Solid polymer electrolyte-based oxygen batteries
AssigneeEIC Laboratories, Inc.
InventorsKuzhikalail M. Abraham, Zhiping Jiang
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Abstract
This invention features polymer-based batteries comprising metal anodes and an oxygen gas cathode. The oxygen is not stored in the battery but rather it is accessed from the environment. This solid-state battery is constructed by sandwiching a metal ion conductive polymer electrolyte film between a metal anode (negative electrode) and a composite carbon electrode which serves as the cathode current collector on which the electroactive oxygen is reduced during discharge of the battery to generate electric current. The metal anodes include lithium, magnesium, sodium, calcium, aluminum and zinc.
Claims12
An electrochemical cell comprising:
- a metal-containing electroactive anode;
- an oxygen electroactive cathode;
- and
- a polymer electrolyte disposed between said metal containing anode and said oxygen electroactive cathode;
- wherein said polymer electrolyte comprises;
- a polymer hose;
- electrolyte salt;
- and
- a plasticizer solvent chosen from the group of solvents consisting of propylene carbonate, ethylene carbonate, dimethyl sulfoxide, gamma-butyrlactone, tetramethylene sulfone (sulfolane), N-methyl pyrrolidinone, tri-ethylene gylcol dimethyl ether, and tetra-ethylene glycol dimethyl ether, and minutes thereof.
The cell of claim 5 wherein said metal-containing electroactive anode is Li.
Dependencies are inferred from the claim text.