Low Cost Solid State Rechargeable Battery and Method of Manufacturing Same

• US 20090092903A1
• Filed: 08/26/2008
• Published: 04/09/2009
• Est. Priority Date: 08/29/2007
• Status: Abandoned Application

• Current Assignee: Johnson Ip Holding Llc
• Original Assignee: Johnson Ip Holding Llc
• Inventors: Johnson, David, Johnson, Manuel, Buckingham, Steve, Babic, Davorin, Johnson, Lonnie G.
• Application Number:
  US12/198,421
• Publication Number:
  US 20090092903A1
• Time in Patent Office: Days
• US Class Current: 429/322
• CPC Class Codes: H01M 10/0562 Solid materials
• CPC Class Codes: H01M 2300/0068 inorganic
• CPC Class Codes: H01M 2300/0082 Organic polymers
• CPC Class Codes: H01M 4/0471 involving thermal treatment, e.g. firing, sintering, backing particulate active material, thermal decomposition, pyrolysis
• 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 4/1391 of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• CPC Class Codes: H01M 4/485 of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy H01M4/505, H01M4/525 take precedence
• CPC Class Codes: H01M 4/505 of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• CPC Class Codes: H01M 4/525 of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A solid state Li battery and an all ceramic Li-ion battery are disclosed. The all ceramic battery has a solid state battery cathode comprised of a mixture of an active cathode material, an electronically conductive material, and a solid ionically conductive material. The cathode mixture is sintered. The battery also has a solid state battery anode comprised of a mixture of an active anode material, an electronically conductive material, and a solid ionically conductive material. The anode mixture is sintered. The battery also has a solid state separator positioned between said solid state battery cathode and said solid state battery anode. In the solid state Li battery the all ceramic anode is replaced with an evaporated thin film Li metal anode.

Claims

1. A solid state battery cathode comprising a mixture of an active cathode material, an electronically conductive material, and a solid ionically conductive material, said mixture of said active cathode material, said electronically conductive material and said ionically conductive material being sintered.

2. The solid state battery cathode of claim 1 wherein said solid ionically conductive material is a lithium based electrolyte.

3. The solid state battery cathode of claim 2 wherein said lithium based electrolyte is selected from the group consisting of lithium lanthanum titanate, lithium lanthanum zirconate and lithium phthalocyanine.

4. The solid state battery cathode of claim 1 wherein said active cathode material is a lithium intercalation material.

5. The solid state battery cathode of claim 4 wherein said lithium intercalation material is selected from the group consisting of lithium nickel cobalt manganese oxide, lithium nickel oxide, lithium cobalt oxide, lithium titanium oxide and lithium manganese oxide.

6. A solid state battery anode comprising a mixture of an active anode material, an electronically conductive material, and a solid ionically conductive material, said active anode material, said electronically conductive material and said ionically conductive material being sintered.

7. The solid state battery anode of claim 6 wherein said solid ionically conductive material is a lithium based electrolyte.

8. The solid state battery anode of claim 7 wherein said lithium based electrolyte is selected from the group consisting of lithium lanthanum titanate, lithium lanthanum zirconate and lithium phthalocyanine.

9. The solid state battery anode of claim 6 wherein said active anode material is a lithium intercalation material.

10. The solid state battery anode of claim 9 wherein said lithium intercalation material is lithium titanate.

11. A solid state all ceramic battery comprising,

solid state battery cathode comprising a mixture of an active cathode material, an electronically conductive material, and a solid ionically conductive material, said active cathode material, said electronically conductive material and said ionically conductive material being sintered,

solid state battery anode comprising a mixture of an active anode material, an electronically conductive material, and a solid ionically conductive material, said active anode material, said electronically conductive material and said ionically conductive material being sintered, and

a solid state separator positioned between said solid state battery cathode and said solid state battery anode.

12. The solid state all ceramic battery of claim 11 wherein said cathode solid ionically conductive material is a lithium based electrolyte.

13. The solid state all ceramic battery of claim 12 wherein said cathode lithium based electrolyte is selected from the group consisting of lithium lanthanum titanate, lithium lanthanum zirconate and lithium phthalocyanine.

14. The solid state all ceramic battery of claim 11 wherein said cathode active cathode material is a lithium intercalation material.

15. The solid state all ceramic battery of claim 14 wherein said cathode active cathode material lithium intercalation material is selected from the group consisting of lithium nickel cobalt manganese oxide, lithium nickel oxide, lithium cobalt oxide, and lithium manganese oxide.

16. The solid state all ceramic battery of claim 11 wherein said anode solid ionically conductive material is a lithium based electrolyte.

17. The solid state all ceramic battery of claim 12 wherein said anode lithium based electrolyte is selected from the group consisting of lithium lanthanum titanate, lithium lanthanum zirconate and lithium phthalocyanine.

18. The solid state all ceramic battery of claim 11 wherein said anode active anode material is a lithium intercalation material.

19. The solid state all ceramic battery of claim 18 wherein said anode active anode material lithium intercalation material is lithium titanate.

20. The solid state all ceramic battery of claim 13 wherein said anode solid ionically conductive material is a lithium based electrolyte.

21. The solid state all ceramic battery of claim 20 wherein said lithium based electrolyte is selected from the group consisting of lithium lanthanum titanate, lithium lanthanum zirconate and lithium phthalocyanine.

22. A method of forming a solid state battery cathode comprising the steps of:

(a) providing a quantity of an active cathode material;

(b) providing a quantity of an electronically conductive material;

(c) providing a quantity of a solid ionically conductive material;

(d) mixing the active cathode material, the electronically conductive material and the ionically conductive material, and

(e) sintering the mixture of the active cathode material, the electronically conductive material and the ionically conductive material being sintered.

23. The method of claim 22 wherein step (c) said solid ionically conductive material is a lithium based electrolyte.

24. The method of claim 23 wherein step (c) the lithium based electrolyte is selected from the group consisting of lithium lanthanum titanate, lithium lanthanum zirconate and lithium phthalocyanine.

25. A method of forming a solid state battery anode comprising the steps of:

(a) providing a quantity of an active anode material;

(b) providing a quantity of an electronically conductive material;

(c) providing a quantity of a solid ionically conductive material;

(d) mixing the active anode material, the electronically conductive material and the ionically conductive material, and

(e) sintering the mixture of the active anode material, the electronically conductive material and the ionically conductive material.

26. The method of claim 25 wherein step (c) the solid ionically conductive material is a lithium based electrolyte.

27. The method of claim 26 wherein step (c) the lithium based electrolyte is selected from the group consisting of lithium lanthanum titanate, lithium lanthanum zirconate and lithium phthalocyanine.