Catholytes for aqueous lithium/air battery cells
First Claim
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1. A battery cell, comprising:
- a protected anode, comprising,a lithium anode having a first surface and a second surface,a protective membrane architecture on at least the first surface of the anode;
a cathode compartment comprising, prior to initial discharge, a cathode for reducing molecular oxygen and an aqueous catholyte comprising water, an active first salt dissolved therein, such that the catholyte is a saturated salt solution, and;
wherein the protective membrane architecture comprises one or more materials configured to provide a barrier to isolate the lithium anode from components of the cathode compartment while allowing for lithium metal ion transport.
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Abstract
Li/air battery cells are configurable to achieve very high energy density. The cells include a protected a lithium metal or alloy anode and an aqueous catholyte in a cathode compartment. In addition to the aqueous catholyte, components of the cathode compartment include an air cathode (e.g., oxygen electrode) and a variety of other possible elements.
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Citations
25 Claims
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1. A battery cell, comprising:
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a protected anode, comprising, a lithium anode having a first surface and a second surface, a protective membrane architecture on at least the first surface of the anode; a cathode compartment comprising, prior to initial discharge, a cathode for reducing molecular oxygen and an aqueous catholyte comprising water, an active first salt dissolved therein, such that the catholyte is a saturated salt solution, and; wherein the protective membrane architecture comprises one or more materials configured to provide a barrier to isolate the lithium anode from components of the cathode compartment while allowing for lithium metal ion transport. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A battery cell, comprising:
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a protected anode, comprising, a lithium anode having a first surface and a second surface, a protective membrane architecture on at least the first surface of the anode; a cathode compartment comprising, prior to initial discharge, a cathode for reducing molecular oxygen and an aqueous catholyte comprising water, an active first salt dissolved therein, and a second salt different than the active first salt, and; wherein the protective membrane architecture comprises one or more materials configured to provide a barrier to isolate the lithium anode from components of the cathode compartment while allowing for lithium metal ion transport. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification