Alkali metal-cathode solution battery

摘要

An alkali metal-cathode solution storage battery includes an alkali metal anode including at least one alkali metal, a cathode including copper metal, and an alkali ion conducting electrolyte/separator separating the anode and cathode. An anode side electrolyte is between the anode and the separator, and a cathode side electrolyte is between the cathode and the separator. The cathode side electrolyte is selected to have capacity to dissolve metal ions from the alkali metal and electron conducting materials. An ion exchange reaction occurs during operation of the battery within the cathode side electrolyte. The battery can be operated at low temperature (i.e., <100° C.), and provide high specific energy density. The battery can be a planar battery arrangement.

主权项

1. An alkali metal-cathode solution battery, comprising:
an alkali metal anode including at least one alkali metal; a cathode comprising an electron conducting material; an alkali ion conducting electrolyte separator separating said anode and said cathode; an anode side electrolyte between said anode and said separator, and a cathode side electrolyte between said cathode and said separator, wherein said cathode side electrolyte has capacity to dissolve metal ions from said alkali metal and said electron conducting material, wherein an ion exchange reaction occurs during operation of said battery within said cathode side electrolyte, and wherein said alkali metal comprises sodium and said electron conducting material includes copper metal.