Recirculating anode
First Claim
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1. A particle-based electrochemical power source comprising one or more cells, each of which comprises:
- a particulate anode comprising a static or quasi-static flow of electroactive particles;
a cathode;
a flow of reaction solution through the particulate anode along a flow path or a means for delivering the flow of reaction solution; and
one or more particle releasers situated along the flow path and configured to allow at least a portion of the electroactive particles to exit the cell in the flow of reaction solution and/or to maintain the porosity of and the flow of reaction solution through the anode sufficiently to allow for efficient operation of the cell.
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Abstract
A metal-based fuel cell in which a flow path delivers a flow of reaction solution through a particulate anode and one or more particle releasers are situated along the flow path and configured to release from the cell particles which are prone to clogging due to reductions in size caused by anodic dissolution.
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Citations
33 Claims
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1. A particle-based electrochemical power source comprising one or more cells, each of which comprises:
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a particulate anode comprising a static or quasi-static flow of electroactive particles;
a cathode;
a flow of reaction solution through the particulate anode along a flow path or a means for delivering the flow of reaction solution; and
one or more particle releasers situated along the flow path and configured to allow at least a portion of the electroactive particles to exit the cell in the flow of reaction solution and/or to maintain the porosity of and the flow of reaction solution through the anode sufficiently to allow for efficient operation of the cell. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 27, 28)
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18. A method of operating an individual cell within a particle-based electrochemical power source, the individual cell comprising a cathode and a particulate anode comprising electroactive particles, the method comprising:
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delivering a flow of reaction solution through the particulate anode;
allowing the anode to undergo anodic dissolution, thereby reducing the size of the electroactive particles; and
allowing at least a portion of the electroactive particles to exit the cell. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 29)
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30. A power source, the power source having one or more cells, each of which comprises:
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a particulate anode comprising a static or quasi-static flow of electroactive particles confined by a planar cavity;
a planar cathode;
a recirculating flow of reaction solution through the particulate anode along a flow path or a means for delivering the flow of reaction solution; and
one or more particle releasers situated along the flow path and configured to allow at least a portion of the electroactive particles to exit the cell in the recirculating flow of the reaction solution and/or to maintain the porosity of and the flow of reaction solution through the anode sufficiently to allow for efficient operation of the cell. - View Dependent Claims (31, 32, 33)
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Specification