Relion, Inc.

Avista Laboratories, Inc.

Vanell L Martin

David R Lott

Lijun Bai

Wade A Huravitch

A fuel cell power system comprising a fuel cell having a cathode and an anode adapted to be coupled to a fuel supply, and which is configured to produce electrical power having a current and voltage output; a controller electrically coupled with the fuel cell, and configured to selectively short the anode to the cathode of the fuel cell; and circuitry configured to measure resistance of the fuel cell in timed relation to the shorting.

Method and apparatus for monitoring equivalent series resistance and for shunting a fuel cell

A fuel cell is disclosed and which includes an anode and a cathode and which produces a voltage output which is supplied to a load; an electrical energy storage device is provided; and a controller is electrically coupled to the fuel cell, and which periodically shunts the voltage output of the fuel cell between the anode and cathode by electrically coupling the electrical energy storage device to the anode and cathode of the fuel cell.

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Spokane, WA, United States of America

Vanell L Martin