Preparation of polymeric resins and carbon materials

• US 9,409,777 B2
• Filed: 02/08/2013
• Issued: 08/09/2016
• Est. Priority Date: 02/09/2012
• Status: Active Grant

• Current Assignee: Group14 Technologies Inc.
• Original Assignee: BASF SE
• Inventors: Geramita, Katharine, Kron, Benjamin, Costantino, Henry R., Feaver, Aaron M., Sakshaug, Avery J., Thompkins, Leah A., Chang, Alan Tzu-Yang
• Primary Examiner(s): Hendrickson, Stuart
• Application Number:
  US13/763,448
• Publication Number:
  US 20130280601A1
• Time in Patent Office: 1,278 Days
• US Class Current: 1/1
• CPC Class Codes: C01B 32/05 Preparation or purification of carbon not covered by groups C01B32/15, C01B32/20, C01B32/25, C01B32/30
• CPC Class Codes: C01B 32/30 Active carbon
• CPC Class Codes: C01B 32/336 characterised by gaseous activating agents
• CPC Class Codes: C08G 8/22 Resorcinol
• CPC Class Codes: H01G 11/34 characterised by carbonisation or activation of carbon
• CPC Class Codes: H01G 11/44 Raw materials therefor, e.g. resins or coal
• 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 10/054 Accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium
• CPC Class Codes: H01M 10/06 Lead-acid accumulators semi-lead accumulators H01M10/20
• CPC Class Codes: H01M 12/06 with one metallic and one gaseous electrode
• CPC Class Codes: H01M 12/08 composed of a half-cell of a fuel-cell type and a half-cell of the secondary-cell type
• CPC Class Codes: H01M 4/133 Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
• CPC Class Codes: H01M 4/14 Electrodes for lead-acid accumulators
• CPC Class Codes: H01M 4/36 Selection of substances as active materials, active masses, active liquids
• CPC Class Codes: H01M 4/587 for inserting or intercalating light metals
• CPC Class Codes: H01M 4/625 Carbon or graphite
• CPC Class Codes: H01M 4/96 Carbon-based electrodes
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02E 60/13 Energy storage using capacitors

Abstract

The present application is directed to methods for preparation of carbon materials. The carbon materials comprise enhanced electrochemical properties and find utility in any number of electrical devices, for example, as electrode material in ultracapacitors or batteries.

Claims

1. A carbon material, wherein the maximum theoretical capacitance of the carbon material is greater than 25 F/cm³ as measured at a current density of 0.5 Amp/g employing an electrolyte comprising tetraethylammonium tetrafluoroborane in acetonitrile, and wherein the carbon material comprises a specific surface area of at least 1,500 m²/g and less than 500 ppm of all atoms having a molecular weight between 11 and 92, as measured by photon induced x-ray emissions.

2. The carbon material of claim 1, wherein the carbon material retains greater than 90% of the maximum theoretical capacitance after incubation at 2.85 V and 85°

C. for 32 h, wherein the capacitance is measured at a current density of 0.5 Amp/g employing an electrolyte comprising tetraethylammonium tetrafluoroborane in acetonitrile.

3. The carbon material of claim 1, wherein the carbon material comprises a maximum theoretical capacitance of greater than 20 F/cm³ after incubation at 2.85 V and 85°

C. for 32 h, wherein the capacitance is measured at a current density of 0.5 Amp/g employing an electrolyte comprising tetraethylammonium tetrafluoroborane in acetonitrile.

4. The carbon material of claim 1, wherein the carbon material has a specific surface area ranging from 1,500 m²/g to 2,000 m²/g.

5. The carbon material of claim 1, wherein the carbon material has a specific surface area ranging from 1,628 m²/g to 1,731 m²/g.

6. The carbon material of claim 1, wherein the carbon material has a pore volume of at least 0.7 cm³/g.

7. The carbon material of claim 1, wherein the carbon material has a pore volume ranging from 0.714 cm³/g to 0.767 cm³/g.

8. The carbon material of claim 1, wherein the carbon material has a mean particle diameter ranging from 5 to 50 microns.

9. The carbon material of claim 1, wherein the carbon material has a mean particle diameter ranging from 5 to 10 microns.

10. A carbon material, wherein the maximum theoretical capacitance of the carbon material is greater than 25 F/cm³ as measured at a current density of 0.5 Amp/g employing an electrolyte comprising tetraethylammonium tetrafluoroborane in acetonitrile, and wherein the carbon material comprises a pore volume of at least 0.7 cm³/g and less than 500 ppm of all atoms having a molecular weight between 11 and 92, as measured by photon induced x-ray emissions.

11. The carbon material of claim 10, wherein the carbon material retains greater than 90% of the maximum theoretical capacitance after incubation at 2.85 V and 85°

C. for 32 h, wherein the capacitance is measured at a current density of 0.5 Amp/g employing an electrolyte comprising tetraethylammonium tetrafluoroborane in acetonitrile.

12. The carbon material of claim 10, wherein the carbon material comprises a maximum theoretical capacitance of greater than 20 F/cm³ after incubation at 2.85 V and 85°

C. for 32 h, wherein the capacitance is measured at a current density of 0.5 Amp/g employing an electrolyte comprising tetraethylammonium tetrafluoroborane in acetonitrile.

13. The carbon material from claim 10, wherein the carbon material has a specific surface area of at least 1,500 m²/g.

14. The carbon material of claim 10, wherein the carbon material has a specific surface area ranging from 1,500 m²/g to 2,000 m²/g.

15. The carbon material of claim 10, wherein the carbon material has a specific surface area ranging from 1,628 m²/g to 1,731 m²/g.

16. The carbon material of claim 10, wherein the carbon material has a pore volume ranging from 0.714 cm³/g to 0.767 cm³/g.

17. The carbon material of claim 10, wherein the carbon material has a mean particle diameter ranging from 5 to 50 microns.

18. The carbon material of claim 10, wherein the carbon material has a mean particle diameter ranging from 5 to 10 microns.