Electrochemical Cells
OwnerJohn H. Cushmaninventor
Life of this patent
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Abstract
Electrochemical cells and batteries that can operate with a single electrolyte solution, such as those comprising an anode, a cathode current collector, and a porous, non-conductive spacer between the cathode current collector and anode. Membraneless electrochemical cells and batteries are also disclosed. The electrochemical cells and batteries disclosed herein may be used, for example, to produce electricity or to generate hydrogen or both, and to deliver electricity or hydrogen or both to process applications.
Claims23
1-237. (canceled)
An electrochemical cell, which comprises:
- a. an anode selected from aluminum, gallium, indium, thallium and alloys comprising at least one of these;
- b. a cathode current collector;
- and
- c. a porous, non-conductive spacer between the cathode current collector and anode.
An electrochemical cell comprising a single aqueous electrolyte solution in contact with a non-metallic current collector, an oxidant, and a metal solid wherein current travels from the metal solid to the current collector via a load,
- or
- an electrochemical cell comprising a single aqueous electrolyte solution in contact with a non-metallic current collector, an oxidant, and a metal solid wherein current travels from the metal solid to the current collector via a load, and wherein the pH is greater or equal to 12,
- or
- an electrochemical cell comprising a single aqueous electrolyte solution in contact with a non-metallic current collector, an oxidant, and one or more anodes wherein current travels from the one or more anodes to the current collector via a load, and wherein the pH is greater or equal to 10.
An electrochemical cell comprising:
- a. a cathode;
- b. an anode adjacent to the cathode at a distance;
- c. a first polar electrolyte solution in contact with the cathode and disposed within the distance comprising an oxidant;
- d. a second polar electrolyte solution in contact with the anode and disposed within the distance comprising a suitable metal ion;
- and
- e. a separation agent;
- wherein the first and second electrolyte solutions are in contact with each other and are immiscible, and wherein there is no membrane in between the first and second electrolyte solutions,
- or
- an electrochemical cell comprising:
- a. a cathode;
- b. an anode adjacent the cathode at a distance;
- c. a first polar aqueous electrolyte solution in contact with the cathode and disposed within the distance comprising S2O82−;
- d. a second polar electrolyte alcoholic solution in contact with the anode and disposed within the distance comprising Al3+;
- and
- e. borosilicate within both the first and second electrolyte solutions;
- wherein the first and second electrolyte solutions are in contact with each other and are immiscible, and wherein there is no membrane in between the first and second electrolyte solutions,
- or
- an electrochemical cell comprising:
- a. a non-metallic cathode;
- b. a non-metallic anode adjacent the cathode at a distance;
- c. a first polar aqueous electrolyte solution in contact with the cathode and disposed within the distance comprising S2O82−;
- and
- d. a second polar electrolyte alcoholic solution in contact with the anode and disposed within the distance comprising a metal solid;
- wherein the first and second electrolyte solutions are in contact with each other and are immiscible, and wherein there is no membrane in between the first and second electrolyte solutions,
- or
- an electrochemical cell comprising:
- a. a cathode;
- b. an anode adjacent to the cathode at a distance;
- c. a first aqueous electrolyte solution in contact with the cathode and disposed within the distance comprising an oxidant;
- d. a second polar electrolyte solution in contact with the anode and disposed within the distance comprising a metal and an oxidant;
- and
- e. a separation agent;
- wherein the first and second electrolyte solutions are in contact with each other and are immiscible, and wherein there is no membrane in between the first and second solutions.
Dependencies are inferred from the claim text.