Method for recovering active metal of lithium secondary battery
US-12545974-B2 · Feb 10, 2026 · US
by wet processes (recovery or separation of nickel or cobalt using organic agents C22B3/00)
by wet processes (recovery or separation of nickel or cobalt using organic agents C22B3/00) · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C22B23/04 |
| Official title | {by wet processes (recovery or separation of nickel or cobalt using organic agents C22B3/00)} |
| Display label | by wet processes (recovery or separation of nickel or cobalt using organic agents C22B3/00) |
| Total patents | 41 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 1 |
| 2017 | 3 |
| 2018 | 4 |
| 2019 | 2 |
| 2020 | 2 |
| 2021 | 4 |
| 2022 | 1 |
| 2023 | 6 |
| 2024 | 10 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Chromatographic method for separating transition metals
US-12383848-B2 · Aug 12, 2025 · US
Method of extracting metal from salt solution derived from spent battery
US-2025149669-A1 · May 8, 2025 · US
Recycling methods for lithium-ion batteries
US-2025015378-A1 · Jan 9, 2025 · US
Recovery method of valuable metal in positive electrode sheet of lithium battery
US-2025007025-A1 · Jan 2, 2025 · US
Method for treating lithium ion battery waste
US-12157927-B2 · Dec 3, 2024 · US
Method for recovering valuable metal
US-12084742-B2 · Sep 10, 2024 · US
Systems and methods for recycling electrodes
US-12068464-B2 · Aug 20, 2024 · US
Metal recovery method and metal recovery device
US-2024254643-A1 · Aug 1, 2024 · US
Method for extracting nickel from high matte nickel leaching residue
US-12000012-B2 · Jun 4, 2024 · US
Method for recovering active metal of lithium secondary battery
US-2024154197-A1 · May 9, 2024 · US
Method of recycling positive electrode active material and recycled positive electrode active material prepared by the same
US-2024120566-A1 · Apr 11, 2024 · US
Method for extracting nickel from high matte nickel leaching residue
US-2024084421-A1 · Mar 14, 2024 · US
Method of recycling positive electrode active material and recycled positive electrode active material prepared by the same
US-2024055597-A1 · Feb 15, 2024 · US
Method of recycling positive electrode active material and recycled positive electrode active material prepared by the same
US-2024039070-A1 · Feb 1, 2024 · US
Method for recovering lithium from lithium ion battery scrap
US-2023304130-A1 · Sep 28, 2023 · US
Method for leaching nickel from nickel ore and method for producing nickel sulfate
US-2023257282-A1 · Aug 17, 2023 · US
Method for recovering active metal of lithium secondary battery
US-2023250507-A1 · Aug 10, 2023 · US
Method for recovering lithium from lithium ion battery scrap
US-11702719-B2 · Jul 18, 2023 · US
Method for anaerobically cracking power battery
US-11591525-B2 · Feb 28, 2023 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C22B23/04?
- CPC C22B23/04 is the Cooperative Patent Classification code for “by wet processes (recovery or separation of nickel or cobalt using organic agents C22B3/00).”
- How many patents are filed under CPC C22B23/04 (by wet processes (recovery or separation of nickel or cobalt using organic agents C22B3/00))?
- Our database includes 41 publications tagged with this CPC code.
- Is patent activity under CPC C22B23/04 growing?
- Publication counts under this code: 10 in 2024 vs 4 in 2025 (latest complete years).