Multi-electrode microbial fuel cells and fuel cell systems and bioreactors with dynamically configurable fluidics
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United States of America Patent
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Aug 27, 2013
Grant Date -
Sep 23, 2010
app pub date -
Mar 18, 2010
filing date -
Mar 18, 2009
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Abstract
Microbial fuel cells including multiple electrodes, and systems of such fuel cells, are provided. An exemplary fuel cell includes a population of exoelectrogenic microbes and at least two anodes in an anode chamber, and a cathode in a cathode chamber. A path exists between the chambers for conducting hydrogen ions and each anode is connected to the cathode by a separate external circuit. Electrical output from the fuel cell is maximized by optimizing the microbe population, achieved by dynamically controlling the sub-populations at each of the multiple anodes. Systems comprising multiple such fuel cells connected by a dynamically reconfigurable fluidics system provide further optimization.
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