http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109859949-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01G9-055 |
| filingDate | 2018-01-26^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-03-26^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-03-26^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109859949-B |
| titleOfInvention | Method for reducing leakage current of medium-high voltage formed foil |
| abstract | The invention provides a method for reducing leakage current of medium-high voltage formed foil, which comprises the following steps: sequentially carrying out pretreatment, four-stage formation, first heat treatment, first impregnation, first compensation formation treatment, second impregnation, second compensation formation treatment, second heat treatment, third compensation formation treatment, third impregnation and aftertreatment on the etched foil or laminated foil to obtain the formed foil. The pretreatment comprises hydration treatment and solution dipping treatment. According to the invention, the corrosion foil or the laminated foil after hydration treatment is immersed in an organic acid solution or a weakly alkaline inorganic salt solution for solution immersion treatment, so that a loose porous hydrated oxide layer on the outermost layer of the oxide film is removed, the property of the hydrated oxide film is improved, the leakage current is reduced, and the service life of the electrolytic capacitor is prolonged. |
| priorityDate | 2018-01-26^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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