Air battery cell with electrically conductive members and battery pack

Patent metadata

Field	Value
Publication number	US-10164237-B2
Application number	US-201414911395-A
Country	US
Kind code	B2
Filing date	Jun 16, 2014
Priority date	Aug 26, 2013
Publication date	Dec 25, 2018
Grant date	Dec 25, 2018

Abstract

An air battery includes: a cell frame of an insulating material having a bottomed frame shape in which an electrolytic solution and an anode are stored; a cathode that is disposed opposite the anode across the electrolytic solution stored in the cell frame; and a current collecting member that is electrically connected to the anode, wherein the anode and the current collecting member are electrically connected to each other via a plurality of electrically conducting members that penetrate a bottom of the cell frame.

First claim

The invention claimed is:

1. An air battery, comprising:
a cell frame of an insulating material having a frame portion and a bottom portion being integral with and extending inwardly from one end of the frame portion, in which an electrolytic solution and an anode are stored, wherein the bottom portion has a plurality of through holes defined therein;
a cathode that is disposed opposite the anode across the electrolytic solution stored in the cell frame; and
a plurality of current collecting members on one side of the bottom portion of the cell frame opposite the anode, each current collecting member electrically connected to the anode via a respective electrically conducting member extending from the current collecting member through a respective through hole, wherein each electrically conducting member is physically disconnected from other electrically conducting members and electrically connected to the anode, wherein the current collecting member serves as a spacer to form a ventilation space between adjacent air batteries,
wherein each of the plurality of through holes in the bottom portion of the cell frame is an elongated hole extending along a longitude of the bottom portion of the cell frame and each current collecting member is an elongated structure having a pair of legs with a seat portion at the end of each leg.

2. The air battery according to claim 1 , wherein each electrically conducting member is integrally formed with the bottom portion of the cell frame.

3. The air battery according to claim 1 , further comprising:
a sealer disposed between the cell frame and each current collecting member.

4. The air battery according to claim 1 , wherein the anode and each electrically conducting member are electrically connected to each other by an electrically conductive double-sided tape.

5. The air battery according to claim 1 further comprising:
a metal foil disposed between and electrically connecting the anode and each electrically conducting member.

6. The air battery according to claim 1 further comprising:
a metal foil disposed between each current collecting member and the respective electrically conducting member.

7. The air battery according to claim 1 wherein each current collecting member is integrated with the respective electrically conducting member.

8. The air battery according to claim 1 wherein each of the plurality of through holes in the bottom portion of the cell frame where the plurality of electrically conducting members penetrate has a continuous length along a longitude of the bottom portion of the cell frame.

9. The air battery according to claim 1 wherein the plurality of through holes in the bottom portion of the cell frame where the plurality of electrically conducting members penetrate are spaced intermittently along a longitude of the bottom portion of the cell frame.

10. A battery pack, comprising:
a stacked plurality of the air battery according to claim 1 .

11. The air battery of claim 1 , wherein each electrically conducting member extends through a respective through hole such that a surface of each electrically conducting member is flush with an inner surface of the bottom portion of the cell frame.

12. An air battery, comprising:
a cell frame of an insulating material having a frame portion and a bottom portion being integral with and extending inwardly from one end of the frame portion, in which an electrolytic solution and an anode are stored, wherein the bottom portion has a plurality of through holes defined therein;
a cathode that is disposed opposite the anode across the electrolytic solution stored in the cell frame;
a plurality of discrete current collecting members that are positioned on the bottom portion opposite the anode and are electrically connected to the anode through
the plurality of through holes; and
electrically conductive double-sided tape electrically connecting the anode and the plurality of discrete current collecting members,
wherein each of the plurality of through holes in the bottom portion of the cell frame is an elongated hole extending along a longitude of the bottom portion of the cell frame and each current collecting member is an elongated structure having a pair of legs with a seat portion at the end of each leg.

Assignees

• Nissan Motor

Inventors

• Satou Fuminori

Classifications

• H01M50/51

  Connection only in series · CPC title

• H01M50/253

  adapted for specific cells, e.g. electrochemical cells operating at high temperature · CPC title

• H01M50/514

  Methods for interconnecting adjacent batteries or cells · CPC title

• H01M50/209

  adapted for prismatic or rectangular cells (H01M50/216 takes precedence) · CPC title

• H01M50/176

  for prismatic or rectangular cells (H01M50/181 takes precedence) · CPC title