LFP Electrode Binder Patent Landscape 2026
LG Energy Solution holds a commanding lead in LFP electrode binder patenting, with the top five filers among the hundred largest collectively accounting for 45% of that group’s combined output. The field is in a Growth stage—multi-year filing volume has expanded sharply, though annual output has eased from its 2022 peak and recent years remain understated by publication lag.
LG Energy Solution leads a concentrated, growth-stage field
LG Energy Solution sits at the top of the applicant ranking with 44 patent records, more than twice the count of the nearest rival, Samsung SDI at 18. BYD, Denka, and Belenos Clean Power fill out the next tier at 7, 6, and 5 patent records respectively.
The top five filers among the hundred largest account for 45% of that group’s combined total—a high concentration for a niche materials topic—with a steep drop-off from the leader to all subsequent applicants. This two-tier structure suggests the competitive core is narrow, but the long tail of academic and startup filers signals active experimentation below the top tier.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | LG Energy Solution Ltd. | 44 | |
| 2 | Samsung SDI Co., Ltd. | 18 | |
| 3 | BYD Co., Ltd. | 7 | |
| 4 | Denka Co., Ltd. | 6 | |
| 5 | Belenos Clean Power Holding | 5 | |
| 6 | SEI Corp. | 4 | |
| 7 | Indian Institute of Technology Roorkee | 4 | |
| 8 | UT-Battelle LLC | 4 | |
| 9 | Jiangxi Anchi New Energy Technology Co., Ltd. | 3 | |
| 10 | Wanxiang 123 Co., Ltd. | 3 |
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 11 | Contemporary Amperex Technology (Hong Kong) Limited | 3 | |
| 12 | KOREA ADVANCED INST OF SCI & TECH | 3 | |
| 13 | General Research Institute for Nonferrous Metals | 2 | |
| 14 | SHAANXI COAL & CHEM TECH INST | 2 | |
| 15 | Harbin Institute of Technology | 2 | |
| 16 | Kim Jae Kwang | 2 | |
| 17 | Murata Manufacturing Co., Ltd. | 2 | |
| 18 | DIRECTOR GENERAL DEFENCE RES & DEV ORG | 2 | |
| 19 | French Alternative Energies and Atomic Energy Commission (CEA) | 2 | |
| 20 | Chongqing Research Institute of Harbin Institute of Technology | 2 |
LG Energy Solution’s position, reinforced by its near-exclusive focus on battery-cell IPC classes (H01M 4 and H01M 10), indicates that leading binder IP is primarily developed inside integrated cell manufacturers rather than by independent materials companies. That orientation narrows freedom-to-operate for new entrants targeting the same battery-system claims.
Filing counts for 2025 and 2026 are understated due to standard patent-publication lag of 18–24 months; apparent plateaus in those years should not be read as a slowdown. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Sharp multi-year growth, battery-cell claims dominant, adjacent polymer and nano branches sparse
The trend chart captures a field that expanded rapidly after 2020, while the technology composition chart reveals that the vast majority of activity is anchored in battery and cell IPC classes with only modest coverage of upstream polymer and adhesive chemistry.
Annual filing trend
Filings rose from single digits in 2017–2019 to a peak of 27 records in 2022, then settled to the low-to-mid twenties through 2024–2025. The three-year recent window sits 196% above the prior three-year window, confirming genuine multi-year expansion. Counts for 2025 and 2026 are incomplete due to publication lag and should not be interpreted as a decline.
↗ Hover for values · click a bar to ask EurekaTechnology composition
H01M (batteries, cells and fuel cells) dominates the IPC mix with 169 records, dwarfing every other class. C01B (non-metallic elements and inorganic compounds) at 13 records, C08F (addition polymers) at 10, B82Y (nanotechnology) at 7, and C09J (adhesives) at 6 represent the next layers, each with substantially lower coverage—pointing to under-served upstream chemistry branches.
↗ 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.
LITHIUM-EISEN-PHOSPHAT-LEISTUNGSBATTERIE UND VERFA…
A lithium iron phosphate power battery includes: a battery case; a battery cell in the battery case, including: a positive plate including a positive current collector and a positive active material formed thereon, the positive active material including lithium iron phosphate having a primary particle diameter of no more than 200nm and a D50 of no more than… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Open porous electrically conductive nanocomposite … | 93 |
| 2 | Method for Preparing Lithium Iron Phosphate as a P… | 59 |
| 3 | Open porous electrically conductive nanocomposite … | 36 |
| 4 | Coating compositions for electrode compositions an… | 33 |
| 5 | Method for preparing lithium iron phosphate as a p… | 27 |
| 6 | High power electrode materials | 19 |
| 7 | 一种软包装水系磷酸铁锂动力电池及其制备方法 | 18 |
| 8 | 一种高能量密度磷酸铁锂电池 | 16 |
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 competitive structure means for R&D investment
The combination of high concentration, Growth-stage dynamics, and thin coverage of polymer and nano branches shapes distinct strategic options depending on whether an organization is entering, challenging, or seeking white space.
Growth stage with easing annual volume since 2022
The field is classified as Growth: the most recent three-year filing window is 196% above the prior three-year window, confirming that activity has expanded substantially on a multi-year basis. However, annual volume peaked in 2022 and has moderated since; the most recent years are further understated by publication lag. Entrants still have room to establish positions before the field matures into consolidation.
Growth stageTwo-tier structure with LG Energy Solution well ahead
LG Energy Solution’s 44 patent records place it more than 2.4× ahead of Samsung SDI (18 records), creating a clear tier-one/tier-two gap. Below Samsung SDI, BYD, Denka, and Belenos cluster between 5 and 7 records each. This concentration means challengers must either differentiate on polymer chemistry (C08F, C08G) or binder-application process routes rather than competing head-on in cell-level H01M claims.
High concentrationLimited co-filing; Wanxiang Group and Wanxiang 123 most active co-applicants
The most active co-filing pair is Wanxiang Group and Wanxiang 123 Co., with 3 jointly filed records—effectively an intra-group relationship. Denka and SEI Corporation share 1 co-filed record. No cross-industry or university–industry co-filing clusters are evident at scale, suggesting that collaborative IP development in this space remains nascent and that partnership-based entry is an open avenue.
Nascent collaborationEPO leads filings; China and US nearly tied; India emerging
Europe (EPO) leads jurisdictional coverage with 54 records, followed closely by China at 44 and the United States at 42. India shows notable presence at 18 records—well above Canada and PCT filings at 4 each—reflecting both Indian academic activity (IIT Roorkee) and domestic industry interest. Organizations seeking broad protection should prioritize all three major offices; India represents a lower-cost but growing validation market.
EPO · CN · US · INGo 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 |
|---|---|---|
| Wanxiang Group Corporation | Wanxiang 123 Co., Ltd. | 3 |
| Denka Co., Ltd. | Sumitomo Electric Industries (SEI) Corp. | 1 |
Co-filing pairs, ranked by the number of jointly-filed patent families.
LG Energy Solution and Samsung SDI anchor the field; BYD and Denka differentiate by chemistry route
The top two players are both Korean integrated cell manufacturers with overlapping H01M-class focus, but their scale and trajectory differ markedly. Tier-two filers show more diverse IPC footprints.
LG Energy Solution
LG Energy Solution holds 44 patent records, all concentrated in H01M 4 (electrode) and H01M 10 (electrochemical cell) classes, with a single record touching C01B 25 (phosphate compounds). Its momentum is classified as a new entrant in the recent filing window, with 41 of its 44 records filed in the most recent period—indicating that this portfolio was built rapidly and recently rather than accumulated over many years. That recency makes the position both strong in scope and potentially still evolving.
patent records: 44Samsung SDI
Samsung SDI holds 18 patent records, focused entirely on H01M 4 and H01M 10 classes—mirroring LG Energy Solution’s route but at roughly 40% of the scale. Its recent filing trend is also flagged as a new entrant, with 3 records in the recent window, suggesting that its historical base accounts for most of the portfolio. BYD (7 records) stands out for combining C01B 25 (inorganic phosphate chemistry) alongside battery-cell claims, indicating a more materials-upstream approach than either Korean leader.
patent records: 18| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| LG Energy Solution Ltd. | 41 | ▲ new entrant |
| Samsung SDI Co., Ltd. | 3 | ▲ new entrant |
| Jiangxi Anchi New Energy Technology Co., Ltd. | 1 | ▲ new entrant |
Under-served upstream chemistry branches adjacent to the dominant battery-cell core
While H01M-class claims dominate, several upstream chemistry IPC classes show low patent-record counts relative to their technical relevance to binder performance—representing areas worth monitoring for entrants with a materials-science angle.
C08F · Addition polymers (vinyl, PVDF analogues)
C08F covers vinyl and addition polymer chemistry—the structural foundation of PVDF and its alternatives widely used as LFP electrode binders. With only 10 patent records in scope, this branch is sparsely populated relative to its centrality in binder performance. An organization with polymer synthesis capability could pursue claims at the monomer or copolymer level that sit upstream of cell-level H01M claims, potentially creating licensing leverage over cell manufacturers without directly competing in their primary claim space.
Search this in Eureka →B82Y · Nanotechnology applications in electrode binders
B82Y records (7 in scope) reflect work on nanoscale binder architectures—including nanocomposite and nanostructured binder systems that can improve ionic conductivity and mechanical adhesion in LFP electrodes simultaneously. UT Battelle and Jiangxi Anchi New Energy appear in this branch, but coverage remains thin. For a research institution or specialty materials firm, this branch offers a relatively open space where early patent positions could define a next-generation binder sub-category, though technical readiness and manufacturing scalability remain practical entry barriers to assess.
Search this in Eureka →How leading filers differ across technology routes
Route coverage across the main technology branches in the current evidence set.
| Player | H01M 4 · Batteries, cells & fuel cells | H01M 10 · Batteries, cells & fuel cells | C01B 25 · Non-metallic elements & inorganic compounds | B82Y 30 · Nanotechnology applications | C08F 220 · Addition polymers (vinyl etc.) |
|---|---|---|---|---|---|
| LG Energy Solution Ltd. | Strong · 44 | Strong · 33 | Emerging · 1 | Absent | Absent |
| Samsung SDI Co., Ltd. | Strong · 18 | Strong · 17 | Absent | Absent | Absent |
| BYD Co., Ltd. | Strong · 6 | Strong · 6 | Strong · 6 | Absent | Absent |
| Denka Co., Ltd. | Strong · 6 | Strong · 6 | Absent | Absent | Absent |
| Belenos Clean Power Holding | Strong · 5 | Strong · 3 | Absent | Absent | Absent |
| Indian Institute of Technology Roorkee | Strong · 4 | Strong · 4 | Absent | Absent | Absent |
| UT-Battelle LLC | Strong · 4 | Strong · 3 | Absent | Moderate · 1 | Absent |
Frequently asked questions
The evidence set covers 136 patent families in scope for this topic globally.
LG Energy Solution holds the top position with 44 patent records, more than twice the count of the second-ranked filer, Samsung SDI, which holds 18 patent records.
Europe (EPO) leads with 54 records, followed by China at 44 and the United States at 42. India is a notable fourth at 18 records, reflecting academic and domestic industry activity.
The field is assessed as Growth stage. The most recent three-year filing window is 196% above the prior three-year window. Annual volume peaked in 2022 and has moderated since, with recent years further understated by publication lag.
Yes. C08F (addition polymers, 10 records), B82Y (nanotechnology applications, 7 records), C09J (adhesives, 6 records), and C08G (condensation polymers, 4 records) each represent a low share of the patent-record total relative to their technical relevance to binder design. These are observations of sparsity rather than confirmed commercial opportunities.
IIT Roorkee (4 records) and Korea Advanced Institute of Science and Technology (3 records) are the most active academic filers in the ranking. The only identified co-filing collaboration of note is between Wanxiang Group and Wanxiang 123 Co. (3 jointly filed records), which is an intra-group relationship. Cross-sector or university–industry co-filing is limited in the current evidence.
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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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