Measuring device for electrical cells
AssigneeRamot University Authority for Applied Research and Industrial Development Ltd.
InventorsEmanuel Peled, Chaim N. Yarnitzky
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Abstract
The present invention relates to apparatus and methods for measuring the different potential drops in electrochemical cells (EC), i.e. measuring independently the following: anodic and cathodic over potentials (IR free) each half cell ohmic solution resistance and each half cell solution potential drop (IR drop). This invention is applicable to electrochemical cells such as: batteries, electroplating baths, water electrolyzers and other EC operating continuously.
Claims6
Electrochemical cell testing apparatus for testing the storage capacity of an electrochemical battery including two half-cells, which apparatus comprises:
- current applying means for applying a constant current and a superimposed alternating current to said battery;
- and
- sensing means for connection with cell terminals associated with each half-cell and to the current applying means for sensing and indicating with respect to at least one half-cell over potential difference, solution resistance and solution potential difference.
A method for electrochemical cell testing of a battery including first and second half-cells comprising the steps of:
- applying a constant current and a superimposed alternating current to the battery being tested;
- and
- sensing the voltage of the first and second terminals of each cell being tested and providing in response thereto an output indication of overpotential difference, solution-resistance and current-solution resistance potential drop of each half cell in said battery being tested.
Dependencies are inferred from the claim text.