NMC Battery Fast Charging Patents: Who Leads, Trends 2026
- Small, concentrated field. just 15 patent families sit at the intersection of NMC cathode chemistry and fast-charging control, with filings peaking in 2018 and no single assignee filing repeatedly.
- Cross-border filing is thin. receiving offices split across the United States, India and Canada, suggesting most filers are protecting a home market rather than building global coverage.
- Cathode layering is the newest move. the most recent representative filing claims a two-layer NMC electrode architecture rather than a charging-protocol tweak, hinting the frontier has shifted toward electrode design.
A narrow, technically specific niche inside battery patenting
NMC battery fast charging sits at the crossroads of cathode chemistry and charge-control electronics, and the patent record reflects that: H01M battery and cell classifications dominate at 12 of the tagged records, while vehicle propulsion classes (B60L, B60K) and power-supply classes (H02J) each carry a handful of filings that treat the same chemistry from a systems angle. This is not a crowded field by raw count — 15 patent families in total — but the classification spread across eight IPC subclasses shows the problem is worked from several directions: electrode composition, thermal and electrical control, and measurement of charge state all show up as filing targets.
Because publication typically lags filing by around 18 months, the apparent falloff after the 2018 peak understates real recent activity; 2025 and 2026 filings are still arriving. The dataset should be read as an early, technically dense signal rather than a mature, saturated one.
Filing trend and technology composition
Two views of the same 15-family dataset: how filing activity has moved year over year, and which IPC subclasses carry the claims.
Filing trend, 2017-2026
Filings ran a single record in 2017, jumped to a peak of 5 in 2018, then went quiet through the 2022 midpoint before a late, still-partial uptick toward 2026 — consistent with a field that saw one wave of early interest and is now re-accelerating rather than steadily maturing.
IPC subclass distribution
H01M (batteries, cells & fuel cells) anchors the field with 12 of the tagged records; B60L and B60K show the EV-propulsion angle on the same chemistry, while H02J, G01R, G05F, G06F and G06Q each contribute a small systems-or-software layer around measurement and control.
Shares are the percentage of the 15 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on NMC Battery Fast Charging with Eureka
This page is one run against one query. Ask Eureka your own question about nmc battery fast charging and every answer comes back with the patent numbers behind it.
Try EurekaThe most-cited records and the newest filing
US20250192147A1 — Layered cathode
A battery electrode for solid-state battery cells and a method for its fabrication are provided. The electrode comprises two layers, an ion transport layer comprising a homogeneous mixture of lithium argyrodite and lithium ceramic coated nickel manganese cobalt oxide particles, and an electron transport layer with uncoated nickel manganese cobalt oxide particles. The electron transport layer may include lithium argyrodite particles in a specific ratio and may be sulfide-based.Filed by Ford Global Technologies, LLC, published 2025-06-12 — the most recent record in this dataset.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20190036171A1 | Novel battery systems based on two-additive electrolyte systems | 19 |
| 2 | US20190280334A1 | Novel battery systems based on two-additive electrolyte systems including 1,2,6-oxodithiane-2,2,6,6-tetraoxide | 12 |
| 3 | US20210175547A1 | Novel battery systems based on two-additive electrolyte system | 3 |
Citation counts favour older records simply because they have had more time to be cited; treat them as a signal of influence within this corpus, not a ranking of current commercial relevance.
Publication numbers are shown where the record carries one (3 of 3 rows); clicking a row searches Eureka by that number.
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One early wave, then a long quiet stretch
Filings peaked at 5 in 2018 and fell to zero by the 2022 midpoint before picking back up. That shape looks less like steady technology maturation and more like a burst of early interest followed by a gap that recent filings are now filling in.
The chemistry problem is being worked from several angles
H01M carries the bulk of records, but B60L, B60K, H02J, G01R, G05F, G06F and G06Q each appear at least once, showing that fast-charging claims are being filed as much around control and measurement systems as around the cathode material itself.
Filing is concentrated in three offices, not global
With only three receiving offices represented across 15 families, most applicants appear to be protecting a single home market rather than building broad multi-jurisdiction coverage — a gap a well-resourced filer could exploit.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to nmc battery fast charging, with the prior art for and against each one.
Who is filing, and where the field is thin
No assignee in this dataset files repeatedly; the strongest co-assignee link appears once, and recent-year momentum is essentially flat or negative across the named organisations.
Ford Global Technologies, LLC
Holds the most recent representative filing in the dataset, a layered-cathode solid-state architecture, but shows no filings in the latest tracked year, consistent with a single strategic filing rather than a sustained programme.
Tesla, Inc. and Panasonic Corporation (Panasonic)
The strongest co-assignee pair in the dataset links Tesla and Panasonic on a single shared filing, and both show zero activity in the latest year — a joint filing rather than an ongoing joint programme.
SAVEETHA ENG COLLEGE
The only named organisation in this dataset with a positive filing count in the most recent tracked year, suggesting academic groups are still actively entering this space even as commercial filers appear to have paused.
| Assignee | Recent year | YoY |
|---|---|---|
| SAVEETHA ENG COLLEGE | 1 | — |
| Tesla Motors Canada ULC | 0 | — |
| Tesla, Inc. | 0 | -100% |
| NAT INST OF TECH GOA | 0 | -100% |
| Ford Global Technologies, LLC | 0 | — |
| Panasonic Corporation | 0 | — |
| SURIYA | 0 | — |
| SATHISH | 0 | — |
Where to take this analysis
This dataset is small enough that a manual review of all 15 families is practical before committing search or filing budget.
Run a freedom-to-operate check on layered-cathode claims
US20250192147A1's two-layer ion-transport/electron-transport architecture is the newest claim shape in this dataset; check it against any solid-state NMC electrode work before filing nearby.
Explore in EurekaWatch for the 2025-2026 filing catch-up
Publication lag means the apparent 2022-2024 quiet period is likely partly artefact. Re-run this landscape in six months to see whether the late uptick continues.
Explore in EurekaMap the control-systems side separately
B60L, H02J, G01R and G05F filings treat fast charging as a measurement-and-control problem rather than a chemistry problem; a separate landscape scoped to those subclasses may surface different assignees.
Explore in EurekaCommon questions about NMC fast-charging patents
This dataset identifies 15 patent families published between 2015 and mid-2026 that combine NMC cathode chemistry with fast-charging or lithium-plating-suppression claims, based on a targeted search across title, abstract, claims and description text. That is a small, technically specific field rather than a broad one. Because publication lags filing by roughly 18 months, the true count of filed-but-unpublished applications for 2025-2026 is almost certainly higher than what currently appears.
No single assignee dominates this dataset; the most-cited records centre on two-additive electrolyte systems, and the most recent representative filing belongs to Ford Global Technologies, LLC on a layered solid-state cathode. Tesla and Panasonic appear together on the dataset's strongest co-assignee link, and an academic group, Saveetha Engineering College, is the only organisation with a filing in the latest tracked year. This is a fragmented ownership picture, not a concentrated one.
Lithium plating is the deposition of metallic lithium on the anode surface that occurs when charging current outpaces the rate at which lithium ions can intercalate, and it degrades capacity and can create safety risks. Because it is the primary physical limit on how fast an NMC cell can be charged without damage, claims addressing detection or suppression of plating sit at the technical core of this patent set. Several records in this dataset target charging-protocol or measurement approaches specifically aimed at this failure mode.
Based on the IPC spread in this dataset, subclasses like G06F and G06Q appear only once or twice, meaning software-driven charge-protocol optimisation and AI-assisted charging decisions are lightly claimed relative to the core electrochemistry. Solid-state NMC/sulfide cathode interfaces, as seen in the most recent representative filing, also appear to be an early and thinly claimed branch. A first claim in these areas would need to tie specific sensor or control-loop steps to a measurable plating or thermal outcome to stand apart from the existing electrolyte-additive art.
Not necessarily. Citation counts accumulate over time within a searched corpus, so older records such as the two-additive electrolyte-system patents in this dataset naturally show higher citation totals simply because they have existed longer and had more opportunity to be cited. Treat citation count as a measure of historical influence on later filings, not as a live indicator of commercial relevance or enforceability today. A newer, uncited filing like the 2025 layered-cathode record can still be more relevant to current freedom-to-operate work.
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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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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.