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. 04, 2010
Filed:
Dec. 07, 2006
Shinya Wakita, Fukushima, JP;
Izaya Okae, Fukushima, JP;
Yosuke Ushio, Fukushima, JP;
Yoshiaki Takeuchi, Fukushima, JP;
Saori Tokuoka, Fukushima, JP;
Shinya Wakita, Fukushima, JP;
Izaya Okae, Fukushima, JP;
Yosuke Ushio, Fukushima, JP;
Yoshiaki Takeuchi, Fukushima, JP;
Saori Tokuoka, Fukushima, JP;
Sony Corporation, Tokyo, JP;
Abstract
A battery capable of obtaining a high energy density and obtaining superior cycle characteristics is provided. The thickness of a cathode active material layer is from 100 μm to 130 μm. The thickness of an anode active material layer is from 85 μm to 120 μm, and the volume density of the anode active material layer is from 1.7 g/cmto 1.85 g/cm. An electrolytic solution contains 4-fluoro-1,3-dioxolane-2-one. Thereby, even when the thicknesses of the cathode active material layer and the anode active material layer are increased, the diffusion and acceptance of lithium in an anode are improved, and superior cycle characteristics can be obtained.