Separator for secondary battery, manufacturing method thereof, method for manufacturing secondary battery comprising the separator and secondary battery manufactured by the method
US-12183949-B2 · Dec 31, 2024 · US
Separators, membranes or diaphragms characterised by their combination with electrodes
Separators, membranes or diaphragms characterised by their combination with electrodes · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01M50/46 |
| Official title | Separators, membranes or diaphragms characterised by their combination with electrodes |
| Display label | Separators, membranes or diaphragms characterised by their combination with electrodes |
| Total patents | 3,528 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 197 |
| 2016 | 195 |
| 2017 | 254 |
| 2018 | 238 |
| 2019 | 250 |
| 2020 | 384 |
| 2021 | 270 |
| 2022 | 316 |
| 2023 | 482 |
| 2024 | 416 |
| 2025 | 427 |
| 2026 | 99 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Pasting paper for lead acid batteries
US-2024258646-A1 · Aug 1, 2024 · US
Electrode assembly and battery cell including the same
US-2024055730-A1 · Feb 15, 2024 · US
Lithium ion battery recycling process utilizing magnetic separation of electrode materials
US-2024047775-A1 · Feb 8, 2024 · US
Rechargeable battery, electrode assembly and method for manufacturing the same
US-2024030496-A1 · Jan 25, 2024 · US
Method of manufacturing electrode-separator composite, electrode-separator composite manufactured by the manufacturing method and lithium secondary battery comprising the same
US-2015380706-A1 · Dec 31, 2015 · US
Electrode of secondary cell including porous insulating layer, and manufacturing method thereof
US-9225012-B2 · Dec 29, 2015 · US
Separator, method of manufacturing the same and battery using the same
US-2015372275-A1 · Dec 24, 2015 · US
Stack-folding type electrode assembly
US-2015357671-A1 · Dec 10, 2015 · US
Non-aqueous electrolyte secondary battery and vehicle
US-9209502-B2 · Dec 8, 2015 · US
Conveying apparatus and a conveying method of separator of electric device
US-2015349311-A1 · Dec 3, 2015 · US
Lithium Secondary Battery
US-2015349308-A1 · Dec 3, 2015 · US
Polymer for use as protective layers and other components in electrochemical cells
US-2015349310-A1 · Dec 3, 2015 · US
Lithium ion secondary battery
US-2015333330-A1 · Nov 19, 2015 · US
Nonaqueous electrolyte secondary battery with high temperature and storage characteristics
US-9190647-B2 · Nov 17, 2015 · US
Nonaqueous electrolyte secondary battery
US-9190668-B2 · Nov 17, 2015 · US
Conveyor apparatus
US-2015314967-A1 · Nov 5, 2015 · US
Aqueous electrochemical energy storage devices and components
US-2015318530-A1 · Nov 5, 2015 · US
Solid state catholytes and electrolytes for energy storage devices
US-9172114-B2 · Oct 27, 2015 · US
Flat-shaped battery
US-2015295218-A1 · Oct 15, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01M50/46?
- CPC H01M50/46 is the Cooperative Patent Classification code for “Separators, membranes or diaphragms characterised by their combination with electrodes.”
- How many patents are filed under CPC H01M50/46 (Separators, membranes or diaphragms characterised by their combination with electrodes)?
- Our database includes 3,528 publications tagged with this CPC code.
- Is patent activity under CPC H01M50/46 growing?
- Publication counts under this code: 416 in 2024 vs 427 in 2025 (latest complete years).