The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 24, 2021
Filed:
Aug. 08, 2017
Denka Company Limited, Tokyo, JP;
Tatsuya Nagai, Machida, JP;
Shinichiro Osumi, Machida, JP;
Daiki Ikeda, Omuta, JP;
Tetsuya Ito, Machida, JP;
Hiroshi Yokota, Machida, JP;
DENKA COMPANY LIMITED, Tokyo, JP;
Abstract
An object of the present invention is to provide a carbon black for batteries having excellent dispersibility, electron conductivity and oxidation resistance. In addition, an object of the present invention is to provide a low-viscosity conductive composition for an electrode produced using the carbon black, and a low-resistance battery electrode and a battery having excellent high-output characteristics and cycle characteristics produced using the conductive composition. A carbon black for batteries having: BET specific surface area of 50 to 220 m/g; a crystallite diameter (La) of 30 to 42 Å; and a number of COdesorption molecules per unit surface area measured by a temperature-rising desorption gas analysis method (50° C. to 1200° C. of measurement temperature) of 8.0×10to 15.0×10molecules/mis excellent in dispersibility, electron conductivity and oxidation resistance. A conductive composition for a low-viscosity electrode produced using the carbon black, and a low-resistance battery electrode and a battery having excellent high-output characteristics and cycle characteristics produced using the conductive composition can be obtained.