Back to results
US 10,770,768 B2Granted
Metal-air battery and method of manufacturing the same
AssigneeSamsung Electronics Co., Ltd.
InventorsInsun Jung, Hyukjae Kwon, Mokwon Kim, Junghwa Kim, Sunjung Byun, Daeun Yu, Dongjin Yun, Hyangsook Lee
Life of this patent
Estimating the term…
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.
Claims28
A metal-air battery comprising:
- an anode portion comprising a metal;
- a cathode portion comprising a porous layer, wherein the porous layer comprises a reduced non-stacked graphene oxide;
- and
- an electrolyte disposed between the anode portion and the cathode portion,
- wherein adjacent layers of the reduced non-stacked graphene oxide of the porous layer which are separated by an interval of about 1 nanometer to about 0.15 micrometer,
- wherein the porous layer has a porosity of 70 volume percent to 99 volume percent, and
- wherein the reduced non-stacked graphene oxide has mesopores and nanopores that are smaller than the mesopores.
4 more elements
A method of manufacturing a metal-air battery, the method comprising:
- providing an anode portion comprising a metal;
- forming a cathode portion configured for using oxygen as an active material, wherein the cathode portion comprises a porous layer;
- and
- providing an electrolyte between the anode portion and the cathode portion,
- wherein the forming of the cathode portion comprises
- forming a non-stacked graphene oxide using an anti-solvent precipitation method,
- reducing the non-stacked graphene oxide to form a reduced non-stacked graphene oxide, and
- disposing the reduced non-stacked graphene oxide to form the porous layer to manufacture the metal-air battery,
- wherein the reduced non-stacked graphene oxide has a crumpled shape and comprises adjacent layers which are separated by an interval of about 1 nanometer to about 0.15 micrometer, and
- wherein the porous layer has a porosity of 70 volume percent to 99 volume percent.
7 more elements
Dependencies are inferred from the claim text.