Air battery and manufacturing method of positive electrode of air battery
AssigneeNippon Telegraph and Telephone Corporation
InventorsMikayo Iwata, Masaya Nohara, Hiroaki Taguchi, Yuzu Kobayashi, Takeshi Komatsu
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Abstract
The present invention provides an air battery using oxygen in air as a cathode active material, the air battery comprising: a cylindrical anode made of a metal; a cathode constituted by a co-continuous body having a three dimensional network structure formed by an integrated plurality of nanostructures having branches; and a separator that is arranged between the cathode and the anode and absorbs an electrolytic solution, wherein: the cathode is arranged inside the anode via the separator; and the anode has an open hole that reaches the separator and constitutes a housing of the air battery.
Claims11
An air battery using oxygen in air as a cathode active material, the air battery comprising:
- a cylindrical anode made of a metal;
- a cathode constituted by a co-continuous body having a three dimensional network structure formed by an integrated plurality of nanostructures having branches;
- a separator that is arranged between the cathode and the anode and absorbs an electrolytic solution;
- and
- a cylindrical housing arranged outside the anode, wherein
- the cathode is arranged inside the anode via the separator,
- the anode has an open hole reaching the separator and constitutes a housing of the air battery, and
- the cylindrical housing has an open hole connected to the open hole of the anode.
A method for producing a cathode of an air battery using oxygen in air as a cathode active material, the air battery comprising:
- a cylindrical anode made of a metal;
- a cathode constituted by a co-continuous body having a three dimensional network structure formed by an integrated plurality of nanostructures having branches;
- a separator that is arranged between the cathode and the anode and absorbs an electrolytic solution;
- and
- a cylindrical housing arranged outside the anode, wherein:
- the cathode is arranged inside the anode via the separator;
- the anode has an open hole reaching the separator and constitutes a housing of the air battery, and
- the cylindrical housing has an open hole connected to the open hole of the anode,
- the method comprising producing the cathode by
- freezing a sol or gel in which the nanostructure is dispersed, and
- drying the frozen body in a vacuum.
A method for producing a cathode of an air battery using oxygen in air as a cathode active material, the air battery comprising:
- a cylindrical anode made of a metal;
- a cathode constituted by a co-continuous body having a three dimensional network structure formed by an integrated plurality of nanostructures having branches;
- and
- a separator that is arranged between the cathode and the anode and absorbs an electrolytic solution;
- and
- a cylindrical housing arranged outside the anode, wherein:
- the cathode is arranged inside the anode via the separator;
- the anode has an open hole reaching the separator and constitutes a housing of the air battery, and
- the cylindrical housing has an open hole connected to the open hole of the anode,
- the method comprising producing the cathode by the method comprising producing the cathode by
- allowing a predetermined bacterium to produce a gel in which nanofibers of any of iron oxide, manganese oxide, and cellulose are dispersed,
- freezing the produced gel,
- drying the frozen body in a vacuum, and
- carbonizing the dried body.
Dependencies are inferred from the claim text.