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:
Feb. 18, 2003
Filed:
Nov. 24, 2000
Applicant:
Inventors:
Tadashi Sakata, Ibaraki, JP;
Yoshifumi Sakamoto, Ibaraki, JP;
Masanori Sugano, Ibaraki, JP;
Akira Asada, Ibaraki, JP;
Keiji Nakamura, Ibaraki, JP;
Megumu Takai, Ibaraki, JP;
Assignee:
Hitachi Maxell, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/58 ;
U.S. Cl.
CPC ...
H01M 4/58 ;
Abstract
A non-aqueous liquid electrolyte cell comprising a positive electrode which has a metal oxide as an active material, a negative electrode, and a non-aqueous liquid electrolyte, in which the metal oxide has an average particle size of 40 to 150 &mgr;m, and the volume of the liquid electrolyte is 0.9 to 1.25 times as large as the volume of the metal oxide, which has good characteristics even at low temperature.