APPARATUS AND METHOD FOR MEASURING ELECTRICAL POTENTIAL OF ELECTROLYTE

摘要

According to a first aspect of the present invention there is provided an apparatus for measuring the electrical potential in an electrolyte (13) in a capacitor (9), the apparatus comprising: a reservoir (1) for retaining a first portion (13a) of the electrolyte outside of the capacitor that is in electrical connection with a second portion (13b) of the electrolyte contained in the capacitor; and a reference electrode (7), the reference electrode in. use being located in the reservoir and being in electrical connection with the first portion of the electrolyte, wherein the reference electrode is arranged to measure the electrical potential in the first portion of the electrolyte, so as to provide a measurement of the electrical potential in the second portion of the electrolyte contained in the capacitor.