Double layer capacitor, which is composed of double layer capacitor units and its use as an electrochemical energy store

摘要

The invention relates to double-layer capacitor unit comprising two electrodes and an electrolyte between the electrodes, having the following features: - the electrodes each comprise an active layer of metal oxide powder on a chemically resistant metal support - the electrolyte is dilute aqueous mineral acid or alkali metal hydroxide solution. IMAGE