SURFACE MODIFIED GLASS FIBERS

• US 20110287324A1
• Filed: 08/05/2010
• Published: 11/24/2011
• Est. Priority Date: 05/21/2010
• Status: Abandoned Application

• Current Assignee: Hollingsworth & Vose Company
• Original Assignee: Hollingsworth & Vose Company
• Inventors: Zguris, George C., Rajaram, Mohan
• Application Number:
  US12/851,107
• Publication Number:
  US 20110287324A1
• Time in Patent Office: Days
• US Class Current: 429/246
• CPC Class Codes: C03C 13/00 Fibre or filament compositions manufacture of fibres or filaments C03B37/00
• CPC Class Codes: C03C 25/00 Surface treatment of fibres or filaments made from glass, minerals or slags
• CPC Class Codes: H01M 10/06 Lead-acid accumulators semi-lead accumulators H01M10/20
• CPC Class Codes: H01M 10/10 Immobilising of electrolyte
• CPC Class Codes: H01M 50/417 Polyolefins
• CPC Class Codes: H01M 50/423 Polyamide resins
• CPC Class Codes: H01M 50/426 Fluorocarbon polymers
• CPC Class Codes: H01M 50/429 Natural polymers
• CPC Class Codes: H01M 50/4295 Natural cotton, cellulose or wood
• CPC Class Codes: H01M 50/434 Ceramics
• CPC Class Codes: H01M 50/437 Glass
• CPC Class Codes: H01M 50/44 Fibrous material
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A composition including glass fibers with a surface atomic concentration of oxygen in sp3 bonds with silicon of at least about 34% wherein the fibers are formed into a battery separator.

Claims

1. A composition comprising

glass fibers with a surface atomic concentration of oxygen in sp3 bonds with silicon of at least about 34%;

wherein the fibers are in the form of a battery separator.

2. The composition of claim 1, wherein the concentration of oxygen in sp3 bonds with silicon is measured by XPS.

3. The composition of claim 1, wherein the fibers comprise between about 50 weight percent to about 75 weight percent silica, between about 1 weight percent to about 5 weight percent aluminum oxide, and less than about 25 weight percent sodium oxide.

4. The composition of claim 1, wherein the atomic concentration of oxygen in sp3 bonds with silicon is measured to a depth of between about 100 and 150 Angstroms from the surface of the fiber.

5. The composition of claim 1, wherein the surface atomic concentration of oxygen in sp3 bonds with silicon is at least about 35%.

6. The composition of claim 1, wherein the surface atomic concentration of oxygen in sp3 bonds with silicon is at least about 36%.

7. The composition of claim 1, wherein the surface atomic concentration of oxygen in sp3 bonds with silicon is at least about 37%.

8. The composition of claim 1, wherein the surface atomic concentration of oxygen in sp3 bonds with silicon is at least about 38%.

9. The composition of claim 1, wherein the surface atomic concentration of oxygen in sp3 bonds with silicon is at least about 39%.

10. The composition of claim 1, wherein the atomic concentration of oxygen bonded with silicon is at least about 56 percent.

11. The composition of claim 1, wherein the atomic concentration of oxygen bonded with silicon is at least about 58 percent.

12. The composition of claim 1, wherein the atomic concentration of oxygen bonded with silicon is at least about 60 percent.

13. The composition of claim 1, wherein the atomic concentration of oxygen bonded with silicon is at least about 62 percent.

14. The composition of claim 1, wherein the atomic concentration of oxygen bonded with silicon is at least about 64 percent.

15. The composition of claim 1, wherein the fibers comprise between about 60 weight percent and about 70 weight percent silica.

16. The composition of claim 1, wherein the fibers comprise between about 0.5 weight percent and about 30 weight percent bismuth oxide.

17. The composition of claim 1, wherein the fibers have an average diameter between about 0.6 μ

m and about 8 μ

m.

18. The composition of claim 17, wherein the fibers have an average diameter between about 0.7 μ

m and about 1.5 μ

m.

19. The composition of claim 1, wherein the fibers have an average diameter between about 2.5 μ

m and about 10 μ

m.

20. The composition of claim 1, wherein the battery separator has an average thickness between about 0.25 mm and about 4 mm, before placement in a battery.

21. The composition of claim 1, wherein the battery separator has a surface area between about 1.0 m2/g and about 2.5 m2/g.

22. The composition of claim 1, wherein the battery separator has a surface area between about 1.3 m2/g and about 1.6 m2/g.

23. The composition of claim 1, wherein the battery separator further comprises organic fibers.

24. The composition of claim 23, wherein the battery separator further comprises bi-component fibers.

25. The composition of claim 1, wherein the battery separator has a grammage of between about 15 gsm and about 100 gsm.

26. The composition of claim 1, wherein the battery separator has a grammage of between about 140 gsm and about 500 gsm.

27. A battery, comprising:

a first electrode;

a second electrode, wherein at least one of the first and second electrodes comprises lead;

a separator between the first and second electrodes, wherein the separator comprises

glass fibers with a surface atomic concentration of oxygen in sp3 bonds with silicon of at least about 34%; and

an electrolytic solution.

28. The battery of claim 27, wherein the concentration of oxygen in sp3 bonds with silicon is measured by XPS.

31. The battery of claim 27, wherein the surface atomic concentration of oxygen in sp3 bonds with silicon is at least about least about 35%.

32. The battery of claim 27, wherein the surface atomic concentration of oxygen in sp3 bonds with silicon is at least about least about 36%.

33. The battery of claim 27, wherein the surface atomic concentration of oxygen in sp3 bonds with silicon is at least about least about 37%.

34. The battery of claim 27, wherein the surface atomic concentration of oxygen in sp3 bonds with silicon is at least about least about 38%.

35. The battery of claim 28, wherein the surface atomic concentration of oxygen in sp3 bonds with silicon is at least about least about 39%.

36. The battery of claim 27, wherein the atomic concentration of oxygen bonded with silicon is at least about 56 percent

29-30. -30. (canceled)

37-47. -47. (canceled)

48. A composition comprising

glass fibers with a surface atomic concentration of oxygen in sp3 bonds with silicon of at least about 34%;

wherein the fibers are in the form of pasting paper.

49. The composition of claim 48, wherein the concentration of oxygen in sp3 bonds with silicon is measured by XPS.