Hybrid redox fuel cell system
AssigneeEss Tech, Inc.
InventorsYang Song, Craig Evans
Life of this patent
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Abstract
A hybrid redox fuel cell system includes a hybrid redox fuel cell including an anode side through which a reductant is flowed and a cathode side through which liquid electrolyte is flowed, and a catalyst bed fluidly connected to the cathode side of the hybrid redox fuel cell, the catalyst bed including a substrate layer and a catalyst layer spiral wound into a jelly roll structure. Furthermore, the liquid electrolyte includes a metal ion at a higher oxidation state and the metal ion at a lower oxidation state, and power is generated at the hybrid redox fuel cell by way of reducing the metal ion from the higher oxidation state to the lower oxidation state at the cathode side while oxidizing the reductant at the anode side.
Claims20
A hybrid redox fuel cell system, comprising:
- a hybrid redox fuel cell including an anode side and a cathode side,
- a first catalyst bed fluidly connected to the cathode side of the hybrid redox fuel cell, the first catalyst bed including a substrate layer spiral wound with a catalyst layer into a jelly roll structure, and
- a controller including instructions stored in non-transitory memory thereon, the instructions executable to:
- direct a reductant to the anode side, and
- recirculate a liquid electrolyte between the cathode side and the first catalyst bed, wherein the liquid electrolyte includes a metal ion at a higher oxidation state and the metal ion at a lower oxidation state,
- wherein power is generated at the hybrid redox fuel cell by way of reducing the metal ion at the higher oxidation state to the lower oxidation state at the cathode side while oxidizing the reductant at the anode side.
A hybrid redox fuel cell system, comprising:
- a hybrid redox fuel cell including an anode side and a cathode side,
- a first catalyst bed fluidly connected to the cathode side of the hybrid redox fuel cell, the first catalyst bed including a substrate layer spiral wound with a catalyst layer into a jelly roll structure, and
- a controller including instructions stored in non-transitory memory thereon, the instructions executable to:
- flow a reductant through the anode side of the hybrid redox fuel cell of the hybrid redox fuel cell system, and flow a liquid electrolyte through a cathode side of the hybrid redox fuel cell, wherein the liquid electrolyte includes a metal ion at a higher oxidation state and the metal ion at a lower oxidation state;
- direct the liquid electrolyte from the cathode side to a catalyst bed;
- and
- reduce the metal ion at the higher oxidation state to the lower oxidation state at the cathode side while oxidizing the reductant at the anode side to generate power at the hybrid redox fuel cell.
A hybrid redox fuel cell system, comprising:
- a hybrid redox fuel cell including an anode side and a cathode side,
- a first catalyst bed fluidly connected to the cathode side of the hybrid redox fuel cell, the first catalyst bed including a substrate layer spiral wound with a catalyst layer into a jelly roll structure;
- and
- a plurality of flow control devices, each of the plurality of flow control devices comprising one or more of a control valve, a flow meter and a pressure regulator, the plurality of flow control devices comprising:
- a first flow control device located between a reductant supply line, the reductant supply line fluidly connecting a reductant source and an anode side, and a reductant discharge line;
- and
- a second flow control device located between a first oxidant supply line, the first oxidant supply line fluidly connecting an outlet of the catalyst bed and a cathode side, and an oxidant discharge line, the oxidant discharge line fluidly connecting the cathode side and an inlet of the catalyst bed;
- wherein,
- the liquid electrolyte includes a metal ion at a higher oxidation state and the metal ion at a lower oxidation state, and
- a controller including instructions stored in non-transitory memory thereon, the instructions executable to:
- direct a reductant to the anode side, and
- recirculate a liquid electrolyte between the cathode side and the first catalyst bed, wherein the liquid electrolyte includes a metal ion at a higher oxidation state and the metal ion at a lower oxidation state,
- wherein power is generated at the hybrid redox fuel cell by way of reducing the metal ion at the higher oxidation state to the lower oxidation state at the cathode side while oxidizing the reductant at the anode side.
Dependencies are inferred from the claim text.