Process for forming an electrolytic capacitor having a higher cap recovery and lower ESR
US11081290B2 · kind B2 · utility
2Cited by
11References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 13, 2020 |
| Grant date | Aug 3, 2021 |
| Priority date | — |
| Expiry date | Feb 7, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01G9/012
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided is an improved capacitor formed by a process comprising: providing an anode comprising a dielectric thereon wherein the anode comprises a sintered powder wherein the powder has a powder charge of at least 45,000 μFV/g; and forming a first conductive polymer layer encasing at least a portion of the dielectric by applying a first slurry wherein the first slurry comprises a polyanion and a conductive polymer and wherein the polyanion and conductive polymer are in a weight ratio of greater than 3 wherein the conductive polymer and polyanion forms conductive particles with an average particle size of no more than 20 nm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.