Glass-fiber containing composite materials for alkali metal-based batteries and methods of making

Patent metadata

Field	Value
Publication number	US-9065117-B2
Application number	US-98090510-A
Country	US
Kind code	B2
Filing date	Dec 29, 2010
Priority date	Jan 14, 2010
Publication date	Jun 23, 2015
Grant date	Jun 23, 2015

Abstract

Glass-fiber composites are described that include a substrate containing glass fibers and particles in contact with the glass fiber substrate. The particles may include an alkali-metal containing compound. In addition, batteries are described with an anode, a cathode, and an electrolyte. The cathode may include alkali-metal containing nanoparticles in contact with glass fibers. Also describe are methods of making a glass-fiber composite. The methods may include the steps of forming a wet laid non-woven glass fiber substrate, and contacting alkali-metal containing particles on the substrate.

First claim

What is claimed is:

1. A glass fiber substrate comprising glass fibers that include Na 2 FePO 4 F.

2. The glass fiber substrate of claim 1 , wherein the glass fibers comprise nanofibers.

3. The glass fiber substrate of claim 1 , wherein the glass fibers comprise non-woven glass microfibers.

4. A glass-fiber composite comprising:
a substrate comprising glass fibers, wherein the glass fibers comprise Na 2 FePO 4 F; and
lithium-containing nanoparticles bound to a surface of the glass fibers.

5. The composite of claim 4 , wherein the glass fibers comprise non-woven glass microfibers.

6. The composite of claim 4 , wherein the lithium-containing nanoparticles comprise LiFePO 4 .

7. The composite of claim 4 , wherein the glass-fiber composite comprises a cathode of a battery.

8. The composite of claim 4 , wherein the glass fibers comprise nanofibers.

9. A battery comprising:
an anode;
a cathode that includes glass fibers comprising Na 2 FePO 4 F; and
an electrolyte.

10. The battery of claim 9 , wherein the glass fibers comprise glass nanofibers.

11. The battery of claim 9 , wherein the cathode comprises LiFePO 4 .

12. The battery of claim 9 , wherein the anode comprises lithium metal.

13. The battery of claim 9 , wherein the electrolyte comprises a microporous separator membrane containing LiPF 6 .

14. A battery comprising:
an anode;
a cathode comprising lithium-containing nanoparticles bound to a surface of glass fibers, wherein the glass fibers comprise Na 2 FePO 4 F; and
an electrolyte between the anode and the cathode.

15. The battery of claim 14 , wherein the lithium-containing nanoparticles comprise LiFePO 4 .

16. The battery of claim 14 , wherein the anode comprises lithium metal.

17. The battery of claim 14 , wherein the electrolyte comprises a microporous separator membrane containing LiPF 6 .

Assignees

• Nandi Souvik
• Jaffee Alan Michael
• Obernyer Kristin Franz Goya
• Dietz Iii Albert G
• Johns Manville

Inventors

• Nandi Souvik
• Jaffee Alan Michael
• Obernyer Kristin Franz Goya
• Dietz Iii Albert G

Classifications

• H01M4/5825

  Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines · CPC title

• H01M10/054

  Accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium · CPC title

• H01M4/362

  Composites · CPC title

• H01M2/1653

  Electricity · mapped topic

• Y02E60/122

  Cross-Sectional Technologies · mapped topic