Cathode material for lithium-oxygen battery
AssigneesVolkswagen Aktiengesellschaft, International Business Machines Corporation
InventorsHo-Cheol Kim, Bryan D. McCloskey, Rouven Scheffler, Angela-Kristina Speidel, Sally A. Swanson, Gregory M. Wallraff
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Abstract
A lithium-oxygen battery may include an anode, a cathode, and an electrolyte between, and in contact with, the anode and the cathode. The anode may include lithium and/or a lithium alloy. In some examples, the cathode defines a surface that is predominantly metal oxide with an electron conductivity of at least 10−1 Siemens per centimeter. In some examples, the cathode defines a surface in contact with oxygen, and includes ruthenium oxide. In some examples, the cathode defines a surface that is substantially covered by ruthenium oxide and is in contact with oxygen.
Claims20
A lithium-oxygen battery comprising:
- an anode comprising lithium;
- a cathode defining a surface in contact with oxygen, wherein the cathode comprises ruthenium oxide;
- and
- a non-aqueous electrolyte between, and in contact with, both the anode and the cathode.
A lithium-oxygen battery comprising:
- a negative electrode comprising lithium;
- a positive electrode defining a surface, wherein the surface is predominantly metal oxide with an electron conductivity of at least 10−1 S/cm;
- and
- an aprotic electrolyte between, and in contact with, the negative electrode and the positive electrode.
A method comprising:
- forming a cathode comprising ruthenium oxide;
- forming an electrode comprising lithium;
- and
- assembling the cathode and anode with a non-aqueous electrolyte to form a lithium-oxygen battery, wherein the non-aqueous electrolyte is between, and in contact with, both the anode and the cathode.
Dependencies are inferred from the claim text.