Electrode structure, air cell, and air cell stack

Patent metadata

Field	Value
Publication number	US-10418676-B2
Application number	US-201415104057-A
Country	US
Kind code	B2
Filing date	Dec 10, 2014
Priority date	Dec 19, 2013
Publication date	Sep 17, 2019
Grant date	Sep 17, 2019

Abstract

An electrode structure includes a first electrode unit, a second electrode unit and a first insulating frame, in which the electrode units are adjacent to each other. The first insulating unit has an airflow space therein and includes an electrically conducive base with an airflow plane and an air cell cathode disposed on an outer surface of the airflow plane. The second insulating unit includes an electrically conductive base and an air cell anode disposed on an outer surface of the electrically conductive base. The first insulating frame spaces and joins the adjacent electrode units to each other such that the air cell cathode and the air cell anode of the adjacent electrode units are opposed to each other. The first insulating frame together with the adjacent electrode units forms an electrolytic solution container.

First claim

The invention claimed is:

1. An electrode structure, comprising:
a first electrode unit having an airflow space therein and comprising a box metal electrically conductive base with a metal airflow plane and an air cell cathode disposed on an outer surface of the metal airflow plane;
a second electrode unit comprising an electrically conductive base and an air cell anode disposed on an outer surface of the electrically conductive base; and
a first insulating frame,
wherein the first and second electrode units are adjacent to each other, and
wherein the first insulating frame spaces and joins the adjacent electrode units to each other such that the air cell cathode and the air cell anode of the adjacent electrode units are opposed to each other, and the first insulating frame together with the adjacent electrode units forms an electrolytic solution container,
wherein the box metal electrically conductive base comprises a metal non-gas permeable plate, a metal gas permeable plate, and metal ribs joining the metal non-gas permeable plate with the metal gas permeable plate.

2. The electrode structure according to claim 1 ,
wherein the first electrode unit has the airflow space therein and comprises the box metal electrically conductive base with the metal airflow plane and the air cell cathode disposed on a part of the outer surface of the metal airflow plane,
the second electrode unit comprises the electrically conductive base and the air cell anode disposed on a part of the outer surface of the electrically conductive base, and
the first insulating frame has an open area that is larger than an electrode area of non-smaller one between the air cell cathode and the air cell anode.

3. The electrode structure according to claim 1 , wherein an electrode area of the air cell cathode is larger than an electrode area of the air cell anode that is opposed to the air cell cathode.

4. The electrode structure according to claim 1 , wherein the first insulating frame comprises a step in which the first electrode unit or the second electrode unit fits.

5. An air cell stack comprising an electrode structure, comprising:
a first electrode unit having an airflow space therein and comprising a box metal electrically conductive base with a metal airflow plane and an air cell cathode disposed on an outer surface of the metal airflow plane;
a second electrode unit comprising an electrically conductive base and an air cell anode disposed on an outer surface of the electrically conductive base; and
a first insulating frame,
wherein the first and second electrode units are adjacent to each other, and
wherein the first insulating frame spaces and joins the adjacent electrode units to each other such that the air cell cathode and the air cell anode of the adjacent electrode units are opposed to each other, and the first insulating frame together with the adjacent electrode units forms an electrolytic solution container,
wherein the box metal electrically conductive base comprises a metal non-gas permeable plate, a metal gas permeable plate, and metal ribs joining the metal non-gas permeable plate with the metal gas permeable plate.

6. The air cell stack according to claim 5 , wherein the air cell stack is of a liquid activated type in which the air cell stack starts to generate electric power when an electrolytic solution is injected in the electrolytic solution container.

7. An air cell comprising an electrode structure, comprising:
a first electrode unit having an airflow space therein and comprising a box metal electrically conductive base with a metal airflow plane and an air cell cathode disposed on an outer surface of the metal airflow plane;
a second electrode unit comprising an electrically conductive base and an air cell anode disposed on an outer surface of the electrically conductive base; and
a first insulating frame,
wherein the first and second electrode units are adjacent to each other, and
wherein the first insulating frame spaces and joins the adjacent electrode units to each other such that the air cell cathode and the air cell anode of the adjacent electrode units are opposed to each other, and the first insulating frame together with the adjacent electrode units forms an electrolytic solution container,
wherein the box metal electrically conductive base comprises a metal non-gas permeable plate, a metal gas permeable plate, And metal ribs joining the metal non-gas permeable plate with the metal gas permeable plate,
wherein the air cell anode is disposed between the two first electrode units, and
the second insulating frame comprises the air cell anode in the frame and spaces and joins air cell cathodes of the adjacent two first electrode units to the air cell anode such that the air cell cathodes of the adjacent two first electrode units are opposed to the air cell anode, and the second insulating frame together with the two first electrode units forms an electrolytic solution container.

8. The air cell according to claim 7 , wherein the air cell is of a liquid activated type in which the air cell starts to generate electric power when an electrolytic solution is injected in the electrolytic solution container.

9. An electrode structure, comprising:
a first electrode unit having an airflow space therein and comprising a box metal electrically conductive base with an airflow plane and an air cell cathode disposed on an outer surface of the airflow plane;
a second electrode unit comprising an electrically conductive base and an air cell anode disposed on an outer surface of the electrically conductive base; and
a first insulating frame,
wherein the first and second electrode units are adjacent to each other, and
wherein the first insulating frame spaces and joins the adjacent electrode units to each other such that the air cell cathode and the air cell anode of the adjacent electrode units are opposed to each other, and the first insulating frame together with the adjacent electrode units forms an electrolytic solution container,
wherein the box metal electrically conductive base comprises a metal non-gas permeable plate, a metal gas permeable plate, and metal ribs joining the metal non-gas permeable plate with the metal gas permeable plate.

Assignees

• Nissan Motor

Inventors

• Shibata Itaru
• Uchiyama Noriko
• Komatsu Hirokazu
• Tsukada Yoshiko

Classifications

• H01M6/32

  activated through external addition of electrolyte or of electrolyte components · CPC title

• H01M6/5038

  Heating or cooling of cells or batteries · CPC title

• H01M12/065 Primary

  with plate-like electrodes or stacks of plate-like electrodes · CPC title

• H01M4/06

  Electrodes for primary cells · CPC title