New Aspects in the Understanding of High Voltage Aluminium Electrolytic Capacitors

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Abstract

High voltage (HV) Aluminium electrolytic capacitors with working voltages over 400 V are the backbone of industrial and automotive electronics. Recent developments in the field of fundamental understanding of the electrical breakdown of the anodic oxide of high voltage Aluminium electrolytic capacitors are presented. The adsorption of long chain organic molecules increases the breakdown strength of Aluminium electrolytic capacitors, because the relation between the injection current and the breakdown voltage, on the one side, and the electrical parameters of the electrolyte (either resistivity or conductivity), on the other side, originates from the Freundlich adsorption isotherm which relates the surface number density of the reducing agents with their volume number density. Experimental and literature data are discussed.

Original languageEnglish
Title of host publicationPCIM Europe digital days 2021; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
PublisherIEEE
Publication date2. Jul 2021
Pages332-336
ISBN (Print)978-3-8007-5515-8
Publication statusPublished - 2. Jul 2021
EventInternational Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, PCIM Europe digital days 2021; - ONLINE
Duration: 3. May 20217. May 2021

Conference

ConferenceInternational Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, PCIM Europe digital days 2021;
CityONLINE
Period03/05/202107/05/2021

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