Activated carbon material, and production method and use thereof
AssigneeShowa Denko K.K.
InventorsMasako Tanaka, Yasuo Saito
Life of this patent
Estimating the term…
Abstract
An activated carbon material having a BET specific surface area of 10 to 1,000 m2/g as measured by means of a nitrogen adsorption method, and the ratio of the height of the D peak (1,360 cm−1) of a Raman spectrum of the activated carbon material to that of the G peak (1,580 cm−1) of the Raman spectrum is 0.8 to 1.2. When the activated carbon material of the present invention is used as a polarizable electrode material of an electric double layer capacitor, high capacitance per electrode is attained without application of excessive voltage.
Claims9
An activated carbon material having a BET specific surface area of 173 to 1,000 m2/g as measured by means of a nitrogen adsorption method, and the ratio of the height of the D peak (1,360 cm−1) of a Raman spectrum of the activated carbon material to that of the G peak (1,580 cm −1) of the Raman spectrum is 0.8 to 0.93, and wherein pores of the activated carbon material having a size of 20 to 50 Å as measured by means of a BJH method employing nitrogen adsorption have a pore volume of at least 0.02 ml/g.
Dependencies are inferred from the claim text.