US 2013/0171527 A1 · RECHARGEABLE, THIN-FILM, ALL SOLID-STATE METAL-AIR BATTERY

Abstract

This disclosure describes metal-air battery devices that are rechargeable, thin film, and all solid-state. The disclosure further describes methods of manufacturing rechargeable, thin film, all solid-state, metal-air batteries. The devices disclosed include a porous cathode structure with an electrolyte incorporated therein. The porous cathode structure may be designed to contain pores of at least two distinct sizes (i.e., having bimodal pore size distribution), a smaller one to increase the active surface area of the cathode and a larger to facilitate the transport of gas-phase oxygen through the cathode. The methods disclosed include using pulsed microwave plasma enhanced chemical vapor deposition (p-μPECVD) to dynamically grow an electrolyte layer on the surface of the carbon within, or a desired portion of, the cathode structure.

Claims20

Dependent claims

A metal-air battery comprising:

a metal source layer;
an electrolyte layer between the metal source layer and a porous composite cathode layer;
and
the porous composite cathode layer having a first portion and a second portion, the porous composite cathode including conductive material deposited onto a support structure to form a porous conductive structure;
wherein solid electrolyte with metal ion conductivity has been deposited on surfaces within the first portion of the porous conductive structure;
wherein the first portion is in contact with the electrolyte layer and the second portion includes a porous conductive material in contact with the first portion.

3 more elements

Dependencies are inferred from the claim text.

Rechargeable, thin-film, all solid-state metal-air battery

Life of this patent

Rechargeable, thin-film, all solid-state metal-air battery

Life of this patent

Abstract

Claims20