Hybrid Rechargeable Battery

• US 20160211547A1
• Filed: 01/15/2015
• Published: 07/21/2016
• Est. Priority Date: 01/15/2015
• Status: Abandoned Application

• Current Assignee: Google LLC (Alphabet Inc.)
• Original Assignee: Google Inc. (Alphabet Inc.)
• Inventors: Hwang, Tai Sup, Bhardwaj, Ramesh C., Devan, Sheba
• Application Number:
  US14/597,858
• Publication Number:
  US 20160211547A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H01M 10/0525 Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
• CPC Class Codes: H01M 10/056 characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
• CPC Class Codes: H01M 10/0562 Solid materials
• CPC Class Codes: H01M 10/0565 Polymeric materials, e.g. gel-type or solid-type
• CPC Class Codes: H01M 10/4235 Safety or regulating additives or arrangements in electrodes, separators or electrolyte H01M10/4242 takes precedence
• CPC Class Codes: H01M 2300/0068 inorganic
• CPC Class Codes: H01M 2300/0082 Organic polymers
• CPC Class Codes: H01M 2300/0085 Immobilising or gelification of electrolyte
• CPC Class Codes: H01M 2300/0094 in the form of layered products, e.g. coatings
• 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 4/134 Electrodes based on metals, Si or alloys
• CPC Class Codes: H01M 4/366 as layered products
• CPC Class Codes: H01M 4/382 Lithium H01M4/405 takes precedence
• 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: H01M 4/587 for inserting or intercalating light metals
• CPC Class Codes: H01M 50/417 Polyolefins
• CPC Class Codes: H01M 50/451 comprising layers of only organic material and layers containing inorganic material
• CPC Class Codes: H01M 50/46 Separators, membranes or diaphragms characterised by their combination with electrodes
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02P 70/50 : Manufacturing or production processes characterised by the final manufactured product

Abstract

The present disclosure relates to a battery incorporating a hybrid gel/solid electrolyte. In an example embodiment, a battery may include a copper anode current collector, a lithium metal anode, a lithium phosphorous oxynitride (LiPON) anode protector, an electrolyte, a lithium cobalt oxide (LiCoO2) cathode, and an aluminum cathode current collector. The electrolyte may include a gel electrolyte, a solid electrolyte, and a separator. The separator includes an insulating material layer disposed between a first gel electrolyte layer and a second gel electrolyte layer. In some embodiments, the insulating material may include polyethylene and the gel electrolyte layer may include a liquid and a polymer. Alternatively or additionally, the solid material may include a filler material, which may include silica and a polymer.

Claims

1. A battery comprising:

an anode current collector;

an anode, wherein the anode is disposed on the anode current collector;

an electrolyte comprising a gel electrolyte and a solid material, wherein the electrolyte is disposed on the anode;

a cathode, wherein the cathode is disposed on the electrolyte; and

a cathode current collector, wherein the cathode current collector is disposed on the cathode.

2. The battery of claim 1 wherein the electrolyte comprises a solid electrolyte and a separator, wherein the separator comprises an insulating material layer disposed between a first gel electrolyte layer and a second gel electrolyte layer, and wherein the separator is disposed on the solid electrolyte.

3. The battery of claim 2 wherein the insulating material layer comprises polyethylene and wherein the first gel electrolyte layer and the second gel electrolyte layer comprise a liquid and a polymer.

4. The battery of claim 3 wherein the separator is formed by coating a first side of the insulating material layer with the first gel electrolyte layer and coating a second side of the insulating material layer with the second gel electrolyte layer before the electrolyte is disposed onto the solid electrolyte.

5. The battery of claim 1 wherein the solid electrolyte comprises at least one of Li-Sulfide-Glass, Li_2+2xZn₁₋

xGeO₄ (LISICON), and a garnet-type solid electrolyte.

6. The battery of claim 1 wherein the cathode comprises lithium cobalt oxide (LiCoO₂), wherein anode comprises lithium metal (Li) and lithium phosphorous oxynitride (LiPON), and wherein the LiPON is disposed between the Li and the electrolyte.

7. The battery of claim 1 wherein the cathode comprises a lithium cobalt oxide (LiCoO₂) and wherein anode comprises lithium metal (Li).

8. The battery of claim 1 wherein the solid material comprises a solid electrolyte material and wherein the electrolyte comprises the solid electrolyte material disposed between a first gel electrolyte layer and a second gel electrolyte layer.

9. The battery of claim 1 wherein the solid material comprises a filler material and wherein the electrolyte comprises at least a composition of the gel electrolyte and the filler material.

10. The battery of claim 9 wherein the filler material comprises silica.

11. The battery of claim 1 wherein the anode current collector is disposed on a substrate, and wherein the anode current collector and the cathode current collector comprise at least one of a metal, carbon nanotubes, and metal nanowires.

12. A method comprising:

forming an anode current collector layer on a substrate;

forming an anode layer on the anode current collector layer;

forming an electrolyte layer on the anode layer, wherein the electrolyte layer comprises a gel electrolyte and a solid material;

forming a cathode layer on the electrolyte layer; and

forming a cathode current collector layer on the cathode.

13. The method of claim 12 wherein the electrolyte layer comprises a solid electrolyte and a separator, wherein the separator comprises an insulating material layer disposed between a first gel electrolyte layer and a second gel electrolyte layer, wherein the separator is disposed on the solid electrolyte, and wherein the solid electrolyte is disposed on the anode layer.

14. The method of claim 13 wherein the insulating material layer comprises polyethylene and wherein the gel electrolyte layer comprises a liquid and a polymer.

15. The method of claim 12 wherein the electrolyte layer comprises at least one of Li-Sulfide-Glass, Li_2+2xZn₁₋

xGeO₄ (LISICON), and a garnet-type solid electrolyte.

16. The method of claim 12 wherein the cathode comprises a lithium cobalt oxide (LiCoO₂), wherein anode comprises lithium metal (Li) and lithium phosphorous oxynitride (LiPON), and wherein the LiPON is disposed between the Li and the electrolyte.

17. The method of claim 12 wherein the solid material comprises a solid electrolyte material and wherein the electrolyte comprises the solid electrolyte material disposed between a first gel electrolyte layer and a second gel electrolyte layer.

18. The method of claim 12 wherein the solid material comprises a filler material, wherein the electrolyte comprises at least a composition of the gel electrolyte and the filler material, wherein the filler material comprises silica, wherein the composition is disposed on the anode, and wherein the composition is disposed on the anode by a rotogravure process.

19. A battery comprising:

an anode current collector disposed on a substrate, wherein the anode current collector comprises copper (Cu);

an anode, wherein the anode is disposed on the anode current collector, and wherein the anode comprises lithium metal (Li);

an anode protector, wherein the anode protector is disposed on the anode, and wherein the anode protector comprises lithium phosphorous oxynitride (LiPON);

an electrolyte comprising a gel electrolyte, a solid electrolyte, and a separator, wherein the electrolyte is disposed on the anode protector, wherein the separator comprises an insulating material layer disposed between a first gel electrolyte layer and a second gel electrolyte layer, and wherein the separator is disposed on the solid electrolyte;

a cathode, wherein the cathode is disposed on the electrolyte, wherein the cathode comprises lithium cobalt oxide (LiCoO₂); and

a cathode current collector, wherein the cathode current collector is disposed on the cathode, and wherein the cathode current collector comprises aluminum (Al).

20. The battery of claim 19, wherein the insulating material layer comprises polyethylene and wherein the gel electrolyte layer comprises a liquid and a polymer.