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, 2015
Filed:
Mar. 26, 2012
Applicants:
Shumpei Nishinaka, Osaka, JP;
Takahiro Matsuyama, Osaka, JP;
Inventors:
Shumpei Nishinaka, Osaka, JP;
Takahiro Matsuyama, Osaka, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/13 (2010.01); H01M 4/1395 (2010.01); H01M 4/54 (2006.01); H01M 4/131 (2010.01); H01M 4/139 (2010.01); H01M 4/134 (2010.01); H01M 4/38 (2006.01); H01M 4/485 (2010.01); H01M 4/62 (2006.01); H01M 4/66 (2006.01); H01M 10/052 (2010.01);
U.S. Cl.
CPC ...
H01M 4/131 (2013.01); H01M 4/139 (2013.01); H01M 4/134 (2013.01); H01M 4/386 (2013.01); H01M 4/485 (2013.01); H01M 4/621 (2013.01); H01M 4/624 (2013.01); H01M 4/661 (2013.01); H01M 10/052 (2013.01); Y02E 60/122 (2013.01);
Abstract
An electrode for a nonaqueous electrolyte secondary battery includes a current collector and an electrode material disposed on the current collector. the electrode material has a thickness of 50 μm or larger. The electrode material contains at least active material particles, an electro-conductive material, and a crack preventive material. An average particle diameter of the crack preventive material is two times or larger than an average particle diameter of the active material particles.