MULTI-ELECTRODE ELECTROCHEMICAL CELL AND METHOD OF MAKING THE SAME

摘要

A multi-electrode device that includes an anode electrode, a cathode electrode, and a gate electrode situated between the anode and cathode, and having an electrolyte. The multi-electrode device can be a secondary (rechargeable) electrochemical cell. The gate electrode is permeable to at least one mobile species which is redox-active at at least one of the anode and cathode. The gate electrode has a resistance that is lower than that of a conductive non-uniform morphological feature that could be grown on the anode. The gate electrode provides the ability to avoid, recognize, and remove the presence of such non-uniform morphological features, and provides an electrical electrode that can be used to remove such non-uniform morphological features.

主权项

1. A device comprising:
a cathode electrode having a cathode electrical terminal, said cathode electrode in electrochemical communication with an electrolyte; an anode electrode having a anode electrical terminal, said anode electrode in electrochemical communication with said electrolyte; at least one gate electrode having a gate electrode electrical terminal, said at least one gate electrode in electrochemical communication with said electrolyte and permeable to at least one mobile species which is redox-active at at least one of said anode electrode and said cathode electrode, said at least one gate electrode situated between said cathode electrode and said anode electrode; a circuit configured to measure an operating parameter of the device and to determine when a cell health event occurs; and a circuit configured to respond to said cell health event.