LFP Current Collector Patent Landscape 2026
The LFP current collector space is in a growth stage, with filing activity expanding over the multi-year window and led by a handful of large battery manufacturers and materials specialists. LG Energy Solution holds the strongest individual position, while Chinese filers dominate the jurisdictional footprint.
LG Energy Solution leads a moderately concentrated field
LG Energy Solution ranks first with 15 patent records, ahead of Contemporary Amperex Technology (CATL) at 9 and Shandong Haiba Battery at 6, establishing a clear first tier among the top applicants.
The top five filers account for 22% of the hundred largest filers’ combined total, indicating moderate concentration: no single player holds an overwhelming share, but the gap between the first-tier incumbents and the mid-tier is meaningful.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | LG Energy Solution, Ltd. | 15 | |
| 2 | Contemporary Amperex Technology Co., Ltd. (CATL) | 9 | |
| 3 | Shandong Haiba Battery Co., Ltd. | 6 | |
| 4 | Panasonic Energy Co., Ltd. | 4 | |
| 5 | Tianjin University | 4 | |
| 6 | Samsung SDI Co., Ltd. | 4 | |
| 7 | Zhuhai CosMX Battery Co., Ltd. | 4 | |
| 8 | Zhuhai CosMX Power Battery Co., Ltd. | 3 | |
| 9 | Contemporary Amperex Technology (Hong Kong) Limited | 3 | |
| 10 | Semicon Energy Lab Co., Ltd. | 3 |
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 11 | GM Global Technology Operations LLC | 3 | |
| 12 | Zhengzhou University | 2 | |
| 13 | Yangzhou Nanopore Innovative Materials Technology Co., Ltd. | 2 | |
| 14 | Gree Altairnano New Energy Inc. | 2 | |
| 15 | Hebei Litao Battery Material | 2 | |
| 16 | Jiangsu Dingsheng New Material Joint Stock Co., Ltd. | 2 | |
| 17 | Shenzhen Suoyang New Energy Technology Co., Ltd. | 2 | |
| 18 | Jiangyin Nanopore Innovative Materials Technology Co., Ltd. | 2 | |
| 19 | Fujitsu Limited | 2 | |
| 20 | Wanxiang A123 Co., Ltd. | 2 |
The leading positions of LG Energy Solution and CATL — both integrated cell manufacturers — suggest that current-collector innovation is being driven primarily by cell makers seeking performance differentiation, rather than by dedicated materials suppliers alone.
Filing counts for 2025–2026 are understated due to publication lag and should not be read as a slowdown; the corpus covers global filings captured through the evidence date. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Rising filing volume with overwhelmingly battery-centric technology mix
Annual filings have grown 36% over the recent window, with H01M (batteries, cells and fuel cells) accounting for the vast majority of classified records. A small but distinct tail of adjacent technology classes signals early-stage diversification.
Annual filing trend
Filings climbed from 6 records in 2017 to a visible spike at 16 in 2022, moderated to the 13–15 range in 2023–2024, then reached 22 in 2025. The 2025 and 2026 figures are incomplete due to publication lag and will revise upward.
↗ Hover for values · click a bar to ask EurekaTechnology composition
H01M dominates the branch mix with 179 patent records, reflecting the core electrochemical cell focus. C01B (non-metallic elements and inorganic compounds) and B82Y (nanotechnology applications) each hold a small share, pointing to early-stage work on advanced collector materials and nano-structured coatings.
↗ 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 iron phosphate (LFP) cathode active materi…
The embodiments herein provide lithium iron phosphate (LFP) cathode active materials and a method for deposition of the LFP active materials on an aluminum-foil current collector for lithium-ion (Li-ion) batteries. The embodiments herein utilize an aqueous based LFP precursor slurry made using combustion chemistry, where the LFP precursor slurry is composed… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | 锂离子二次电池 | 73 |
| 2 | 一种高容量磷酸铁锂动力电池及其制作工艺 | 45 |
| 3 | 一种抑制锂枝晶的铜锌合金集流体 | 40 |
| 4 | 一种含有导电涂层的锂离子电池正极片及其制备方法 | 37 |
| 5 | 一种磷酸铁锂锂离子电池片及其加工方法 | 29 |
| 6 | 一种磷酸铁锂铝壳8安时圆柱电池及其制作工艺 | 29 |
| 7 | 一种快充快放型高功率锂离子电池及制作方法 | 27 |
| 8 | 软包装高功率磷酸铁锂动力电池 | 27 |
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 field’s growth trajectory, moderate concentration, and. China-centric geography create distinct strategic implications for both incumbents and new entrants. Key dimensions are maturity, concentration, collaboration, and jurisdiction.
Growth stage — multi-year expansion still underway
The lifecycle evidence classifies this as a Growth-stage field, with annual filing activity still rising and the most recent years understated by publication lag. The 36% recent-window growth rate confirms that technology differentiation in LFP current collectors is actively intensifying, making early positioning in sub-routes particularly valuable before the field matures.
Growth stageModerate — top five hold 22% of the largest filers’ total
The top five filers account for 22% of the hundred largest filers’ combined patent records, indicating that the field is not yet locked up by any dominant coalition. A sizeable mid-tier — including Panasonic Energy, Samsung SDI, Tianjin University, and Zhuhai CosMX — means that challengers with differentiated material or process approaches can still achieve visibility. The tier gap between rank 1 (15 records) and rank 3 (6 records) is material but not prohibitive.
Moderate concentrationMinimal co-filing — largely proprietary development
Only one co-applicant pair is evidenced in the data: Sanyo Electric and Sanyo Denki filed jointly on a single record. This near-absence of cross-entity collaboration suggests that LFP current collector R&D is conducted predominantly within single organisations, limiting open-innovation signals. Entrants seeking partnership opportunities will find few established co-development blueprints to model.
Low collaborationChina-dominant jurisdiction with meaningful US and EPO presence
China accounts for 118 patent records at the jurisdictional level, far ahead of the United States at 31 and Europe (EPO) at 11. Japan and South Korea together contribute 11 records. This concentration means that freedom-to-operate analysis in China is essential for any commercialisation strategy, while the comparatively lighter EPO and US coverage indicates potential room for building a stronger Western patent position.
China-dominantGo 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 |
|---|---|---|
| Sanyo Electric Co., Ltd. | Sanyo Denki Co., Ltd. | 1 |
Co-filing pairs, ranked by the number of jointly-filed patent families.
LG Energy Solution leads; CATL and new entrants are accelerating
The top two positions are held by established cell manufacturers with broad H01M 4 and H01M 10 portfolios. Three applicants entered the top tier only in the recent filing window, indicating that the competitive set is still forming.
LG Energy Solution
LG Energy Solution holds 15 patent records, the largest count among all applicants. Its technology emphasis is concentrated in H01M 4 (electrode structures) and H01M 10 (secondary cells), consistent with an integrated cell manufacturer optimising collector design for cell-level performance. The entity appears in the applicant momentum data as a new entrant in the most recent filing window, suggesting that its position is actively being built rather than inherited.
patent records: 15Contemporary Amperex Technology (CATL)
CATL ranks second with 9 patent records, with its technology focus spanning H01M 4, H01M 10, and a notable extension into C07C (acyclic and carbocyclic compounds), suggesting exploration of organic binder or coating chemistry alongside conventional electrode work. Its Hong Kong subsidiary holds an additional 3 patent records, so the consolidated CATL group presence is larger than the standalone ranking implies.
patent records: 9| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| LG Energy Solution, Ltd. | 5 | ▲ new entrant |
| Zhuhai CosMX Battery Co., Ltd. | 3 | ▲ new entrant |
| GM Global Technology Operations LLC | 3 | ▲ new entrant |
Under-served adjacent branches worth watching
Outside the dominant H01M core, several IPC branches show sparse coverage relative to their technical relevance to LFP current collector performance. These are observations of relative sparsity rather than validated commercial opportunities.
C01B · Non-metallic elements and inorganic compounds
Only 6 patent records are classified under C01B, representing 3% of the branch-level total. This branch covers phosphate chemistry and carbon-based materials — both directly relevant to LFP cathode and collector interface engineering. The low count suggests that foundational inorganic material work for collector surfaces is an under-documented area; an entrant with a phosphate-derived or graphene-based coating approach could build a relatively uncrowded position here.
Search this in Eureka →B82Y · Nanotechnology applications
B82Y holds 5 patent records (2% of the branch-level total), reflecting limited formal classification of nano-structured current collector work despite broad academic interest in carbon nanotube and nanoparticle-enhanced collectors. Given CATL’s adjacent activity in organic compounds and the general industry push toward thinner, lighter collectors, this branch represents a plausible but still early-stage entry path for materials specialists with nano-fabrication capability.
Search this in Eureka →How leaders differ by technology route
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 | H01M 50 · Batteries, cells & fuel cells | H01M 2 · Batteries, cells & fuel cells | C01B 25 · Non-metallic elements & inorganic compounds |
|---|---|---|---|---|---|
| Shandong Haiba Battery Co., Ltd. | Strong · 6 | Strong · 6 | Strong · 5 | Strong · 5 | Absent |
| LG Chem, Ltd. | Strong · 10 | Strong · 6 | Absent | Absent | Emerging · 2 |
| Contemporary Amperex Technology Co., Ltd. (CATL) | Strong · 11 | Strong · 6 | Absent | Absent | Absent |
| Sanyo Electric Co., Ltd. | Strong · 7 | Strong · 6 | Absent | Absent | Absent |
| LG Energy Solution, Ltd. | Strong · 6 | Strong · 5 | Absent | Absent | Absent |
| Samsung SDI Co., Ltd. | Strong · 4 | Strong · 4 | Absent | Absent | Absent |
| Zhuhai CosMX Battery Co., Ltd. | Strong · 4 | Strong · 3 | Absent | Absent | Absent |
Frequently asked questions
The corpus contains 117 patent families in scope, spanning filings from 2017 through 2026 across all major jurisdictions.
LG Energy Solution holds the top position with 15 patent records among the top 100 ranked applicants, ahead of CATL at 9 and Shandong Haiba Battery at 6.
Yes, the field is classified as Growth stage. Filing activity has grown 36% over the recent window. The 2025 and 2026 data points are understated due to publication lag and are expected to revise upward.
China leads with 118 patent records at the jurisdictional level, followed by the United States at 31 and Europe (EPO) at 11. A family can be filed in multiple jurisdictions, so these counts reflect coverage breadth rather than unique family totals.
C01B (non-metallic elements and inorganic compounds) has only 6 patent records and B82Y (nanotechnology applications) has 5 — both sparse relative to the dominant H01M core and plausibly relevant to advanced collector surface and nano-structured coating work.
Collaboration is minimal. Only one co-applicant pair is evidenced — Sanyo Electric and Sanyo Denki on a single jointly filed record — indicating that development in this field is overwhelmingly proprietary and single-entity driven.
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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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