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:
May. 30, 2006
Filed:
Jan. 09, 2003
Koichiro Maeda, Kawasaki, JP;
Haruhisa Yamamoto, Tokyo, JP;
Koichiro Maeda, Kawasaki, JP;
Haruhisa Yamamoto, Tokyo, JP;
Zeon Corporation, Tokyo, JP;
Abstract
A binder for battery comprising composite polymer particles in which two or more polymers having different chemical structures form a heterogeneous phase structure. Preferably, said two or more polymers include two polymers having a glass transition temperature (Tg) different from each other by 5° C. or more. When a slurry prepared by mixing the binder with a liquid material and an active material is used for the production of an electrode for a secondary battery, especially, a lithium secondary battery, the resulting battery exhibits an improved performance because the slurry imparts a well-balanced binding power and a binding durability.