IP Library › Granted Patent US 8,192,870
Granted Patent B2
US 8,192,870 · App. 12/208,706 · Granted Jun 5, 2012

Supercapacitor and battery electrode containing thermally exfoliated graphite oxide

Assignee: The Trustees of Princeton University
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Quick Facts
Patent No.
US 8,192,870
App. No.
12/208,706
Granted
Jun 5, 2012
Kind
B2
Abstract

A supercapacitor or battery electrode containing a modified graphite oxide material, which is a thermally exfoliated graphite oxide with a surface area of from about 300 m 2 /g to 2600 m 2 /g.

Claims (15)

1. A supercapacitor, comprising a modified graphite oxide material, comprising thermally exfoliated graphite oxide having a surface area of from about 400 m 2 /g to 2600 m 2 /g.

2. The supercapacitor of claim 1 , wherein the thermally exfoliated graphite oxide has a surface area of from about 500 m 2 /g to 2600 m 2 /g.

3. The supercapacitor of claim 1 , wherein the thermally exfoliated graphite oxide has a bulk density of from about 40 kg/m 3 to 0.1 kg/m 3 .

4. The supercapacitor of claim 1 , wherein the thermally exfoliated graphite oxide has a C/O ratio of from about 60/40 to 95/5.

5. The supercapacitor of claim 4 , wherein the thermally exfoliated graphite oxide has a C/O ratio of from about 65/35 to 85/15.

6. The supercapacitor of claim 1 , wherein the thermally exfoliated graphite oxide has a surface area of from about 400 m 2 /g to 1100 m 2 /g.

7. A battery electrode, comprising a modified graphite oxide material, comprising thermally exfoliated graphite oxide having a surface area of from about 400 m 2 /g to 2600 m 2 /g.

8. The battery electrode of claim 7 , wherein the thermally exfoliated graphite oxide has a surface area of from about 500 m 2 /g to 2600 m 2 /g.

9. The battery electrode of claim 7 , wherein the thermally exfoliated graphite oxide has a bulk density of from about 40 kg/m 3 to 0.1 kg/m 3 .

10. The battery electrode of claim 7 , wherein the thermally exfoliated graphite oxide has a C/O ratio of from about 60/40 to 95/5.

11. The battery electrode of claim 7 , wherein the thermally exfoliated graphite oxide has a C/O ratio of from about 65/35 to 85/15.

12. The battery electrode of claim 7 , wherein the thermally exfoliated graphite oxide has a surface area of from about 400 m 2 /g to 1100 m 2 /g.

13. The battery electrode of claim 7 , made from a dispersion of the thermally exfoliated graphite oxide.

14. The battery electrode of claim 7 , made from a paste of the thermally exfoliated graphite oxide.

15. The battery electrode of claim 7 , in the form of a flat surface electrode.

Assignments (6)
CONFIRMATORY LICENSE Recorded Jul 5, 2012
From: PRINCETON UNIVERSITY
To: NATIONAL SCIENCE FOUNDATION
Reel/Frame 028501/0668 →
CONFIRMATORY LICENSE Recorded May 19, 2010
From: PRINCETON UNIVERSITY
To: NATIONAL SCIENCE FOUNDATION
Reel/Frame 024410/0620 →
CONFIRMATORY LICENSE Recorded May 18, 2010
From: PRINCETON UNIVERSITY
To: NATIONAL SCIENCE FOUNDATION
Reel/Frame 024400/0739 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 9, 2009
From: PRINCETON UNIVERSITY
To: THE TRUSTEES OF PRINCETON UNIVERSITY
Reel/Frame 023626/0204 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 23, 2009
From: AKSAY, ILHAN A.; YEH, TED CHAO-HUNG; SAVILLE, DUDLEY AS REPRESENTED BY HEIR, SAVILLE, JOY
To: THE TRUSTEES OF PRINCETON UNIVERSITY
Reel/Frame 022148/0141 →
LICENSE Recorded Dec 4, 2008
From: PRINCETON UNIVERSITY
To: UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION
Reel/Frame 021944/0633 →
Continuity (2)
Continuation 11249404 · Oct 14, 2005
Related Publication 20090123843A1 · May 14, 2009