meaning the technology is not yet protected in the major EV battery markets. This creates an open jurisdictional landscape for parties seeking to file in those regions.
KR 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.
| Applicant | Collaborator | Co-filings |
|---|---|---|
| Kia Corporation | Hyundai Motor Co., Ltd. | 1 |
Co-filing pairs, ranked by the number of jointly-filed patent families.
Hyundai Motor Group entities account for the full record
Both named filers in the collaboration record — Hyundai Motor Co., Ltd. and Kia Corporation — are subsidiaries of the Hyundai Motor Group, confirming that the entire documented corpus originates from a single corporate family.
Hyundai Motor Co., Ltd.
Hyundai Motor Co., Ltd. holds 1 patent family — the entirety of the indexed corpus. Their technology focus sits within H01M 12, H01M 4, and H01M 8, covering metal-air cells, electrodes, and fuel cells. No momentum data is available, so trajectory cannot be assessed from current evidence.
patent families: 1Kia Corporation
Kia Corporation appears as a co-filer alongside Hyundai Motor Co., Ltd. on the same collaborative filing. Their recorded technology focus mirrors Hyundai’s — H01M 12, H01M 4, and H01M 8 — reflecting shared R&D resources within the group. No independent family count is separately attributed to Kia in the ranking.
patent families: co-filerUnder-served technical routes adjacent to the current corpus
With the entire corpus residing in H01M, all adjacent IPC classes are by definition unrepresented. Two branches with plausible technical relevance to zinc-air current collectors are noted below as observations of relative sparsity.
H01M 50 · Cell casings, separators, and structural components
Current collector design is tightly coupled to cell housing and separator architecture, yet H01M 50 carries no filings in this corpus. Entrants focusing on integrated structural current collectors — a known challenge in zinc-air cells due to zinc dendrite and electrolyte management — would find this branch effectively uncontested. The entry path is straightforward for teams already working on cell assembly.
Search this in Eureka →C23C / C25D · Surface treatment and electrodeposition of current collector materials
Corrosion resistance and surface conductivity of the current collector are critical performance determinants in zinc-air systems, yet no filings in the materials-processing classes C23C or C25D appear in the record. Teams with expertise in electrodeposition or coating of conductive substrates could establish a differentiated position here, particularly for non-noble metal current collectors aimed at cost reduction.
Search this in Eureka →How leaders differ by technology route
Strength of each leader across the main technology routes.
| Player | H01M 12 · Batteries, cells & fuel cells | H01M 4 · Batteries, cells & fuel cells | H01M 8 · Batteries, cells & fuel cells |
|---|---|---|---|
| Hyundai Motor Co., Ltd. | Strong · 1 | Strong · 1 | Strong · 1 |
Frequently asked questions
The evidence shows 1 patent family in scope, filed by Hyundai Motor Co., Ltd. and recorded in South Korea.
Hyundai Motor Co., Ltd. is the sole ranked assignee, holding the only patent family on record. Kia Corporation appears as a co-filer on that same family.
The single patent family was filed in 2017. No subsequent filings appear in the trend data through 2026, though recent years may be subject to publication lag.
The only recorded jurisdiction is South Korea. No counterpart filings in the US, Europe, China, Japan, or via PCT are evident in the current corpus.
All recorded filings fall within H01M — covering batteries, cells, and fuel cells. Adjacent materials-processing and structural component classes carry no filings in this corpus.
The extremely low filing density means there is no meaningful prior-art thicket, and major jurisdictions outside South Korea are fully open. However, the sparseness also indicates limited validated commercial activity to date; entrants should treat this as an early-stage, high-uncertainty area rather than a confirmed commercial opportunity.
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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.