US 2019/0198887 A1Published application

Metal air battery and method of manufacturing gas diffusion layer included in metal air battery

AssigneesSamsung Electronics Co., Ltd., Seoul National University R&Db Foundation

InventorsDongjoon Lee, Chong rae Park, Yeonsu Jung, Young shik Cho, Minhoo Byeon, Hyukjae Kwon, Mokwon Kim, Joonhee Kim, Hyunjin Kim, Hyunpyo Lee, Heungchan Lee, Dongmin Im

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Abstract

A gas diffusion layer for a metal-air battery may include a plurality of carbon nanotube thin films that are arranged to be stacked, and the carbon nanotube thin films may include a plurality of first carbon nanotubes arranged in a predetermined direction. The gas diffusion layer for the metal-air battery may include a plurality of carbon nanotube thin films in which a plurality of carbon nanotubes are arranged such that they cross each other by a floating catalyst chemical vapor deposition (“FCCVD”) method.

Claims16

Dependent claims

A metal-air battery comprising:

an anode layer comprising a metal;
a cathode layer which comprises a cathode catalyst layer and uses oxygen as an active material;
a gas diffusion layer which is in contact with the cathode layer and comprises a plurality of carbon nanotube thin films stacked on each other, wherein the gas diffusion layer has an average tensile strength of 20 megapascals or above;
and
an electrolyte film between the anode layer and the cathode layer,
wherein the plurality of carbon nanotube thin films comprises:
a first carbon nanotube thin film comprising a plurality of first carbon nanotubes extending in a first direction;
and
a second carbon nanotube thin film comprising a plurality of second carbon nanotubes extending in a second direction.

6 more elements

Dependencies are inferred from the claim text.