Solid-State Battery Manufacturing Process Patent Landscape
Solid-State Battery Manufacturing Process Patent Landscape in 2026
The solid-state battery manufacturing process space is a concentrated, fast-growing field dominated by a small group of Korean and Japanese energy and electronics firms, with LG Energy Solution holding the largest share. Annual filings have risen sharply over the multi-year window, with 2023–2024 representing the most active period on record, though the most recent months remain under-counted due to publication lag.
LG Energy Solution leads a tightly held field with Honda and Samsung close behind
LG Energy Solution holds the top position with 5 patent families, followed by Honda Motor at 4 and Samsung Electro-Mechanics at 4. The top five filers collectively account for 74% of the combined output of the hundred largest filers, signaling a highly concentrated competitive structure.
The tier gap between the top cluster and the remaining applicants is pronounced: beyond the top four, each remaining applicant holds only 1 patent family. This suggests that the core manufacturing IP is being secured by a narrow group of established players, leaving limited room for mid-tier challengers at present.
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 1 | LG Energy Solution | 5 | |
| 2 | Honda Motor Co., Ltd. | 4 | |
| 3 | Samsung Electro-Mechanics Co., Ltd. | 4 | |
| 4 | Samsung SDI Co., Ltd. | 3 | |
| 5 | DH Co., Ltd. | 1 | |
| 6 | Murata Manufacturing Co., Ltd. | 1 |
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 7 | Deepal Automobile Technology Co., Ltd. | 1 | |
| 8 | Korea Electronics Technology Institute | 1 | |
| 9 | Toyota Motor Corporation | 1 | |
| 10 | EBS Square Inc. | 1 | |
| 11 | Ford Global Technologies LLC | 1 |
The leaders’ positions imply that LG Energy Solution, Honda, and Samsung Electro-Mechanics are actively building defensive manufacturing process portfolios, each arriving as new entrants in the recent filing window. This reflects a strategic shift toward locking in process IP as solid-state technology approaches commercial readiness.
The most recent 18–24 months of filing data are subject to publication lag and will understate true activity; the field’s current momentum is therefore likely stronger than the corpus totals reflect. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
A sharp filing surge since 2023, anchored overwhelmingly in core battery cell technology
The filing trend and technology composition charts together reveal a field that accelerated dramatically in 2023–2024 after years of minimal activity, concentrated almost entirely in the H01M battery and electrochemical cell class.
Annual filing trend
Filings were sparse and irregular from 2017 through 2022 — never exceeding 3 in any single year and reaching zero in 2018, 2020, and 2022. Activity surged to 6 families in 2023 and 9 in 2024, representing a 275% growth rate over the recent window. The 2025 and 2026 figures should be read as minimums; publication lag means actual recent-year totals will be materially higher when fully published.
↗ Hover for values · click a bar to ask EurekaTechnology composition
H01M (batteries, cells, and fuel cells) accounts for all 22 patent families in the corpus, confirming that the dominant focus is electrochemical cell architecture and electrode materials. Adjacent IPC classes — including solid waste disposal (B09B), cutting machines (B26D), perforating and punching (B26F), electric vehicle propulsion (B60L), conveying and material handling (B65G), nanotechnology applications (B82Y), and compounds of other metals (C01G) — each appear in only 1 record, underscoring how narrowly defined the current manufacturing process IP landscape is.
↗ 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.
Solid electrolyte and all-solid-state battery comp…
The present disclosure relates to a solid electrolyte that is a composite including a first glass ceramic compound and a second glass ceramic compound. The first glass ceramic compound includes a Na super-ionic conductor (NASICON) structure compound or a garnet structure compound. The second glass ceramic compound includes Li, B, O, and halogen elements… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Positive electrode for solid-state battery, manufa… | 11 |
| 2 | Solid state battery | 5 |
| 3 | Solid electrolyte sheet and solid state battery | 3 |
| 4 | Cathode for all-solid-state battery, and all-solid… | 2 |
| 5 | Method for recovering organic solvent from all sol… | 1 |
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 means for R&D investment decisions
The combination of rapid growth, high concentration, and near-universal focus on core cell technology points to a field where process IP is being claimed quickly by a few large players, leaving specific adjacent manufacturing steps relatively open.
Growth stage: annual filings rising with 2024 as peak year to date
The lifecycle is classified as Growth, driven by a 275% increase in filing activity over the recent window. Annual volume peaked at 9 patent families in 2024, and the field has not yet shown signs of saturation. The 2025 figures remain under-counted due to publication lag, so the true trajectory is likely to remain upward in the near term.
Growth stageTop five filers hold 74% of the hundred largest filers’ combined output
The top five applicants — LG Energy Solution, Honda Motor, Samsung Electro-Mechanics, Samsung SDI, and DH Co. Ltd — together account for 74% of the combined patent families of the hundred largest filers. With every applicant outside the top four holding only a single patent family, the concentration is extreme. New entrants face the challenge of differentiating on process steps not yet claimed by the incumbents.
High concentrationNo co-applicant activity detected in this corpus
Evidence pending: the collaboration dataset for this topic returns no co-filing relationships. All filings in scope appear to be single-applicant submissions, suggesting that manufacturing process IP in this field is currently treated as proprietary rather than shared through joint development agreements or consortia. This may change as the technology matures and standardization pressures increase.
No co-filings detectedUnited States is the primary filing jurisdiction, with Korea and Europe secondary
The United States leads with 12 patent records, making it the dominant jurisdiction for solid-state battery manufacturing process protection. Europe (EPO) and South Korea each account for 3 records, WIPO PCT for 2, and China and Germany for 1 each. The US-first pattern reflects where commercial deployment and litigation risk are currently concentrated, while the PCT and EPO filings suggest applicants are beginning to build international protection layers.
US-led geographyGo 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.
LG Energy Solution and Honda lead with complementary process emphases
The two largest filers entered the corpus as new entrants in the recent filing window, each concentrating on core H01M battery and electrode technology, but with Honda showing broader coverage across structural and assembly subclasses.
LG Energy Solution
LG Energy Solution holds 5 patent families, the largest share in the corpus, with filing momentum flagged as a new entrant in the recent window. Its technology focus is concentrated in H01M 10 (secondary batteries and manufacturing methods) and H01M 4 (electrodes), indicating a strategy centered on cell-level manufacturing process IP rather than broader system integration.
families: 5Honda Motor
Honda Motor holds 4 patent families and also entered as a new entrant in the recent filing window. Its portfolio spans H01M 10 (4 records), H01M 4 (2 records), and H01M 50 (1 record), suggesting a slightly broader process scope that includes battery housing and assembly components alongside electrode and cell manufacturing. This breadth may reflect Honda’s need to control the full manufacturing chain for automotive-grade solid-state cells.
families: 4| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| LG Energy Solution | 5 | ▲ new entrant |
| Samsung Electro-Mechanics Co., Ltd. | 3 | ▲ new entrant |
| Samsung SDI Co., Ltd. | 2 | ▲ new entrant |
| Ford Global Technologies LLC | 1 | ▲ new entrant |
| Korea Electronics Technology Institute | 1 | ▲ new entrant |
| Deepal Automobile Technology Co., Ltd. | 1 | ▲ new entrant |
| EBS Square Inc. | 1 | ▲ new entrant |
Under-served manufacturing steps: material handling, cutting, and end-of-life processing
Several IPC branches adjacent to the dominant H01M class appear in only 1 record each, indicating areas where manufacturing process IP is sparse relative to the overall field activity. These are observations of relative sparsity; entry-path viability would require further validation.
B65G · Conveying and material handling
Only 1 patent record covers conveying and material handling in this corpus, filed by Korea Electronics Technology Institute. Solid-state cell manufacturing requires precise, contamination-controlled material transport for electrolyte layers and electrode stacks — a process step where dedicated IP is nearly absent. For players with automation or precision manufacturing expertise, this represents a potentially under-claimed adjacent area, though the small corpus size means the signal should be verified against a broader search before drawing firm conclusions.
Search this in Eureka →B09B · Solid waste disposal (manufacturing scrap and electrolyte recovery)
Solid waste disposal and solvent recovery from solid-state battery manufacturing appear in only 1 record in this corpus, associated with Samsung SDI’s focus area. The most-cited patent title in the evidence explicitly references recovery of organic solvent from all-solid-state battery manufacturing, suggesting this is a technically relevant process challenge. As production volumes scale, process waste management and solvent recovery will face regulatory and cost pressures, making this a plausible adjacent area for IP development — though current evidence is limited to a single filing.
Search this in Eureka →How leaders differ by technology route across manufacturing process subclasses
Strength of each leader across the main technology routes.
| Player | H01M 10 · Batteries, cells & fuel cells | H01M 4 · Batteries, cells & fuel cells | H01M 50 · Batteries, cells & fuel cells | B09B 101 · Solid waste disposal | B09B 3 · Solid waste disposal |
|---|---|---|---|---|---|
| LG Energy Solution | Strong · 5 | Strong · 5 | Absent | Absent | Absent |
| Honda Motor Co., Ltd. | Strong · 4 | Moderate · 2 | Moderate · 1 | Absent | Absent |
| Samsung Electro-Mechanics Co., Ltd. | Strong · 4 | Moderate · 2 | Absent | Absent | Absent |
| Samsung SDI Co., Ltd. | Strong · 1 | Strong · 1 | Absent | Strong · 1 | Strong · 1 |
| DH Co., Ltd. | Strong · 1 | Strong · 1 | Strong · 1 | Absent | Absent |
| EBS Square Inc. | Strong · 1 | Strong · 1 | Absent | Absent | Absent |
| Murata Manufacturing Co., Ltd. | Strong · 1 | Absent | Strong · 1 | Absent | Absent |
Frequently asked questions
The in-scope corpus contains 22 patent families. Given the publication lag affecting the most recent 18–24 months of filings, the true current total is likely higher than this figure reflects.
LG Energy Solution holds the largest position with 5 patent families, followed by Honda Motor and Samsung Electro-Mechanics each with 4, and Samsung SDI with 3.
It is highly concentrated: the top five filers account for 74% of the combined patent families of the hundred largest filers. All applicants beyond the top four hold only a single patent family each.
The United States is the leading jurisdiction with 12 patent records. Europe (EPO) and South Korea each account for 3 records, WIPO PCT for 2, and China and Germany for 1 each.
Filings were sparse from 2017 to 2022, peaking at just 3 in 2019. Activity surged to 6 families in 2023 and 9 in 2024, representing a 275% growth rate over the recent window. The 2025 and 2026 figures are under-counted due to publication lag.
Several adjacent IPC classes — including conveying and material handling (B65G), solid waste disposal and solvent recovery (B09B), cutting machines (B26D), and nanotechnology applications (B82Y) — each appear in only 1 patent record, indicating relative sparsity compared to the dominant H01M class. These are observations of low filing density; their viability as entry points requires further technical and commercial validation.
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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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