Abstract: A composite solid electrolyte, including: a lithium ion conductor, and a coating layer on the lithium ion conductor, the coating layer including a silane compound represented by Formula 1: (—O)y—Si—(R1)x??Formula 1 wherein, in Formula 1, 1?x?3; 1?y?3; x+y=4; R1 is hydrogen, a halogen, a substituted or unsubstituted C1-C30 alkyl group, a substituted or unsubstituted C2-C30 alkenyl group, a substituted or unsubstituted C2-C30 alkynyl group, a substituted or unsubstituted C6-C30 aryl group, a substituted or unsubstituted C6-C30 aryloxy group, a substituted or unsubstituted C7-C30 arylalkyl group, a substituted or unsubstituted C2-C30 heteroaryl group, a substituted or unsubstituted C2-C30 heteroaryloxy group, a substituted or unsubstituted C3-C30 heteroarylalkyl group, a substituted or unsubstituted C4-C30 carbocyclic group, a substituted or unsubstituted C5-C30 carbocyclic alkyl group, a substituted or unsubstituted C2-C30 heterocyclic group, or a substituted or unsubstituted C2-C30 heterocyclic alkyl group

Abstract: A carbon composite includes: a carbonaceous core; and a polymer electrolyte membrane disposed on the carbonaceous core, the polymer electrolyte membrane including: a first ionic liquid, a first polymer layer disposed on the carbonaceous core and having a first ionic charge, and a second polymer layer disposed on the first polymer layer and having a second ionic charge opposite to the first charge of the first polymer layer.

Abstract: A metal-air battery includes: at least one positive electrode layer, which is configured for using oxygen as an active material and includes a first surface and a second surface opposite the first surface; a gas diffusion layer on the first surface of the positive electrode layer and including a plurality of carbon fibers; an electrolyte layer on the second surface of the positive electrode layer; and a negative electrode metal layer on the electrolyte layer, wherein the positive electrode layer includes a plurality of grooves, and wherein portions of the plurality of carbon fibers are in the grooves.

Abstract: A composite solid electrolyte, including: a lithium ion conductor, and a coating layer on the lithium ion conductor, the coating layer including a silane compound represented by Formula 1: (—O)y—Si—(R1)x??Formula 1 wherein, in Formula 1, 1?x?3; 1?y?3; x+y=4; R1 is hydrogen, a halogen, a substituted or unsubstituted C1-C30 alkyl group, a substituted or unsubstituted C2-C30 alkenyl group, a substituted or unsubstituted C2-C30 alkynyl group, a substituted or unsubstituted C6-C30 aryl group, a substituted or unsubstituted C6-C30 aryloxy group, a substituted or unsubstituted C7-C30 arylalkyl group, a substituted or unsubstituted C2-C30 heteroaryl group, a substituted or unsubstituted C2-C30 heteroaryloxy group, a substituted or unsubstituted C3-C30 heteroarylalkyl group, a substituted or unsubstituted C4-C30 carbocyclic group, a substituted or unsubstituted C5-C30 carbocyclic alkyl group, a substituted or unsubstituted C2-C30 heterocyclic group, or a substituted or unsubstituted C2-C30 heterocyclic alkyl grou

Abstract: A gas diffusion layer for a metal-air battery, the gas diffusion layer including: a porous layer including non-conductive fiber structures, a conductive carbon layer including a carbon material that is disposed on a surface of a non-conductive fiber structure of the plurality of non-conductive fiber structures.

Abstract: Provided is a metal-air battery including a cathode having an air path. The metal-air battery includes a plurality of folded cells stacked in a direction, and each of the folded cells includes: an anode having a U-shape defined by first and second portions separated from and parallel to each other, and a side portion which connects the first and the second portions to each other; an anode protection film arranged on an inner surface of the anode; and a first cathode and a second cathode on the anode protection film, the first cathode and the second cathode arranged facing each other between the first portion and the second portion of the anode. The first cathode and the second cathode each includes a base which contacts the anode protection film, and a plurality of protrusion units extended from the base.

Abstract: A metal air battery includes at least one gas diffusion layer assembly; a positive electrode layer disposed on a surface of the at least one gas diffusion layer assembly, wherein the positive electrode layer is capable of using oxygen as an active material; a protective electrolyte membrane disposed on the positive electrode layer; and a negative electrode metal layer disposed on the protective electrolyte membrane, wherein the gas diffusion layer assembly includes a first gas diffusion layer and a second gas diffusion layer, wherein the second gas diffusion layer is disposed on a first surface and an opposite second surface of the first gas diffusion layer, and wherein a gas diffusivity of the first gas diffusion layer is greater than a gas diffusivity of the second gas diffusion layer. Also, the gas diffusion layer assembly described above, and a method of manufacturing a metal air battery including the gas diffusion layer assembly.

Abstract: A positive electrode for a metal-air battery, the positive electrode including: a first layer disposed on a surface of an electrolyte membrane or a separator and including a first carbon material, a first electrolyte, and a first binder having an affinity with the first electrolyte; and a second layer disposed on the first layer and including a second carbon material, a second electrolyte, and a second binder having an affinity with the second electrolyte, wherein the first carbon material is different from the second carbon material, the first carbon material has a Brunauer Emmett Teller specific surface area which is greater than a Brunauer Emmett Teller specific surface area of the second carbon material, and wherein an amount of the first binder may be about 1.5 times to about 3 times greater than an amount of the second binder.

Abstract: A metal-air battery includes an anode portion including a metal; a cathode portion including a porous layer, wherein the porous layer includes a reduced non-stacked graphene oxide; and an electrolyte disposed between the anode portion and the cathode portion.

Abstract: A composite electrolyte film includes a composite electrolyte layer including: a first domain including a plurality of two-dimensional nanostructures, and a second domain which is disposed in an interstitial space between neighboring two-dimensional nanostructures of the plurality of two-dimensional nanostructures, wherein the plurality of two-dimensional nanostructures includes a first electrolyte.

Abstract: A composite electrolyte film includes a composite electrolyte layer including: a first domain including a plurality of two-dimensional nanostructures, and a second domain which is disposed in an interstitial space between neighboring two-dimensional nanostructures of the plurality of two-dimensional nanostructures, wherein the plurality of two-dimensional nanostructures includes a first electrolyte.

Abstract: A metal air battery includes at least one gas diffusion layer assembly; a positive electrode layer disposed on a surface of the at least one gas diffusion layer assembly, wherein the positive electrode layer is capable of using oxygen as an active material; a protective electrolyte membrane disposed on the positive electrode layer; and a negative electrode metal layer disposed on the protective electrolyte membrane, wherein the gas diffusion layer assembly includes a first gas diffusion layer and a second gas diffusion layer, wherein the second gas diffusion layer is disposed on a first surface and an opposite second surface of the first gas diffusion layer, and wherein a gas diffusivity of the first gas diffusion layer is greater than a gas diffusivity of the second gas diffusion layer. Also, the gas diffusion layer assembly described above, and a method of manufacturing a metal air battery including the gas diffusion layer assembly.

Abstract: A cathode includes: a porous carbon structure including a carbon nanostructure, wherein the porous carbon structure includes small-diameter pores having an average diameter of about 25 nanometers to about 200 nanometers, and large-diameter pores having an average diameter of greater than 200 nanometers to about 1.6 micrometers.