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:
Nov. 25, 2014
Filed:
Oct. 28, 2010
Agathagelos Kyrlidis, Cambridge, MA (US);
Raymond M. Sawka, Westford, MA (US);
Geoffrey D. Moeser, Reading, MA (US);
Pavel A. Kossyrev, Providence, RI (US);
Ned J. Hardman, Albuquerque, NM (US);
Agathagelos Kyrlidis, Cambridge, MA (US);
Raymond M. Sawka, Westford, MA (US);
Geoffrey D. Moeser, Reading, MA (US);
Pavel A. Kossyrev, Providence, RI (US);
Ned J. Hardman, Albuquerque, NM (US);
Cabot Corporation, Boston, MA (US);
Abstract
The present invention, in part, relates to a carbon black having a) a nitrogen BET surface area (BET) of from about 600 m/g to about 2100 m/g, b) a CDBP value in mL/100 g of from about (−2.8+(b*BET)) to about (108+(b*BET)), where b is 0.087 and BET is expressed in m2/g, and c) an apparent density (p, g/cm) of at least about 0.820+q*BET, where q=−2.5×10, as determined at a compressive force (P) of 200 kgf/cmon dry carbon black powder. Energy storage devices, such as electrochemical double layer capacitors (EDLC's), containing the carbon black are also disclosed. Methods for making the carbon blacks and EDLC's made with them are also provided.