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:
Jun. 07, 2011
Filed:
Aug. 08, 2007
Tomoyuki Nakamura, Fukushima, JP;
Yuji Uchida, Fukushima, JP;
Takehiko Suwa, Fukushima, JP;
Hirotaka Sakai, Fukushima, JP;
Takahiro Endo, Fukushima, JP;
Tomoyuki Nakamura, Fukushima, JP;
Yuji Uchida, Fukushima, JP;
Takehiko Suwa, Fukushima, JP;
Hirotaka Sakai, Fukushima, JP;
Takahiro Endo, Fukushima, JP;
Sony Corporation, Tokyo, JP;
Abstract
A nonaqueous electrolyte secondary cell includes an electrode body including a positive electrode, a negative electrode, and a separator, the positive electrode and the negative electrode being arranged to oppose each other with the separator therebetween, and being rolled or stacked; a nonaqueous electrolyte solution; and an exterior package for accommodating the electrode body and the nonaqueous electrolyte solution. A polymeric support is provided between the separator and at least one of the positive electrode and the negative electrode, and the ratio (MO/MA) of the amount (MO) of the nonaqueous electrolyte solution present between the electrode body and the exterior package to the amount (MA) of the nonaqueous electrolyte solution present in the exterior package is 0.04 or less.