CPC H01M 4/13 (2013.01) [H01M 4/8626 (2013.01); H01M 4/96 (2013.01); H01M 12/08 (2013.01); H01M 2004/028 (2013.01); Y02E 60/10 (2013.01)] | 17 Claims |
1. A cathode for a metal-air battery, the cathode comprising:
a plurality of cathode materials, each of the plurality of cathode materials having a cylindrical or cone shape and using oxygen as an active material; and
a plurality of electrolyte films, each of the plurality of electrolyte films being disposed on an outer circumferential surface of a corresponding one of the plurality of cathode materials;
wherein a space, which is not occupied by the plurality of cathode materials and the plurality of electrolyte films, is defined between the plurality of electrolyte films,
wherein the plurality of cathode materials is spaced apart from each other by a predetermined distance,
wherein each of the plurality of cathode materials has a diameter of 150 nm or less, and
wherein each of the plurality of electrolyte films has a thickness of 10 nm or less.
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