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:
Feb. 18, 2014
Filed:
Aug. 27, 2008
Tomoyuki Sotokawa, Kusatsu, JP;
Nariaki Moriyama, Yokkaichi, JP;
Masatoshi Honma, Yokkaichi, JP;
Tokuo Suita, Kusatsu, JP;
Tomoyuki Sotokawa, Kusatsu, JP;
Nariaki Moriyama, Yokkaichi, JP;
Masatoshi Honma, Yokkaichi, JP;
Tokuo Suita, Kusatsu, JP;
Ishihara Sangyo Kaisha, Ltd., Osaka, JP;
Abstract
This invention provides a titanic acid compound-type electrode active material having a high battery capacity and, at the same time, having excellent cycle characteristics. The titanic acid compound exhibits an X-ray diffraction pattern corresponding to a bronze-type titanium dioxide except for a peak for a (200) plane and having a peak intensity ratio between the (001) plane and the (200) plane, i.e., I/I, of not more than 0.2. The titanic acid compound may be produced by heat dehydrating HTiOat a temperature in the range of 200 to 330° C., by heat dehydrating HTiOat a temperature in the range of 250 to 650° C., or by heat dehydrating HTiOat a temperature in the range of 200 to 600° C.