Activated carbon, process for producing the same,...

Details Activated carbon, process for producing the same,... Activated carbon, process for producing the same,...

C - Chemistry, Metallurgy

01

B

C01B 31/08 (2006.01) H01G 9/00 (2006.01) H01G 9/058 (2006.01)

Patent

CA 2353770

An object of the invention is to provide activated carbon which is made from granular isotropic pitch and has a large electrostatic capacitance, a process for producing the same, a polarizable electrode, and an electric double layer capacitor. This object can be attained by activated carbon which is made from granular isotropic pitch. This activated carbon can be produced preferably by oxidizing granular isotropic pitch partially, making the pitch infusible and activating the pitch with a chemical agent, by heat treating the granular isotropic pitch and activating the pitch with a chemical agent, or by making granular isotropic pitch infusible, heat-treating the pitch, and activating the pitch with a chemical agent. The activated carbon of the present invention is mixed with a binder and an electroconductive filler to make a polarizable electrode useful for an electric double layer capacitor.

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