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:
Jul. 16, 2013
Filed:
Nov. 03, 2008
Masanori Soma, Fukushima, JP;
Kenichi Kawase, Fukushima, JP;
Masayuki Ihara, Fukushima, JP;
Atsumichi Kawashima, Fukushima, JP;
Kazumi Izumitani, Fukushima, JP;
Masanori Soma, Fukushima, JP;
Kenichi Kawase, Fukushima, JP;
Masayuki Ihara, Fukushima, JP;
Atsumichi Kawashima, Fukushima, JP;
Kazumi Izumitani, Fukushima, JP;
Sony Corporation, Tokyo, JP;
Abstract
A positive electrode for a lithium-ion secondary battery includes a positive-electrode mixture layer, which includes a positive-electrode active material containing lithium composite oxide, a conductive material, and a binder, and a current collector. The positive-electrode mixture layer contains a compound including sulfur and/or phosphorous, a first polymer serving as a main binder, and a second polymer different from the first polymer.