Positive electrode active material and preparation method thereof, positive electrode plate, secondary battery, battery module, battery pack, and electric apparatus
US-2024429384-A1 · Dec 26, 2024 · US
Electricity
Electricity · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01M4/525 |
| Official title | — |
| Display label | Electricity (mapped technology topic) |
| Total patents | 13,951 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 724 |
| 2016 | 777 |
| 2017 | 950 |
| 2018 | 909 |
| 2019 | 1,045 |
| 2020 | 1,191 |
| 2021 | 1,117 |
| 2022 | 1,385 |
| 2023 | 1,589 |
| 2024 | 1,842 |
| 2025 | 1,905 |
| 2026 | 517 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Secondary battery management system
US-2024396357-A1 · Nov 28, 2024 · US
Positive electrode active material and preparation method thereof, secondary battery, battery module, battery pack and electrical device
US-2024387819-A1 · Nov 21, 2024 · US
Battery and usage method for same, and battery system
US-2024356025-A1 · Oct 24, 2024 · US
Liquid Electrolyte Composition, and Electrochemical Cell Comprising Said Electrolyte Composition
US-2024347772-A1 · Oct 17, 2024 · US
Method of preparing positive electrode active material precursor and positive electrode active material precursor
US-12100837-B2 · Sep 24, 2024 · US
Lithium nickel-based composite oxide as a positive electrode active material for rechargeable lithium-ion batteries
US-2024300824-A1 · Sep 12, 2024 · US
Electrode and preparation method thereof, electrochemical apparatus, and electronic apparatus
US-2024297307-A1 · Sep 5, 2024 · US
Method for manufacturing electrode for all-solid-state battery, and electrode manufactured thereby
US-2024274781-A1 · Aug 15, 2024 · US
Electrolytes for lithium-rich, layered cathodes
US-2024258572-A1 · Aug 1, 2024 · US
Sodium layered oxides as cathode materials for sodium ion batteries and method of manufacturing the same
US-12030786-B2 · Jul 9, 2024 · US
Method of reusing positive electrode material
US-12021205-B2 · Jun 25, 2024 · US
High-nickel ternary core-shell precursor, positive electrode material and preparation method therefor
US-2024166533-A1 · May 23, 2024 · US
Coated positive electrode active material, positive electrode material, and battery
US-2024097120-A1 · Mar 21, 2024 · US
Electrode active material precursor, method for preparing the same, electrode active material, and battery
US-2024079551-A1 · Mar 7, 2024 · US
Positive electrode for secondary battery, and secondary battery
US-2024072252-A1 · Feb 29, 2024 · US
Preparation method of ni-rich ternary precursor and use thereof
US-2024025763-A1 · Jan 25, 2024 · US
Solid-state lithium-ion conductor and methods of manufacture thereof
US-11876225-B2 · Jan 16, 2024 · US
Electrochemical water splitting cell
US-2024003023-A1 · Jan 4, 2024 · US
Positive-electrode material for lithium secondary-battery, process for producing the same, positive electrode for lithium secondary battery, and lithium secondary battery
US-9225005-B2 · Dec 29, 2015 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01M4/525?
- CPC H01M4/525 is the Cooperative Patent Classification code for “Electricity.”
- How many patents are filed under CPC H01M4/525 (Electricity)?
- Our database includes 13,951 publications tagged with this CPC code.
- Is patent activity under CPC H01M4/525 growing?
- Publication counts under this code: 1,842 in 2024 vs 1,905 in 2025 (latest complete years).