RECHARGEABLE AIR BATTERY AND MANUFACTURING METHOD

• US 20090053594A1
• Filed: 08/23/2007
• Published: 02/26/2009
• Est. Priority Date: 08/23/2007
• Status: Abandoned Application

• Current Assignee: Johnson Ip Holding Llc
• Original Assignee: Johnson Ip Holding Llc
• Inventors: Tamirisa, Prabhakar A., Zhang, Ji-Guang, Johnson, Lonnie G.
• Application Number:
  US11/843,814
• Publication Number:
  US 20090053594A1
• Time in Patent Office: Days
• US Class Current: 429/163
• CPC Class Codes: H01M 10/052 Li-accumulators
• CPC Class Codes: H01M 10/0567 characterised by the additives
• CPC Class Codes: H01M 10/0568 characterised by the solutes
• CPC Class Codes: H01M 12/08 composed of a half-cell of a fuel-cell type and a half-cell of the secondary-cell type
• CPC Class Codes: H01M 4/131 Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• CPC Class Codes: H01M 4/133 Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
• CPC Class Codes: H01M 4/587 for inserting or intercalating light metals
• CPC Class Codes: H01M 4/90 Selection of catalytic material
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

An air battery having an air cathode having a porous carbon based air cathode containing a non-aqueous organic solvent based electrolyte including a lithium salt and an alkylene carbonage additive. The battery also includes a separator loaded with an organic solvent based electrolyte including a lithium salt and an alkylene carbonate additive, a cathode current collector, an anode, an anode current collector, and a housing. The housing contains the cathode, separator, cathode current collector, anode, anode current collector, and a supply of air.

Claims

1. An air battery comprising:

an air cathode;

a separator loaded with an organic solvent based electrolyte including a lithium salt and an alkylene carbonate additive;

a cathode current collector;

an anode;

an anode current collector; and

a housing containing said cathode, said separator, said cathode current collectors said anode, said anode current collector, and a supply of air.

2. The air battery of claim 1 wherein said separator is a polymeric material.

3. The air battery of claim 2 wherein said separator is a porous polymeric material.

4. The air battery of claim 1 wherein said air cathode is loaded with an oxygen reduction catalyst.

5. The air battery of claim 4 wherein said oxygen reduction catalyst is selected from the group consisting of electrolytic manganese dioxide, ruthenium oxide, silver, platinum and iridium.

6. The air battery of claim 1 wherein said lithium salt is selected from the group consisting of lithium hexafluorophosphate, lithium tetrafluoroborate, lithium hexafluoroarsenate, lithium perchlorate, lithium bis(trifluorosulfonyl) imide, lithium triflate, lithium bis(oxalato) borate, lithium tris(pentafluoroethyl) trifluorophosphate, Lithium bromide, and lithium iodide.

7. The air battery of claim 1 wherein said alkylene carbonate additive is selected from the group consisting of vinylene carbonate and butylene carbonate.

8. The air battery of claim 4 wherein the concentration of oxygen reduction catalyst is between 1% and 30% by weight.

9. The air battery of claim 1 wherein said cathode is a carbon based air cathode containing a non-aqueous organic solvent based electrolyte including a lithium salt and an alkylene carbonate additive.

10. The air battery of claim 1 wherein said anode is selected from the group consisting of lithium metal, lithium metal based alloys, and lithium intercalation compounds.

11. The air battery of claim 1 wherein said anode is selected from the group consisting of graphite, MCMB graphite, soft carbon and lithium titanate.

12. An air battery cathode comprising porous carbon based air cathode containing a non-aqueous organic solvent based electrolyte including a lithium salt and an alkylene carbonate additive.

13. The air battery cathode of claim 12 wherein said alkylene carbonate additive is selected from the group consisting of vinylene carbonate and butylene carbonate.

14. The air battery cathode of claim 12 wherein said lithium salt is selected from the group consisting of lithium hexafluorophosphate, lithium tetrafluoroborate, lithium hexafluoroarsenate, lithium perchlorate, lithium bis(trifluorosulfonyl) imide, lithium triflate, lithium bis(oxalato) borate, lithium tris(pentafluoroethyl) trifluorophosphate, Lithium bromide, and lithium iodide.

15. The air battery cathode of claim 14 wherein said alkylene carbonate additive is selected from the group consisting of vinylene carbonate and butylene carbonate.

16. An air battery comprising:

an air cathode having a porous carbon based air cathode containing a non-aqueous organic solvent based electrolyte including a lithium salt and an alkylene carbonage additive;

a separator loaded with an organic solvent based electrolyte including a lithium salt and an alkylene carbonate additive;

a cathode current collector;

an anode;

an anode current collector; and

a housing containing said cathode, said separator, said cathode current collector, said anode, said anode current collector, and a supply of air.

17. The air battery of claim 16 wherein said separator is a polymeric material.

18. The air battery of claim 16 wherein said air cathode includes an oxygen reduction catalyst.

19. The air battery of claim 16 wherein said air cathode is loaded with an oxygen reduction catalyst.

20. The air battery of claim 19 wherein said oxygen reduction catalyst is selected from the group consisting of electrolytic manganese dioxide, ruthenium oxide, silver, platinum and iridium.

21. The air battery of claim 16 wherein said cathode lithium salt and said separator lithium salt are lithium hexafluorophosphate.

22. The air battery of claim 16 wherein said cathode lithium salt and said separator lithium salt are selected from the group consisting of lithium hexafluorophosphate, lithium tetrafluoroborate, lithium hexafluoroarsenate, lithium perchlorate, lithium bis(trifluorosulfonyl) imide, lithium triflate, lithium bis(oxalato) borate, lithium tris(pentafluoroethyl) trifluorophosphate, Lithium bromide, and lithium iodide.

23. The air battery of claim 16 wherein said cathode alkylene carbonate additive and said separator alkylene carbonate additive are selected from the group consisting of vinylene carbonate and butylene carbonate.

24. The air battery of claim 18 wherein said oxygen reduction catalyst is selected from the group consisting of electrolytic manganese dioxide, ruthenium oxide, silver, platinum and iridium.

25. The air battery of claim 16 wherein said anode is selected from the group consisting of lithium metal, lithium metal based alloys, and lithium intercalation compounds.

26. The air battery of claim 16 wherein said anode is selected from the group consisting of graphite, MCMB graphite, soft carbon and lithium titanate.