Porous carbon material and method for manufacturing porous carbon material

Patent metadata

Field	Value
Publication number	US-10270082-B2
Application number	US-201515322944-A
Country	US
Kind code	B2
Filing date	Jun 26, 2015
Priority date	Jul 3, 2014
Publication date	Apr 23, 2019
Grant date	Apr 23, 2019

Abstract

The present invention relates to a porous carbon material having a co-continuous structure forming portion in which carbon skeletons and voids form continuous structures, respectively and which has a structural period of 0.002 μm to 3 μm, having pores which have an average diameter of 0.01 to 10 nm on a surface thereof, and having a BET specific surface area of 100 m2/g or more.

First claim

The invention claimed is:

1. A porous carbon material having a co-continuous structure portion in which carbon skeletons and voids form continuous structures, respectively and which has a structural period of 0.002 μm to 3 μm, having pores which have an average diameter of 0.01 to 10 nm on a surface of the carbon skeletons in the co-continuous structure portion, and having a BET specific surface area of 100 m 2 /g or more.

2. The porous carbon material according to claim 1 , wherein a pore volume measured by an MP method is 0.1 cm 3 /g or more.

3. The porous carbon material according to claim 2 , wherein the pore volume measured by an MP method is 1.5 cm 3 /g or more.

4. The porous carbon material according to claim 1 , wherein the BET specific surface area is 1,000 m 2 /g or more.

5. The porous carbon material according to claim 1 , having a portion having substantially no co-continuous structure.

6. An electrode material using the porous carbon material according to claim 1 .

7. An adsorption material using the porous carbon material according to claim 1 .

8. A process for producing the porous carbon material according to claim 1 , the process comprising:
step 1: a step of bringing 10 to 90% by weight of a carbonizable resin and 90 to 10% by weight of an eliminable resin into a compatibly mixed state to obtain a resin mixture;
step 2: a step of causing the resin mixture to undergo phase separation by a method not accompanied with a chemical reaction, and fixing the separated phases;
step 3: a step of performing carbonization by pyrolysis; and
step 4: a step of activation,
in this order.

9. The process for producing a porous carbon material according to claim 8 , wherein an infusibilizing treatment is further performed after the step 2.

10. The process for producing a porous carbon material according to claim 8 , wherein, in the step 4, the activation is performed with an alkaline chemical.

11. The process for producing a porous carbon material according to claim 8 , wherein a pulverization treatment is further performed after the step 3 and before or after the step 4.

12. The porous carbon material according to claim 1 , wherein the average diameter of the pores is 0.01 to 2 nm.

Assignees

• Toray Industries

Inventors

• Horiguchi Tomoyuki
• Tanaka Kentaro
• Takeuchi Kosaku
• Mihara Takaaki

Classifications

• C01B32/05 Primary

  Preparation or purification of carbon not covered by groups C01B32/15, C01B32/20, C01B32/25, C01B32/30 · CPC title

• B01J20/28

  characterised by their form or physical properties · CPC title

• H01M4/587

  for inserting or intercalating light metals · CPC title

• Y02E60/13

  Energy storage using capacitors · CPC title

• B01J20/20 Primary

  comprising free carbon; comprising carbon obtained by carbonising processes · CPC title