Lithium air battery module

Patent metadata

Field	Value
Publication number	US-9263779-B2
Application number	US-201313854511-A
Country	US
Kind code	B2
Filing date	Apr 1, 2013
Priority date	Apr 3, 2012
Publication date	Feb 16, 2016
Grant date	Feb 16, 2016

Abstract

A lithium air battery module including a lithium air battery cell including a first electrolyte; an additional electrolyte disposed non-adjacent the first electrolyte; and a housing which accommodates the lithium air battery cell and the additional electrolyte.

First claim

What is claimed is:

1. A lithium air battery module comprising:
a lithium air battery cell comprising a first electrolyte;
an additional electrolyte disposed outside of and non-adjacent to the lithium air battery cell;
a housing, which accommodates the lithium air battery cell and the additional electrolyte; and
an evaporated electrolyte, which is disposed in the housing,
wherein the additional electrolyte is disposed in an accommodating unit, and wherein the accommodating unit is disposed in the housing and outside of the lithium air battery cell, and
wherein the additional electrolyte maintains a saturated state of the evaporated electrolyte.

2. The lithium air battery module of claim 1 , wherein the first electrolyte and the additional electrolyte each independently comprise at least one selected from an aqueous liquid electrolyte, a non-aqueous liquid electrolyte, and a lithium ion conductive polymer.

3. The lithium air battery module of claim 2 , wherein the non-aqueous liquid electrolyte comprises at least one selected from a carbonate, an ester, an ether, a ketone, an amine, a phosphine, a nitrile, an amide, and a sulfolane.

4. The lithium air battery module of claim 2 , wherein the lithium ion conductive polymer comprises at least one selected from polyethylene oxide, polyacrylonitrile, polyester, polyethylene glycol, polypropylene oxide, polymethyl methacrylate, polydimethylsiloxane, polyvinylpyrrolidone, and polyacrylonitrile.

5. The lithium air battery module of claim 2 , wherein the additional electrolyte does not include a salt.

6. The lithium air battery module of claim 1 , wherein the housing further comprises:
an outlet for discharging air inside the housing; and
a collector for collecting the additional electrolyte from the air.

7. The lithium air battery module of claim 6 , wherein the collector is disposed in the outlet.

8. The lithium air battery module of claim 6 , wherein the collector is effective to collect the additional electrolyte from the air.

9. The lithium air battery module of claim 6 , wherein the collector collects a volatile component of at least one of the first electrolyte and the additional electrolyte.

10. The lithium air battery module of claim 1 , further comprising a flow path which is disposed between a collector and the accommodating unit for moving the additional electrolyte to the accommodating unit.

11. The lithium air battery module of claim 10 , wherein the collector is disposed in an upper part of the housing, and the accommodating unit is disposed in a lower part of the housing.

12. The lithium air battery module of claim 1 ,
wherein the lithium air battery cell comprises a positive electrode, a negative electrode, and the first electrolyte interposed between the positive electrode and the negative electrode, and
wherein the first electrolyte and the additional electrolyte are a same electrolyte.

13. The lithium air battery module of claim 12 , wherein the first electrolyte is a non-aqueous liquid electrolyte.

14. The lithium air battery module of claim 12 , wherein the first electrolyte further comprises at least one selected from an aprotic solvent and water.

15. The lithium air battery module of claim 12 , further comprising a passivation layer interposed between a second electrolyte and the negative electrode.

16. The lithium air battery module of claim 15 , wherein the passivation layer is at least one selected from an inorganic solid electrolyte, a polymer solid electrolyte, a gel polymer electrolyte, and a lithium ion conductive solid electrolyte.

17. The lithium air battery module of claim 15 , further comprising a second electrolyte interposed between the negative electrode and the passivation layer.

18. The lithium air battery module of claim 17 , wherein the second electrolyte comprises a non-aqueous liquid electrolyte comprising an aprotic solvent and lithium salt, an inorganic solid electrolyte, and a polymer solid electrolyte.

19. The lithium air battery module of claim 12 , wherein the positive electrode comprises a porous carbon-based material.

20. The lithium air battery module of claim 1 , wherein the lithium air battery cell is in only evaporative communication with the additional electrolyte.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Lee Dong-Joon
• Im Dong-Min
• Ryu Young-Gyoon
• Roev Victor
• Ma Sang-Bok
• Park Min-Sik

Classifications

• H01M12/08 Primary

  composed of a half-cell of a fuel-cell type and a half-cell of the secondary-cell type · CPC title

• Y02E60/10

  Energy storage using batteries · CPC title

• H01M12/06 Primary

  with one metallic and one gaseous electrode · CPC title