Supercapacitors ? Charge Redistribution and Restoring Voltage

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F14%3APU109913" target="_blank" >RIV/00216305:26220/14:PU109913 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Supercapacitors ? Charge Redistribution and Restoring Voltage

Original language description

The charge in supercapacitor is stored on electrodes and in electrolyte. The charge on electrodes create the Helmholtz double layer which is formed immediately with time constant of the order of seconds, while the charge storage in electrolyte is going on with time constant of the order of hundreds seconds. When the charged supercapacitor is shorted for few seconds, the charge from electrodes is discharged while the charge in electrolyte remains mostly unchanged. The charge from electrolyte is redistributed by diffusion to the electrodes, until the charge on electrodes form the electric field which acts against the charge concentration gradient. Supercapacitor capacitance value depends on the voltage supercapacitor terminals; with increasing voltage total capacitance increases.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2014

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Proceedings

ISBN

978-80-214-4985-5

ISSN

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e-ISSN

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Number of pages

6

Pages from-to

145-150

Publisher name

Vysoké učení technické v Brně

Place of publication

Brno

Event location

Brno

Event date

Jun 25, 2014

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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