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. 22, 2005
Filed:
Jul. 26, 2001
Kohei Suzuki, Yao, JP;
Kazunori Kubota, Moriguchi, JP;
Akira Kuroda, Hirakata, JP;
Motoi Kawamura, Kadoma, JP;
Masao Fukunaga, Osaka, JP;
Tsumoru Ohata, Kyoto, JP;
Kohei Suzuki, Yao, JP;
Kazunori Kubota, Moriguchi, JP;
Akira Kuroda, Hirakata, JP;
Motoi Kawamura, Kadoma, JP;
Masao Fukunaga, Osaka, JP;
Tsumoru Ohata, Kyoto, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A non-aqueous electrolyte secondary battery comprises: a positive electrode sheet comprising a positive electrode mixture containing a lithium-containing transition metal oxide as an active material and a particulate binder; a negative electrode sheet comprising a negative electrode mixture containing a carbon material; a separator interposed between the positive electrode sheet and the negative electrode sheet; and a non-aqueous electrolyte containing a lithium salt, wherein the positive electrode sheet and the negative electrode sheet are wound with the separator interposed therebetween to form an electrode assembly, and the positive electrode mixture has an active material density of 3.0 to 4.0 g/ml. The battery has a long life, high energy density and high output.