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:
Mar. 03, 2009
Filed:
Nov. 29, 2006
Akira Yamaguchi, Fukushima, JP;
Shinji Hatake, Fukushima, JP;
Masayuki Nagamine, Fukushima, JP;
Atsuo Omaru, Fukushima, JP;
Akira Yamaguchi, Fukushima, JP;
Shinji Hatake, Fukushima, JP;
Masayuki Nagamine, Fukushima, JP;
Atsuo Omaru, Fukushima, JP;
Sony Corporation, Tokyo, JP;
Abstract
A nonaqueous electrolyte secondary battery is provided with a positive electrode including a positive-electrode active material, a negative electrode including a negative-electrode active material, and a nonaqueous electrolyte solution. The negative electrode further includes carbon fibers and carbon flakes. The synergistic effects of the improved retention of the electrolyte solution by the carbon fibers and the improved conductivity between the active material particles by the carbon flakes facilitate doping/undoping of lithium in a high-load current mode and increase the capacity of the battery in the high-load current mode.