Disclosed is a metal-air fuel cell based on a solid oxide electrolyte employing metal nanoparticles as fuel. The metal-air fuel cell includes an anode, a cathode, a solid oxide electrolyte and a metal fuel, wherein the metal fuel comprises metal nanoparticles having an average particle diameter ranging from 1 nm to 100 nm. The metal nanoparticles have a low melting point and provide high reactivity. Thus, the metal-air fuel cell forms a metal molten phase at a relatively low temperature thereby improving contactability and has improved reactivity to promote oxidation, thereby enabling highly efficient power generation.

Disclosed is a metal-air fuel cell based on a solid oxide electrolyte employing metal nanoparticles as fuel. The metal-air fuel cell includes an anode, a cathode, a solid oxide electrolyte and a metal fuel, wherein the metal fuel comprises metal nanoparticles having an average particle diameter ranging from 1 nm to 100 nm. The metal nanoparticles have a low melting point and provide high reactivity. Thus, the metal-air fuel cell forms a metal molten phase at a relatively low temperature thereby improving contactability and has improved reactivity to promote oxidation, thereby enabling highly efficient power generation.

A lithium air battery includes: a lithium negative electrode; a positive electrode; and an ion conductive oxygen-blocking film which is disposed on the lithium negative electrode, wherein the ion conductive oxygen-blocking film includes a first polymer including a polyvinyl alcohol or a polyvinyl alcohol blend, and a lithium salt, and wherein the ion conductive oxygen-blocking film has an oxygen transmission rate of about 10 milliliters per square meter per day to about 10,000 milliliters per square meter per day. Also a method of manufacturing a lithium air battery is disclosed.

A lithium air battery includes: a lithium negative electrode; a positive electrode; and an ion conductive oxygen-blocking film which is disposed on the lithium negative electrode, wherein the ion conductive oxygen-blocking film includes a first polymer including a polyvinyl alcohol or a polyvinyl alcohol blend, and a lithium salt, and wherein the ion conductive oxygen-blocking film has an oxygen transmission rate of about 10 milliliters per square meter per day to about 10,000 milliliters per square meter per day. Also a method of manufacturing a lithium air battery is disclosed.

A metal-oxygen battery includes a catholyte with: (i) carbon black; and, (ii) at least one of graphite and graphene, wherein said at least one of graphite and graphene constitutes between 0 wt % and 30 wt % of the total carbon in the catholyte.

A metal-oxygen battery includes a catholyte with: (i) carbon black; and, (ii) at least one of graphite and graphene, wherein said at least one of graphite and graphene constitutes between 0 wt % and 30 wt % of the total carbon in the catholyte.

This invention is related to a type of Air Metal Fuel Cell. The Air Metal Fuel Cell in this invention is made of a positive air electrode, metal negative electrode, membrane/membrane bag, siphon material, electrolyte, mandrel, shockproof buffer layer, cathode electrolyte, positive electrolyte, battery shell and supporting fixing device. There is a hydrophobic structure layer between the positive and negative electrodes. The advantages of the invented cell include high energy density, low production costs, and superior safety and reliability.

This invention is related to a type of Air Metal Fuel Cell. The Air Metal Fuel Cell in this invention is made of a positive air electrode, metal negative electrode, membrane/membrane bag, siphon material, electrolyte, mandrel, shockproof buffer layer, cathode electrolyte, positive electrolyte, battery shell and supporting fixing device. There is a hydrophobic structure layer between the positive and negative electrodes. The advantages of the invented cell include high energy density, low production costs, and superior safety and reliability.

The present invention provides a novel and improved metal-air battery in which a lot of catalyst can be disposed in a triple phase boundary, and further, battery properties can be improved. In the metal-air battery according to the present invention, a catalyst layer of an air electrode of a metal-air battery contains a catalyst element and a carbon material, the carbon material comprises two materials of a carbon material A supporting thereon the catalyst element and a carbon material B not supporting the catalyst element, the catalyst layer comprises an agglomerate X containing the catalyst element, the carbon material A and the carbon material B as main components and an agglomerate Y containing the carbon material B as a main component, and the agglomerate X is a continuum and the agglomerate Y is dispersed in the agglomerate X.

The present invention provides a novel and improved metal-air battery in which a lot of catalyst can be disposed in a triple phase boundary, and further, battery properties can be improved. In the metal-air battery according to the present invention, a catalyst layer of an air electrode of a metal-air battery contains a catalyst element and a carbon material, the carbon material comprises two materials of a carbon material A supporting thereon the catalyst element and a carbon material B not supporting the catalyst element, the catalyst layer comprises an agglomerate X containing the catalyst element, the carbon material A and the carbon material B as main components and an agglomerate Y containing the carbon material B as a main component, and the agglomerate X is a continuum and the agglomerate Y is dispersed in the agglomerate X.