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US 2016/0079642 A1Published application
System and method for increasing electrical efficiency of metal-air cell
AssigneePhinergy Ltd.
InventorsYisrael MILLER, Avraham YADGAR, Dekel TZIDON
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Abstract
Flow directing element in a metal air cell is configured to cause evenly distributed flow of aqueous electrolyte solution electrolyte in it over the anode. Flow distributing element in a metal air cell is configured to lengthen the path of electrolyte flow from an inlet to the anode, thereby to increase ohmic resistance to shunt currents in the cell. A battery with these cells consumes the metal in the metal anodes evenly and with minimized shunt currents.
Claims22
A metal-air cell comprising:
- a metal anode;
- an air electrode;
- an aqueous electrolyte solution inlet located at a first wall of the metal air cell;
- an aqueous electrolyte solution outlet located at a second wall opposite to the first wall, wherein the first and second walls have a first length;
- and
- one or more slotted elements for directing flow of the aqueous electrolyte solution over a surface of the anode, that includes a plurality of slits to direct the flow of the aqueous electrolyte solution over a surface of the metal anode, the slotted element is positioned adjacent to the metal anode.
3 more elements
(canceled)
A metal air cell comprising:
- a metal anode;
- an air electrode;
- an aqueous electrolyte solution inlet located at a first wall of the metal air cell;
- an aqueous electrolyte solution outlet located at a second wall opposite to the first wall, wherein the first and second walls have a first length;
- and
- one or more flow distributing elements for directing flow of the aqueous electrolyte solution over a surface of the anode,
- wherein the one or more flow distributing elements is designed to cause an extension of the length of flow path from the inlet to the metal anode by at least 1.5 times the first length.
4 more elements
19-21. (canceled)
A metal-air battery comprising:
- two or more cells having substantially the same dimensions,
- each of the cells comprises:
- a metal anode;
- at least one air electrode located in the vicinity of the metal anode;
- a first aqueous electrolyte solution inlet for introducing aqueous electrolyte solution to the cell, having a first cross section;
- and
- a second aqueous electrolyte solution inlet for supplying the aqueous electrolyte solution to the two or more cells via the first aqueous electrolyte solution inlet,
- wherein a resistance to the flow in each cell is substantially the same.
5 more elements
Dependencies are inferred from the claim text.