Deterioration state estimation device, deterioration state estimation method, and program
US-2024210488-A1 · Jun 27, 2024 · US
of complete cells or cells stacks
of complete cells or cells stacks · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01M4/0447 |
| Official title | {of complete cells or cells stacks} |
| Display label | of complete cells or cells stacks |
| Total patents | 662 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 15 |
| 2016 | 10 |
| 2017 | 13 |
| 2018 | 33 |
| 2019 | 56 |
| 2020 | 75 |
| 2021 | 86 |
| 2022 | 92 |
| 2023 | 85 |
| 2024 | 78 |
| 2025 | 99 |
| 2026 | 20 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Systems and methods for series battery charging
US-10153651-B2 · Dec 11, 2018 · US
Secondary Battery Including Electrolyte Additive
US-2018323471-A1 · Nov 8, 2018 · US
Lithium secondary battery comprising positive electrode active material for synthesis of lithium cobalt oxide and preparation method thereof
US-2018323430-A1 · Nov 8, 2018 · US
Method of producing lithium ion secondary battery
US-2018316040-A1 · Nov 1, 2018 · US
Metal sulfide anolytes for electrochemical cells
US-10116003-B2 · Oct 30, 2018 · US
Anode structure for solid-state lithium-based thin-film battery
US-2018287131-A1 · Oct 4, 2018 · US
Charge method for solid-state lithium-based thin-film battery
US-2018287410-A1 · Oct 4, 2018 · US
Lithium secondary battery
US-2018277851-A1 · Sep 27, 2018 · US
Nonaqueous electrolyte secondary battery and vehicle
US-2018241027-A1 · Aug 23, 2018 · US
Secondary battery including electrolyte additive
US-10056648-B2 · Aug 21, 2018 · US
Formation method for sodium ion cell or battery
US-2018219248-A1 · Aug 2, 2018 · US
Tray for activating battery cell comprising elastic member
US-2018198102-A1 · Jul 12, 2018 · US
Method of manufacturing lithium-ion secondary battery and method of evaluating lithium-ion secondary battery
US-2018183091-A1 · Jun 28, 2018 · US
Method for preparing lithium secondary battery and lithium secondary battery prepared therefrom
US-9979051-B2 · May 22, 2018 · US
Methods for making a solid electrolyte interface layer on a surface of an electrode
US-9979008-B2 · May 22, 2018 · US
Fluoride ion battery and method for producing fluoride ion battery
US-2018131038-A1 · May 10, 2018 · US
Forming an Electrode
US-2018131045-A1 · May 10, 2018 · US
Method of manufacturing lithium secondary battery and lithium secondary battery manufactured by the same
US-2018123186-A1 · May 3, 2018 · US
Silicon-containing material and secondary-battery active material including silicon-containing material
US-9935310-B2 · Apr 3, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01M4/0447?
- CPC H01M4/0447 is the Cooperative Patent Classification code for “of complete cells or cells stacks.”
- How many patents are filed under CPC H01M4/0447 (of complete cells or cells stacks)?
- Our database includes 662 publications tagged with this CPC code.
- Is patent activity under CPC H01M4/0447 growing?
- Publication counts under this code: 78 in 2024 vs 99 in 2025 (latest complete years).