Carbon catalyst, battery electrode and battery

• Main Authors: Kishimoto, Takeaki, Kubota, Yuji, Narizuka, Kumi, Sato, Tetsutaro
• Format: Patent
• Language: English
• Published: 31.05.2022
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; ELECTRICITY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; THEIR RELEVANT APPARATUS; TRANSPORTING

A carbon catalyst has: a carbon structure that exhibits a nitrogen desorption temperature range from 800° C.-1,000° C. of 0.75×10−5 mol/g or more or a nitrogen desorption amount in the range from 600° C. to 1,000° C. of 1.20×10−5 mol/g or more in a temperature programmed desorption method including measuring nitrogen desorption amount temperature range from 600° C.-1,000° C.; a carbon structure exhibits a zeta potential isoelectric point of pH 9.2 or more; or a carbon structure exhibits a ratio of an intensity of a first nitrogen peak within a range of a binding energy of 398.0±1.0 eV, to an intensity of a second nitrogen peak having a peak top within a range of a binding energy of 400.5±1.0 eV, of 0.620 or more, the first and second nitrogen peaks obtained by separating a peak derived from a 1s orbital of a nitrogen atom in a photoelectron spectrum obtained by X-ray photoelectron spectroscopy.