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.

Date of Patent:
Jun. 14, 2016

Filed:

Mar. 13, 2015
Applicant:

Nippon Chemi-con Corporation, Tokyo, JP;

Inventors:

Katsuhiko Naoi, Tokyo, JP;

Wako Naoi, Tokyo, JP;

Shuichi Ishimoto, Tokyo, JP;

Kenji Tamamitsu, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/13 (2010.01); H01M 4/485 (2010.01); B82Y 30/00 (2011.01); B82Y 40/00 (2011.01); C01B 31/02 (2006.01); C01G 23/00 (2006.01); H01M 4/131 (2010.01); H01M 4/36 (2006.01); H01M 4/587 (2010.01); H01G 9/035 (2006.01); H01G 11/06 (2013.01); H01G 11/50 (2013.01); H01G 11/24 (2013.01); H01G 11/30 (2013.01); H01G 11/36 (2013.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/485 (2013.01); B82Y 30/00 (2013.01); B82Y 40/00 (2013.01); C01B 31/0253 (2013.01); C01G 23/005 (2013.01); H01G 9/035 (2013.01); H01G 11/06 (2013.01); H01G 11/24 (2013.01); H01G 11/30 (2013.01); H01G 11/50 (2013.01); H01M 4/131 (2013.01); H01M 4/364 (2013.01); H01M 4/366 (2013.01); H01M 4/587 (2013.01); C01P 2004/03 (2013.01); C01P 2004/04 (2013.01); C01P 2004/64 (2013.01); C01P 2006/12 (2013.01); C01P 2006/40 (2013.01); H01G 11/36 (2013.01); H01M 2004/027 (2013.01); Y02E 60/122 (2013.01); Y02E 60/13 (2013.01); Y02P 70/54 (2015.11); Y10S 977/773 (2013.01); Y10S 977/784 (2013.01); Y10S 977/811 (2013.01); Y10S 977/892 (2013.01); Y10S 977/896 (2013.01); Y10T 428/2918 (2015.01); Y10T 428/2982 (2015.01);
Abstract

Highly dispersed lithium titanate crystal structures having a thickness of few atomic layers level and the two-dimensional surface in a plate form are supported on carbon nanofiber (CNF). The lithium titanate crystal structure precursors and CNF that supports these are prepared by a mechanochemical reaction that applies sheer stress and centrifugal force to a reactant in a rotating reactor. The mass ratio between the lithium titanate crystal structure and carbon nanofiber is preferably between 75:25 and 85:15. The carbon nanofiber preferably has an external diameter of 10-30 nm and an external specific surface area of 150-350 cm/g. This composite is mixed with a binder and then molded to obtain an electrode, and this electrode is employed for an electrochemical element.


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