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:
Dec. 15, 2015
Filed:
Feb. 27, 2013
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Hidesato Saruwatari, Saku, JP;
Hiroki Inagaki, Kawasaki, JP;
Hideaki Morishima, Ichikawa, JP;
Shinsuke Matsuno, Kashiwa, JP;
Yumi Fujita, Yokohama, JP;
Norio Takami, Yokohama, JP;
KABUSHIKI KAISHA TOSHIBA, Minato-ku, JP;
Abstract
A nonaqueous electrolyte battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte. At least one of the positive electrode and the negative electrode comprises a current collector made of aluminum or an aluminum alloy and an active material layer laminated on the current collector. The active material layer contains first active material particles having an average particle diameter of 1 μm or less and a lithium diffusion coefficient of 1×10cm/sec or less at 20° C., and second active material particles having an average particle diameter of 2 to 50 μm. A true density of the second active material particles is larger by 0.01 to 2.5 g/cmthan a true density of the first active material particles.