Manganese-Rich Battery Fast Charging Patent Landscape 2026
Manganese-Rich Battery Fast Charging Patent Landscape in 2026
LG Energy Solution holds a commanding lead in manganese-rich battery fast charging, accounting for a dominant share of the 79 patent families in scope, with the field expanding sharply on a multi-year basis from a near-zero base. Activity is concentrated in cell and electrode technology under H01M, with China leading in filing volume, signaling a field that is growing but still tightly held.
LG Energy Solution leads a highly concentrated, fast-growing field
LG Energy Solution ranks first among all filers in manganese-rich battery fast charging, holding 45 patent families — a position that places it in a tier entirely separate from all other applicants. The next-ranked filers each hold 3 or fewer patent families, producing an acute two-tier competitive structure.
The top five filers collectively account for 65% of the combined total across the hundred largest filers — an unusually high concentration for an emerging battery sub-field. This gap implies that a single commercial entity has built a structural IP position while the broader field is still forming.
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 1 | LG Energy Solution Ltd. | 45 | |
| 2 | NINGBO INST OF MATERIALS TECH & ENG CHINESE ACAD O… | 3 | |
| 3 | Beijing Chuangneng Huitong Technology Co., Ltd. | 3 | |
| 4 | GRIMAT New Energy Materials (Jiangxi) Co., Ltd. | 2 | |
| 5 | Tianjin Guoan MGL New Materials Technology Co., Ltd. | 2 | |
| 6 | Beijing Welion New Energy Technology Co., Ltd. | 2 | |
| 7 | Dalian Institute of Chemical Physics, Chinese Academy of Sciences | 1 | |
| 8 | EVE Energy Co., Ltd. | 1 | |
| 9 | Shanghai Xuanyi New Energy Development Co., Ltd. | 1 | |
| 10 | Farasis Technology (Ganzhou) Co., Ltd. | 1 |
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 11 | EVE Power Co., Ltd. | 1 | |
| 12 | Xiamen Xinshu Energy Power Technology Co., Ltd. | 1 | |
| 13 | Zhejiang Intelligent Transportation Technology Innovation Center | 1 | |
| 14 | Shanghai Institute of Space Power Sources | 1 | |
| 15 | China Automotive Battery Research Institute Co., Ltd. | 1 | |
| 16 | Tianfu Jiangxi Laboratory | 1 | |
| 17 | Central South University | 1 | |
| 18 | Inner Mongolia University of Technology | 1 | |
| 19 | Tianjin Juyuan New Energy Technology Co., Ltd. | 1 | |
| 20 | POSCO Holdings Inc. | 1 |
LG Energy Solution’s volume and recency of filings suggests the company is actively locking in claim scope around formation protocols, electrode chemistry, and cell-level fast-charge management. Challengers entering now face a dense incumbent block in the core H01M space and will need to differentiate by route or chemistry variant.
Filing counts for the most recent 18–24 months are understated due to standard patent publication lag; apparent softening in 2024–2026 data does not reflect actual activity levels. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
A sharp multi-year surge dominated by cell-level battery IP
The filing trend reveals an 880% jump in the recent three-year window relative to the prior three-year window, driven primarily by LG Energy Solution’s entry. The technology composition is overwhelmingly centred on H01M (batteries, cells, and fuel cells), with a small tail of adjacent branches.
Annual filing trend
Filings were negligible through 2021, then accelerated sharply from 2022 onward, peaking at 26 filings in 2023 before easing. The field is still expanding on a multi-year basis given the 880% recent-window growth, though annual volume has eased from its 2023 peak. Data for 2024–2026 is further suppressed by publication lag and should not be read as a real decline.
↗ Hover for values · click a bar to ask EurekaTechnology composition
H01M (batteries, cells, and fuel cells) accounts for the overwhelming majority of classified records, confirming that fast-charge innovation in this space is concentrated at the cell and electrode level. C01G (compounds of other metals, relevant to cathode precursor chemistry) is the only adjacent branch with more than a single record, suggesting precursor synthesis is a modest but distinct sub-stream.
↗ 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.
Method for Manufacturing Lithium Secondary Battery…
A method for manufacturing a lithium secondary battery includes preparing a battery cell, charging and discharging the battery cell under pressurization to activate the battery, and then charging is performed in a constant voltage mode. The battery cell includes a positive electrode, a negative electrode and an electrolyte, with the positive electrode… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | 一种锂离子电池 | 78 |
| 2 | 一种锂离子电池及其化成方法 | 44 |
| 3 | 一种以富锂锰基固溶体材料为正极的电池的应用方法 | 19 |
| 4 | 一种富锂电池的化成方法 | 16 |
| 5 | 一种改善富锂锰基锂离子电池循环稳定性的方法 | 13 |
| 6 | 一种电压降抑制型富锂锰基全电池及其制备方法 | 11 |
| 7 | 富锂锰基正极片及其制备方法和锂离子电池及其制备方法 | 8 |
| 8 | 一种含有富锂锰基材料的锂离子电池活化方法及得到的锂离子电池 | 8 |
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 IP structure means for R&D investment decisions
The combination of a Growth life-cycle stage, extreme top-applicant concentration, sparse collaboration, and. China-led jurisdiction coverage frames where entry risk is highest and where differentiation headroom remains.
Growth stage: multi-year expansion from a low base, with annual volume eased from its 2023 peak
The field sits in a Growth life-cycle stage driven by an 880% jump in recent-window filings. Annual volume peaked in 2023 and has eased since, though the most recent years are further suppressed by publication lag. For R&D teams, this means the claim space is actively being staked but is not yet mature — early movers can still establish differentiated positions in adjacent routes before the field consolidates.
Growth stageOne dominant filer holds the core cell-level IP block
LG Energy Solution’s 45 patent families represent a structurally dominant position; the top five filers account for 65% of the hundred largest filers’ combined total. Any entrant competing on mainstream fast-charge formation protocols or electrode design within H01M faces a dense incumbent block. Differentiation through precursor chemistry (C01G), nanostructure engineering (B82Y), or charge-management systems (H02J) offers lower-density routes into the field.
Highly concentratedNo co-applicant activity detected in the current corpus
Evidence on co-filing partnerships is pending — no collaboration links appear in the available data. The absence of visible co-applicant relationships may indicate that players are currently filing independently, or that collaborative work has not yet entered the patent record. R&D teams should monitor whether academic–industry partnerships emerge as the field matures, particularly given the presence of Chinese Academy of Sciences institutes and universities among the smaller filers.
Evidence pendingChina leads filing volume; Europe and India show meaningful secondary coverage
China accounts for the largest share of filing records, followed by Europe (EPO) and India. South Korea and the United States each have modest coverage. The relatively light US presence is notable given LG Energy Solution’s global commercial footprint and suggests that US prosecution may be deferred or in progress. Competitors seeking freedom-to-operate in Western markets should audit the US and EPO coverage carefully, as filings there may still be pending publication.
China-led, EPO secondaryGo 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.
Co-filing pairs, ranked by the number of jointly-filed patent families.
LG Energy Solution leads; Chinese institutions and companies form a distant challenger tier
The Momentum data shows that most participants — including LG Energy Solution — entered the space recently, confirming the field’s Growth stage.
LG Energy Solution
LG Energy Solution holds 45 patent families, all filed recently (38 in the most recent window, classified as a new entrant by momentum). Its technology focus is tightly concentrated in H01M 10 (secondary batteries and their manufacture) and H01M 4 (electrodes), indicating a systematic effort to control cell-level and electrode-level fast-charge IP. The breadth and recency of these filings create a formidable incumbent block in the core claim space.
families: 45Ningbo Institute of Materials Technology & Engineering (CAS)
With 3 patent families and a new-entrant momentum profile, this CAS institute is the second-ranked filer. Its technology focus spans H01M 10 (cell-level) and extends into H02J 7 (power supply and charging systems), a route that LG Energy Solution has not prominently occupied — offering a potential differentiation angle around charge management rather than cell chemistry alone.
families: 3| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| LG Energy Solution Ltd. | 38 | ▲ new entrant |
| Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences | 1 | ▲ new entrant |
| Qingdao Qianyun High-Tech New Materials Co., Ltd. | 1 | ▲ new entrant |
| Hubei EVE Power Co., Ltd. | 1 | ▲ new entrant |
| POSCO Holdings Inc. | 1 | ▲ new entrant |
Under-served branches adjacent to the dominant H01M core
Several IPC branches appear at very low density relative to H01M, suggesting areas where the claim space is sparse. These are observations of relative sparsity in the current corpus; they carry technical plausibility but no validated commercial opportunity without further market and freedom-to-operate analysis.
B82Y · Nanotechnology applications in manganese-rich fast charging
B82Y accounts for only 1 record in the corpus, indicating that nanostructure engineering approaches — such as nano-coated cathode particles or nano-structured current collectors designed to improve fast-charge kinetics in manganese-rich systems — are minimally patented. Given the known role of particle morphology in rate capability and voltage decay in lithium-rich manganese-based cathodes, this branch has plausible technical value. Entry would likely combine H01M 4 electrode claims with B82Y cross-classification, targeting particle engineering rather than cell-level formation protocols where LG Energy Solution is dominant.
Search this in Eureka →C30B · Crystal growth for manganese-rich cathode precursors
C30B (crystal growth) appears in only 1 record, filed by Guolian Automotive Power Battery Research Institute, which also cross-classifies into C01G 45. Crystal growth methods for controlling manganese-rich cathode precursor morphology — a parameter directly linked to electrochemical performance and fast-charge stability — are therefore largely unclaimed in this specific context. An entrant with expertise in precursor co-precipitation or solid-state synthesis could develop a differentiated IP position here, particularly as cathode precursor supply chains become strategically important.
Search this in Eureka →How leaders differ by technology route across IPC branches
Strength of each leader across the main technology routes.
| Player | H01M 10 · Batteries, cells & fuel cells | H01M 4 · Batteries, cells & fuel cells | C01G 53 · Compounds of other metals | B23K 26 · Welding, soldering & brazing | B82Y 30 · Nanotechnology applications |
|---|---|---|---|---|---|
| LG Energy Solution Ltd. | Strong · 45 | Strong · 43 | Absent | Absent | Absent |
| Guolian Automotive Power Battery Research Institute Co., Ltd. | Strong · 3 | Moderate · 1 | Absent | Absent | Absent |
| Tianjin Guoan MGL New Materials Technology Co., Ltd. | Strong · 2 | Strong · 2 | Absent | Absent | Absent |
| Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences | Strong · 3 | Absent | Absent | Absent | Absent |
| Central South University | Strong · 1 | Strong · 1 | Strong · 1 | Absent | Absent |
| Dalian Institute of Chemical Physics, Chinese Academy of Sciences | Strong · 1 | Strong · 1 | Strong · 1 | Absent | Absent |
| Beijing University of Technology | Strong · 2 | Absent | Absent | Absent | Absent |
Frequently asked questions
The current corpus contains 79 patent families in scope. This count covers global filings and reflects the field’s status as an emerging sub-domain within advanced battery technology.
LG Energy Solution is the leading filer with 45 patent families, placing it far ahead of all other applicants. The next-ranked filers — including Ningbo Institute of Materials Technology & Engineering (CAS) and Beijing Chuangneng Huitong Technology Co., Ltd. — each hold 3 patent families.
The field is in a Growth life-cycle stage. Recent three-year filings are 880% above the prior three-year window, confirming multi-year expansion from a near-zero base. Annual volume peaked in 2023 at 26 filings and has eased since, though data for 2024 and 2025 is further suppressed by publication lag and should not be read as a real slowdown.
China leads with 44 filing records, followed by Europe (EPO) with 17, India with 8, South Korea with 6, the United States with 4, and WIPO (PCT) with 2. The relatively light US coverage is notable and may reflect deferred or pending prosecution.
H01M (batteries, cells, and fuel cells) dominates the corpus. Adjacent branches with very low filing density include B82Y (nanotechnology applications), B23K (welding and bonding), C30B (crystal growth), and H01G (capacitors) — each with only 1 record. C01G (compounds of other metals, relevant to cathode precursors) has 6 records and represents a modest secondary stream.
No co-applicant collaboration links are present in the available evidence for this corpus. Participants appear to be filing independently. The presence of Chinese Academy of Sciences institutes and universities among smaller filers suggests that academic–industry partnerships could emerge as the field matures, but this has not yet appeared in the patent record.
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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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