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:
Jan. 05, 2016
Filed:
Nov. 16, 2012
Takuya Iwasaki, Uenohara, JP;
Hiroki Inagaki, Yokohama, JP;
Kazuhiro Yasuda, Yokohama, JP;
Keigo Hoshina, Yokohama, JP;
Mitsuru Ishibashi, Yokohama, JP;
Yorikazu Yoshida, Yokohama, JP;
Norio Takami, Yokohama, JP;
Takuya Iwasaki, Uenohara, JP;
Hiroki Inagaki, Yokohama, JP;
Kazuhiro Yasuda, Yokohama, JP;
Keigo Hoshina, Yokohama, JP;
Mitsuru Ishibashi, Yokohama, JP;
Yorikazu Yoshida, Yokohama, JP;
Norio Takami, Yokohama, JP;
KABUSHIKI KAISHA TOSHIBA, Tokyo, JP;
Abstract
According to one embodiment, an electrode includes a current collector, an active material-containing layer, a first peak, a second peak and a pore volume. The active material-containing layer contains an active material having a lithium absorption potential of 0.4 V (vs. Li/Li) or more. The first peak has a mode diameter of 0.01 to 0.1 μm in a diameter distribution of pores detected by mercury porosimetry. The second peak has a mode diameter of 0.2 μm (exclusive) to 1 μm (inclusive) in the diameter distribution of pores. The pore volume detected by the mercury porosimetry is within a range of 0.1 to 0.3 mL per gram of a weight of the electrode excluding a weight of the current collector.