Rechargeable carbon-oxygen battery
First Claim
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1. A rechargeable battery for storing electrical energy, said rechargeable battery comprising:
- a stack of electrochemical cells configured to produce carbon monoxide gas when supplied with electricity and carbon dioxide gas;
a means for converting the carbon monoxide gas produced by the electrochemical cells into elemental carbon in its solid form; and
a means for storing the elemental carbon in its solid form;
wherein said rechargeable battery is configured to be charged by supplying electricity and carbon dioxide gas to said rechargeable battery; and
wherein said rechargeable battery is configured to be discharged by converting elemental carbon in its solid form to carbon dioxide gas, thereby generating electricity.
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Abstract
The invention relates to a rechargeable battery and a method to operate a rechargeable battery having high efficiency and high energy density for storing energy. The battery stores electrical energy in the bonds of carbon and oxygen atoms by converting carbon dioxide into solid carbon and oxygen.
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Citations
17 Claims
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1. A rechargeable battery for storing electrical energy, said rechargeable battery comprising:
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a stack of electrochemical cells configured to produce carbon monoxide gas when supplied with electricity and carbon dioxide gas; a means for converting the carbon monoxide gas produced by the electrochemical cells into elemental carbon in its solid form; and a means for storing the elemental carbon in its solid form; wherein said rechargeable battery is configured to be charged by supplying electricity and carbon dioxide gas to said rechargeable battery; and wherein said rechargeable battery is configured to be discharged by converting elemental carbon in its solid form to carbon dioxide gas, thereby generating electricity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of operating a rechargeable battery for storing electrical energy,
comprising: -
providing a rechargeable battery comprising; a stack of electrochemical cells configured to produce carbon monoxide gas when supplied with electricity and carbon dioxide gas; a means for converting the carbon monoxide gas into elemental carbon in its solid form; and a means for storing the elemental carbon in its solid form; charging said rechargeable battery by feeding electricity and carbon dioxide gas to said rechargeable battery, thereby producing elemental carbon in its solid form that is stored in the means for storing; and discharging said rechargeable battery by transforming at elemental carbon in its solid form that is stored in the means for holding or externally supplied into carbon dioxide gas. - View Dependent Claims (11, 12)
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13. A rechargeable battery comprising:
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a stack of electrochemical cells, each cell comprising a porous positive electrode separated from a porous negative electrode by a layer of electrolyte, and a holder comprising a reaction chamber with surfaces configured to catalyze the Boudouard reaction; a first port in fluid connection with the porous negative electrode of each cell of the stack of electrochemical cells; a second port in fluid connection with the porous positive electrode of each cell of the stack of electrochemical cells; wherein the rechargeable battery is configured to be charged by supplying electricity to the positive and negative electrodes of the stack of electromechanical cells and supplying carbon dioxide gas to the first port, whereby the carbon dioxide gas is converted to carbon monoxide gas in the stack of electrochemical cells, whereby the carbon monoxide gas is converted to solid elemental carbon in the holder. - View Dependent Claims (14, 15, 16, 17)
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Specification