Air cell and assembled battery employing same

Patent metadata

Field	Value
Publication number	US-2016013528-A1
Application number	US-201314377210-A
Country	US
Kind code	A1
Filing date	Feb 6, 2013
Priority date	Feb 7, 2012
Publication date	Jan 14, 2016
Grant date	—

Abstract

In air cells which are stacked on one another and used as an assembled battery, an electrolytic solution layer is formed between a positive electrode material and a negative electrode material, and one or two or more deformation prevention materials are arranged for preventing deformation by abutting the positive electrode material or the negative electrode material or abutting both of them.

First claim

1 . An air cell, a plurality of the air cell being stacked on one another and used as an assembled battery, wherein:
in an electrolytic solution layer formed between a positive electrode material and a negative electrode material, one or more deformation prevention materials are configured to prevent deformation by abutting one or both of the positive electrode material or the negative electrode material; and a flow allowable part configured to allow flow of an electrolytic solution and abutting at least one of the positive electrode material and the negative electrode material and is formed on an end face of the one or more deformation prevention materials.

2 . The air cell according to claim 1 , wherein
the one or more deformation prevention materials are arranged within an outer frame material which surrounds the electrolytic solution layer so that an electrolytic solution space within the outer frame material is partitioned.

3 . The air cell according to claim 1 , wherein
hydrophilic processing is performed on a face of the one or more deformation prevention materials abutting the positive electrode material.

4 . The air cell according to claim 1 , wherein
a primary flow axis of the electrolytic solution injected from outside is configured so as not to be parallel to a normal line of a virtual plane defined by the one or more deformation prevention materials.

5 . The air cell according to claim 1 , wherein
a plurality of electrolytic solution communication parts is formed in the one or more deformation prevention materials configured to circulate for circulating the electrolytic solution in electrolytic solution spaces which are partitioned and formed on both sides of the one or more deformation prevention materials.

6 . The air cell according to claim 5 , wherein
at least one of the one or more deformation prevention materials is formed of a porous material capable of circulating the electrolytic solution in both of the electrolytic solution spaces which are partitioned and formed on both sides of the one or more deformation prevention materials.

7 . The air cell according to claim 5 , wherein
injection holes for injecting the electrolytic solution are formed in one or more of the electrolytic solution spaces which are defined and formed by the one or more deformation prevention materials.

8 . The air cell according to claim 1 , wherein
the one or more deformation prevention materials is formed of general purpose resin such as polypropylene, fluorine resin, acryl, vinylchloride, vinylidenechloride, polyisobutylene, polyetherchloride, furan resin, epoxy resin, and nylon, or super engineering plastic such as polyphenylene-sulfide and polyether-etherketon.

9 . The air cell according to claim 1 , wherein
a plurality of flow paths for circulating air is formed in parallel to one another in a liquid-tight breathable membrane which is stacked and formed on the positive electrode material, and arranged so that a direction of the plurality of flow paths and the one or more deformation prevention materials of a frame body cross each other.

10 . The air cell according to claim 2 , wherein
the one or more deformation materials is two deformation materials; a second deformation prevention material for further partitioning the electrolytic solution space that is partitioned by a first deformation prevention material is formed; and an electrolytic solution circulation part is formed on the second deformation prevention material for circulating the electrolytic solution in the electrolytic solution spaces partitioned by the second deformation prevention material.

11 . The air cell according to claim 1 , wherein
a current collector plate is arranged neighboring the negative electrode material, and any one of the one or more deformation prevention materials abuts the current collector plate directly.

12 . The air cell according to claim 1 , wherein
the flow allowable part has a plurality of minute convex parts.

13 . An assembled battery, wherein
the air cells according to claim 1 are stacked on one another.

Assignees

• Nissan Motor

Inventors

• Miyazawa Atsushi
• Iritsuki Keita
• Himeno Tomokatsu
• Nagayama Mori
• Tsukada Yoshiko

Classifications

• H01M12/065 Primary

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

• H01M8/2459

  Comprising electrode layers with interposed electrolyte compartment with possible electrolyte supply or circulation · CPC title

• H01M6/32

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

• H01M12/06 Primary

  with one metallic and one gaseous electrode · CPC title

• H01M6/42

  Grouping of primary cells into batteries (H01M6/40 takes precedence) · CPC title