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.

Date of Patent:
May. 13, 2014

Filed:

Oct. 19, 2007
Applicants:

Masaki Yoshio, Saga, JP;

Toshihiko Kawamura, Yokkaichi, JP;

Nariaki Moriyama, Yokkaichi, JP;

Masatoshi Honma, Yokkaichi, JP;

Tokuo Suita, Kusatsu, JP;

Hirofumi Taniguchi, Yokkaichi, JP;

Tomoyuki Sotokawa, Kusatsu, JP;

Inventors:

Masaki Yoshio, Saga, JP;

Toshihiko Kawamura, Yokkaichi, JP;

Nariaki Moriyama, Yokkaichi, JP;

Masatoshi Honma, Yokkaichi, JP;

Tokuo Suita, Kusatsu, JP;

Hirofumi Taniguchi, Yokkaichi, JP;

Tomoyuki Sotokawa, Kusatsu, JP;

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01G 9/00 (2006.01); H01M 8/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

Disclosed is a storage device comprising a positive electrode material containing graphite; a negative electrode material containing an oxide of at least one metal element selected from Ti, Zr, V, Cr, Mo, Mn, Fe, Co, Ni, Cu, Zn, Sn, Sb, Bi, W and Ta, which may preferably contains a metal oxide containing at least Ti as a metal element; and an electrolyte solution. This storage device has high capacitance and high discharge voltage, thereby having high energy. Consequently, this storage device can have high energy density, while being excellent in cycle performances and rate performances.


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