Li-Ion Cathode/Anode Materials Patent Landscape 2026
The field has reached maturity, with annual filings plateaued near their 2022 peak and a moderately concentrated top tier dominated by Chinese battery makers and a small number of European materials specialists. Contemporary Amperex Technology leads on volume, while Umicore and BTR New Material anchor competing routes in metal-compound chemistry and carbon-based anodes respectively.
Contemporary Amperex leads a moderately concentrated field
Contemporary Amperex Technology (Hong Kong) Limited holds the top position with 121 patent families, ahead of Umicore (Belgium) and BTR New Material Group, each at 99 patent families. BYD and Shenzhen Capchem round out a closely bunched top tier.
The top five filers account for 20% of the combined total among the hundred largest filers — a level of concentration that signals no single player commands an overwhelming lock on the space, yet the gap between the top five and the next tier is meaningful enough to create structural advantages for incumbents.
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 1 | Contemporary Amperex Technology (Hong Kong) Limited | 121 | |
| 2 | Umicore (Belgium) | 99 | |
| 3 | BTR New Material Group Co., Ltd. | 99 | |
| 4 | Shenzhen Capchem Technology Co., Ltd. | 81 | |
| 5 | BYD Co., Ltd. | 79 | |
| 6 | Hydro-Québec | 74 | |
| 7 | SVOLT Energy Technology Co., Ltd. | 67 | |
| 8 | Ningde Amperex Technology Limited (ATL) | 66 | |
| 9 | Sila Nanotechnologies Inc. | 60 | |
| 10 | Zhuhai COSMX Battery Co., Ltd. | 58 |
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 11 | Robert Bosch GmbH | 54 | |
| 12 | French Alternative Energies and Atomic Energy Commission (CEA) | 51 | |
| 13 | GRST International Ltd. | 50 | |
| 14 | GM Global Technology Operations LLC | 50 | |
| 15 | A123 Systems LLC | 48 | |
| 16 | Beijing Easpring Material Technology Co., Ltd. | 46 | |
| 17 | Contemporary Amperex Technology Co., Ltd. (CATL) | 46 | |
| 18 | Regents of the University of California | 43 | |
| 19 | Techtronic Cordless GP | 38 | |
| 20 | Arkema France S.A. | 36 |
The leader mix — spanning Chinese cell manufacturers, a Belgian specialty-chemistry group, a Canadian public research institution (Hydro-Québec), and US-based startups such as Sila Nanotechnologies — indicates that electrode material innovation draws both vertically integrated battery producers and pure-play materials firms, implying competition on multiple axes simultaneously.
Filing counts for 2024–2026 are under-counted due to standard publication lag; apparent softness in those years should not be read as a reversal of the multi-year trend. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Activity plateaued around a 2022 surge; H01M dominates but metal-compound and nanotech classes are active adjacent branches
The filing trend chart shows a peak in 2022 followed by a moderation that reflects both market saturation signals and publication lag in the most recent years. The technology composition chart reveals strong concentration in battery-cell classes alongside a measurable secondary cluster in inorganic-chemistry and nanotechnology branches.
Annual filing trend
Filings climbed from 2020 lows to a clear 2022 peak, then eased. The 2024–2026 bars are subject to publication lag and should not be interpreted as a real decline; the multi-year window shows a net 24% growth versus the prior comparable period.
↗ Hover for values · click a bar to ask EurekaTechnology composition
H01M (Batteries, cells and fuel cells) dominates the branch mix by a large margin. C01G (Compounds of other metals) and C01B (Non-metallic elements and inorganic compounds) form a secondary cluster at roughly 7% share each, with B82Y (Nanotechnology applications) adding a third tier — indicating active material-synthesis and nano-structuring work alongside device-level claims.
↗ 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.
Electrolyte additive, electrolyte and lithium-ion …
An electrolyte additive, an electrolyte, and a lithium-ion battery, where the electrolyte additive has a structure shown in formula (I): <img src=” class="img-anchor sg-l" img-id="US20230420738A1-C00001"/> The electrolyte additive has both a film-forming property and the property of inhibiting the rise of acidity and chromaticity of the electrolyte… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Cathode materials for secondary (rechargeable) lit… | 1,119 |
| 2 | Cathode materials for secondary (rechargeable) lit… | 516 |
| 3 | Materials for solid state electrolytes and protect… | 399 |
| 4 | Cathode compositions for lithium-ion batteries | 374 |
| 5 | Cathode compositions for lithium-ion batteries | 292 |
| 6 | Data-driven Model for Lithium-ion Battery Capacity… | 199 |
| 7 | 2次(再充電)リチウム電池用陰極材料 | 189 |
| 8 | Cathode materials for secondary (rechargeable) lit… | 185 |
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 a mature lifecycle, moderate top-tier concentration, active co-filing partnerships, and broad global prosecution creates a landscape where incremental differentiation is harder to defend but targeted chemistry niches remain open.
Field has plateaued near its 2022 peak
The lifecycle stage is Maturity: annual filings have plateaued near their 2022 peak, even as the multi-year window shows positive growth of 24%. New entrants face a dense prior-art environment in core cathode and anode formulations. R&D investment is most defensible in differentiated sub-chemistries rather than incremental NMC or graphite variations.
Lifecycle: MaturityTop five hold 20% of the largest-filer pool, leaving room for challengers
The top five filers account for 20% of the combined output of the hundred largest filers — concentrated enough that incumbents have portfolio depth to assert in licensing, but dispersed enough that a focused challenger entering a specific chemistry class can establish a credible position. The second tier (Hydro-Québec at 74 families, SVOLT at 67, Sila Nanotechnologies at 60) shows active competition just below the leaders.
Moderate concentrationBTR–Dingyuan and Umicore-led consortia are the most active co-filers
The most active co-filing pair is BTR New Material Group with Dingyuan New Energy Technology at 35 joint families. Umicore (Belgium) anchors a broader network: it co-files with Lisenore Holdings (21 families), Umicore Korea (12 families), the French Alternative Energies and Atomic Energy Commission (10 families), and Saft Group (8 families). Sila Nanotechnologies co-files with Georgia Tech Research Corporation (9 families), linking a startup to academic IP. These clusters suggest that process scale-up and multi-jurisdictional prosecution are increasingly handled through partnerships.
Partnership-drivenUS leads prosecution; Europe, China and PCT follow closely
The United States is the primary prosecution jurisdiction, followed by Europe (EPO), China, and WIPO PCT. India, South Korea, Japan and Canada form a secondary ring of meaningful activity. The breadth of prosecution across four major IP systems indicates that leading filers treat this technology as globally strategic, raising the defensive portfolio cost for new entrants.
US-led, global spreadGo 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 |
|---|---|---|
| BTR New Material Group Co., Ltd. | Dingyuan New Energy Technology Co., Ltd. | 35 |
| Umicore (Belgium) | Lisenore Holdings Co., Ltd. | 21 |
| Umicore (Belgium) | Umicore Korea Ltd. | 12 |
| Umicore (Belgium) | French Alternative Energies and Atomic Energy Commission (CEA) | 10 |
| Sila Nanotechnologies Inc. | Georgia Tech Research Corporation | 9 |
| Umicore (Belgium) | Saft Group S.A. | 8 |
| BTR New Material Group Co., Ltd. | Huizhou BTR New Material Technology Co., Ltd. | 6 |
| Zhuhai COSMX Battery Co., Ltd. | Zhuhai Guanqi New Materials Co., Ltd. | 4 |
| Umicore (Belgium) | Union Mining Ltd. | 3 |
| BYD Co., Ltd. | Shenzhen Fang Cheng Bao Automotive Sales Co., Ltd. | 3 |
Co-filing pairs, ranked by the number of jointly-filed patent families.
Contemporary Amperex and Umicore lead on volume; BTR and Capchem show the sharpest upward momentum
The top players split broadly into vertically integrated Chinese battery makers and specialty materials firms. Trajectory diverges significantly within the top ranks, with some incumbents declining and challengers accelerating rapidly.
Contemporary Amperex Technology (Hong Kong) Limited
Leads the ranking at 121 patent families, concentrated in H01M 10 (cell-level battery systems) and H01M 4 (electrode materials). Recent-period momentum shows a 36% decline versus the prior three years, suggesting the entity is consolidating rather than expanding its filing rate — possibly reflecting portfolio pruning or a shift of filings to the parent entity, Contemporary Amperex Technology Co., Ltd.
121 patent familiesBTR New Material Group Co., Ltd.
Tied at 99 patent families with Umicore but growing sharply at +114% in recent filings versus the prior period, making it the fastest-rising large filer in the ranking. Its technical focus sits in H01M 4 (electrode materials) and C01B 32 (carbon and inorganic non-metallic compounds), reflecting its core position in graphite and silicon-carbon anode materials. The BTR–Dingyuan co-filing partnership (35 joint families) adds further downstream coverage.
99 patent families| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| Contemporary Amperex Technology Co., Ltd. (CATL) | 47 | ▼ -36% |
| BTR New Material Group Co., Ltd. | 47 | ▲ +114% |
| Umicore (Belgium) | 10 | ▼ -23% |
| Shenzhen Capchem Technology Co., Ltd. | 39 | ▲ 3.3× vs prior 3-yr |
| BYD Co., Ltd. | 24 | ▬ 0% |
| SVOLT Energy Technology Co., Ltd. | 35 | ▲ +30% |
| Ningde Amperex Technology Limited (ATL) | 19 | ▲ +6% |
| Zhuhai COSMX Battery Co., Ltd. | 31 | ▲ +158% |
Under-served routes in metal-compound chemistry, nanotechnology, and capacitor integration
The branches below represent classes with materially lower filing density relative to the dominant H01M core. They are observations of relative sparsity; only those with plausible technical value and a realistic entry path are flagged as worth watching.
B82Y · Nanotechnology applications in electrode materials
B82Y covers nano-scale engineering of cathode and anode particles — silicon nanowires, nano-coatings, and carbon nanotube composites — that can directly address the capacity-fade and volumetric-expansion problems limiting next-generation anodes. At roughly 3% of the branch mix, the class is sparse relative to its technical relevance. Entrants with capabilities in nano-synthesis or surface-engineering can build differentiated positions here before the space densifies, particularly for silicon-dominant anode architectures.
Search this in Eureka →H01G · Capacitor-battery hybrid electrode architectures
H01G (Capacitors) appears at roughly 2% of the branch mix, signalling limited but non-trivial activity at the interface of supercapacitor and lithium-ion electrode design — a space relevant to high-power applications such as regenerative braking and fast-charge buffers. The patent density here is low enough that a focused effort on hybrid electrode structures or lithium-ion capacitor (LIC) chemistries could establish a defensible cluster without competing directly against the dominant H01M incumbents.
Search this in Eureka →How leaders differ by technology route across electrode chemistry classes
Route coverage across the main technology branches in the current evidence set.
| Player | H01M 10 · Batteries, cells & fuel cells | H01M 4 · Batteries, cells & fuel cells | H01M 50 · Batteries, cells & fuel cells | C01G 53 · Compounds of other metals | H01M 2 · Batteries, cells & fuel cells |
|---|---|---|---|---|---|
| Contemporary Amperex Technology Co., Ltd. (CATL) | Strong · 136 | Strong · 122 | Emerging · 14 | Emerging · 13 | Absent |
| BTR New Material Group Co., Ltd. | Strong · 81 | Strong · 104 | Absent | Absent | Absent |
| Umicore (Belgium) | Strong · 61 | Strong · 91 | Absent | Moderate · 22 | Absent |
| BYD Co., Ltd. | Strong · 72 | Strong · 59 | Emerging · 9 | Absent | Absent |
| Sila Nanotechnologies Inc. | Strong · 57 | Strong · 55 | Absent | Absent | Emerging · 5 |
| Zhuhai COSMX Battery Co., Ltd. | Strong · 58 | Strong · 44 | Moderate · 13 | Absent | Absent |
| Ningde Amperex Technology Limited (ATL) | Strong · 55 | Strong · 51 | Absent | Absent | Absent |
Frequently asked questions
The analysis covers 2,436 patent families in the Li-ion cathode and anode materials space across the period shown.
Contemporary Amperex Technology (Hong Kong) Limited leads with 121 patent families, ahead of Umicore (Belgium) and BTR New Material Group, each at 99 patent families.
The field is at the Maturity stage. Annual filings peaked in 2022 and have since plateaued. The multi-year window still shows positive growth of 24%, but the rate of new-entrant disruption is lower than in earlier growth phases.
The United States is the primary prosecution jurisdiction, followed by Europe (EPO) and China. WIPO PCT filings indicate that many applicants are pursuing broad international coverage from the outset.
BTR New Material Group shows +114% growth in recent filings versus the prior period. Zhuhai COSMX Battery is up +158%, and Shenzhen Capchem Technology has grown 3.3× versus its prior three-year baseline — albeit from a smaller starting base. These are the sharpest upward momentum signals among large filers.
The most active co-filing pair is BTR New Material Group with Dingyuan New Energy Technology at 35 joint families. Umicore (Belgium) is the most networked co-filer, partnering with Lisenore Holdings (21 families), Umicore Korea (12 families), the French Alternative Energies and Atomic Energy Commission (10 families), and Saft Group (8 families).
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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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