LMO Battery Anode Patents: Leaders, Trends & White Space 2026
- Filing activity is flat, not growing. the trend runs from zero in 2017 to a peak of just 4 families in 2024, with no assignee showing recent-year momentum above zero.
- The corpus is small and cathode-adjacent. 56 families total, and the IPC mix (56 H01M against 21 C01G) shows most claims sit on compound chemistry rather than anode-specific structure.
- Citations concentrate on decades-old art. the most-cited records date back to the 1990s and 2000s, meaning newer filings are building on long-settled compound and cell claims.
A small, mature filing pool built on old foundations
Lithium manganese oxide (LMO, LiMn2O4) sits at an odd junction in the anode material literature: the search terms pull records that are formally about LMO as a cathode compound but claim it, cite it, or pair it with graphite and lithium titanate anode structures. That overlap is visible in the technology composition, where the H01M battery-cell subclass covers every record but the C01G metal-compound subclass still touches over a third of the corpus. The dataset is modest at 56 families, and the filing trend does not show a clear upward slope.
Publication lags filing by roughly 18 months, so the most recent year understates real activity. Even allowing for that lag, the run from 2017 through the 2024 peak of 4 families a year describes a field with occasional bursts of interest rather than sustained investment.
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Filing trend and technology composition
Two views of the same 56-family dataset: how filing activity has moved year over year, and where those filings sit across the IPC classification system.
A flat trend with one modest peak
Filings run from 0 in 2017 to a peak of 4 in 2024, with the 2022 midpoint at just 2 families. That pattern reads as flat-to-declining rather than growing, and no single assignee shows momentum in the most recent year.
Concentrated in battery cells, with a compound-chemistry tail
All 56 records classify under H01M (batteries, cells & fuel cells). A meaningful secondary cluster of 21 sits in C01G (compounds of other metals), with single-digit counts scattered across alkali-metal compounds, nanotechnology, coating processes, and EV propulsion — evidence that most inventive effort is still spent on the core compound and cell architecture rather than on adjacent processing or application claims.
Shares are the percentage of the 56 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Lithium Manganese Oxide Battery Anode Material with Eureka
This page is one run against one query. Ask Eureka your own question about lithium manganese oxide battery anode material and every answer comes back with the patent numbers behind it.
Try EurekaThe prior art doing the most work
Method for surface treatment of lithium manganese oxide for positive electrode in lithium secondary battery
Filed by Korea Advanced Institute of Science and Technology, this record discloses coating the surface of lithium manganese oxide with lithium transition metal oxides to address high-temperature lifetime loss and discharge efficiency, while offering a cheaper alternative to lithium cobalt oxide.US20010031311A1 · published 2001-10-18
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20060093914A1 | Positive active material and nonaqueous electrolyte secondary battery | 34 |
| 2 | US20070092798A1 | Lithium ion batteries | 29 |
| 3 | US5605773A | Lithium manganese oxide compound and method of preparation | 28 |
| 4 | US6551746B1 | Rechargeable electrochemical cell of lithium ion or lithium alloy-type possessing metal oxide modified cathod… | 26 |
| 5 | CN1282113A | 锂离子电池正极材料及其制备方法 | 24 |
| 6 | US20010031311A1 | Method for surface treatment of lithium manganese oxide for positive electrode in lithium secondary battery | 23 |
| 7 | US20120045690A1 | High manganese polycrystalline anode material, preparation method thereof and dynamic lithium ion battery | 22 |
| 8 | US5763120A | Lithium manganese oxide cathodes with high capacity and stability | 21 |
| 9 | US5639438A | Lithium manganese oxide compound and method of preparation | 18 |
| 10 | GB2245264A | Lithium manganese oxide | 17 |
Citation counts inside a searched corpus favour older records; treat this as a signal of influence on later filings, not of current commercial relevance.
Patent titles are shown in the language they were filed in, not translated, so that each record stays verifiable against the original filing — a translated title will not match in Eureka or in any national register. Each row carries its publication number; clicking a row searches Eureka by that number.
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Browse MCP servers →What the filing pattern actually tells you
Three things stand out once the raw counts are set against each other: where the citations sit, how thin the recent activity is, and how narrow the receiving-office spread is.
Foundational compound claims still anchor the field
The most-cited record in the set, US5605773A on lithium manganese oxide compound preparation, dates to the mid-1990s, and the next tier of highly-cited records runs through the mid-2000s. New filings are working around, not past, this layer of composition and preparation art.
No assignee is currently pushing volume
Every assignee tracked for recent-year momentum, including established filers, shows zero filings in the latest year. Combined with a 2024 peak of only 4 families, this points to a technology area that individual organisations dip into rather than commit to.
Filing activity is US-led with a thin international tail
The United States accounts for 22 of the tracked records, roughly double the next tier of Europe (EPO), China and the United Kingdom. That concentration means design-around and freedom-to-operate work should start with US prosecution history before extending to the smaller regional pools.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to lithium manganese oxide battery anode material, with the prior art for and against each one.
A dispersed field with almost no repeat collaboration
With only 3 co-assignee pairs across 56 families, most of this work is filed solo. No single organisation shows filing momentum in the most recent tracked year, which is consistent with a technology area that gets episodic attention rather than a standing research programme.
Co-filing is rare
The strongest pairing appears twice; the rest are single instances. That low density suggests most assignees in this space are pursuing LMO anode-adjacent work independently rather than through joint development agreements.
No current filer is scaling up
Every assignee named in the recent-momentum tracking, spanning battery makers, chemical firms and a national atomic energy authority, shows zero filings in the latest tracked year. Treat any of them as a historical rather than an active competitive threat in this specific claim space.
A small enough pool to review in full
At 56 families, this is not a crowded landscape. A freedom-to-operate review can realistically cover the entire assignee set rather than sampling the top tier, which is unusual for a battery-materials search.
| Assignee | Recent year | YoY |
|---|---|---|
| Altair Nanotechnologies | 0 | — |
| Kerr-McGee Chemical Corporation | 0 | — |
| Sony Group Corporation | 0 | — |
| Xinqiangneng Battery Co. | 0 | — |
| Technology Finance Corporation (Ownership) Limited | 0 | — |
| United Kingdom Atomic Energy Authority | 0 | — |
| Indian Oil Corporation | 0 | — |
| SPITLER TIMOTHY M | 0 | — |
Where to take this analysis
The dataset points to specific follow-up work rather than a single conclusion.
Check US prosecution history first
With 22 of 56 records in the US receiving office, freedom-to-operate and design-around review should start there before extending to the EPO, China or UK pools.
Explore assignee filings in EurekaRe-run the search on renewal
Because publication lags filing by about 18 months, the 2024-2026 window should be re-checked periodically as later filings surface.
Set up a tracked search in EurekaMap the coating and composite claims
The C01G, B82Y and B05D overlaps mark thinner claim territory than the core H01M cluster and are worth a dedicated claim chart.
Build a claim chart in EurekaCommon questions on LMO anode material patents
This dataset tracks 56 patent families published between 2015 and mid-2026 that combine lithium manganese oxide claim language with graphite, lithium titanate or high-rate anode terminology under the relevant H01M IPC subclasses. That is a small corpus by battery-materials standards, and it has not shown sustained year-over-year growth, peaking at only 4 families in 2024. Anyone scoping a search should expect a reviewable, not sprawling, set of prior art here.
Lithium manganese oxide is fundamentally a cathode-active material, but many of the records in this set claim it in combination with anode structures such as graphite or lithium titanate, or describe surface treatments that affect whole-cell performance. That is why the IPC composition shows heavy overlap between H01M (batteries and cells) and C01G (compounds of other metals): the inventive step often sits at the compound level even when the claim language addresses anode-side behaviour. Readers should treat 'LMO anode material' searches as inherently cross-electrode rather than anode-only.
The assignee set includes battery manufacturers, specialty chemical firms and at least one national research authority, but none of them show filing activity in the most recent tracked year. Co-assignee collaboration is also rare, with only 3 co-filing pairs identified across the full 56-family set. That combination suggests this is a technology area where organisations file opportunistically rather than maintain a standing filing programme.
US20010031311A1, filed by Korea Advanced Institute of Science and Technology, covers a method for surface-treating lithium manganese oxide by coating it with lithium transition metal oxides to improve high-temperature lifetime and discharge efficiency. It sits within the older, heavily-cited layer of compound-preparation art in this field alongside records like US5605773A. Anyone developing a coated-LMO product should review its specific coating-method claims before assuming a novel formulation clears it, since surface-treatment claims of this vintage tend to be broadly drafted.
The IPC composition shows thin coverage in coating-process claims (B05D), nanostructured composite claims (B82Y) and lithium titanate pairing relative to the dense core H01M cluster of 56 records. These branches have single-digit or low-double-digit representation, meaning a well-drafted claim on a specific coating process or composite structure has more room to establish novelty than a claim on the base LMO compound itself. Given the overall flat filing trend, this white space has been open for some time rather than recently vacated.
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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.
Machine translation. Assignee and organisation names originally recorded in Chinese, Japanese or Korean have been rendered into English by an AI translation step so that the tables stay readable. These renderings are best-effort and may not match a company’s registered English name; the original name is what the underlying patent record carries, and it is what any Eureka query launched from this page uses.