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. 06, 2012
Filed:
Sep. 29, 2011
Electrode for lithium secondary battery, lithium secondary battery and method for producing the same
Keiichi Takahashi, Hyogo, JP;
Masaya Ugaji, Osaka, JP;
Yasutaka Kogetsu, Osaka, JP;
Shinji Mino, Osaka, JP;
Nobuaki Nagao, Gifu, JP;
Masaki Hasegawa, Osaka, JP;
Keiichi Takahashi, Hyogo, JP;
Masaya Ugaji, Osaka, JP;
Yasutaka Kogetsu, Osaka, JP;
Shinji Mino, Osaka, JP;
Nobuaki Nagao, Gifu, JP;
Masaki Hasegawa, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An electrode for a lithium secondary battery including a sheet-like current collector and an active material layer carried on the current collector. The active material layer is capable of absorbing and desorbing lithium, and the active material layer includes a plurality of columnar particles having at least one bend. An angle θformed by a growth direction of the columnar particles from a bottom to a first bend of the columnar particles, and a direction normal to the current collector is preferably 10° or more and less than 90°. When θis an angle formed by a growth direction of the columnar particles from an n-th bend counted from a bottom of the columnar particles to an (n+1)-th bend, and the direction normal to the current collector, and n is an integer of 1 or more, θis preferably 0° or more and less than 90°.