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:
Aug. 03, 2010
Filed:
Oct. 28, 2005
Kohei Matsui, Shinjuku-ku, JP;
Risa Takahata, Shinjuku-ku, JP;
Nobuo Ando, Shinjuku-ku, JP;
Atsuro Shirakami, Shinjuku-ku, JP;
Shinichi Tasaki, Shinjuku-ku, JP;
Yukinori Hato, Shinjuku-ku, JP;
Kohei Matsui, Shinjuku-ku, JP;
Risa Takahata, Shinjuku-ku, JP;
Nobuo Ando, Shinjuku-ku, JP;
Atsuro Shirakami, Shinjuku-ku, JP;
Shinichi Tasaki, Shinjuku-ku, JP;
Yukinori Hato, Shinjuku-ku, JP;
Fuji Jukogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A lithium ion capacitor having a high capacity retention at the time of continuous charge at a high temperature and excellent durability. The lithium ion capacitor includes a positive electrode, a negative electrode and an aprotic organic solvent electrolyte solution of a lithium salt as an electrolytic solution. The positive electrode active material is a material capable of reversibly supporting lithium ions and/or anions, a negative electrode active material is a material capable of reversibly supporting lithium ions, the negative electrode and/or the positive electrode is doped with lithium ions so that the potential of the positive electrode is at most 2.0 V after the positive electrode and the negative electrode are short-circuited, and the electrolytic solution contains vinylene carbonate or its derivative.