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:
Dec. 25, 2007

Filed:

Jan. 28, 2003
Applicants:

Hidetoshi Ito, Kanagawa, JP;

Yoshiaki Naruse, Kanagawa, JP;

Takeru Yamamoto, Kanagawa, JP;

Inventors:

Hidetoshi Ito, Kanagawa, JP;

Yoshiaki Naruse, Kanagawa, JP;

Takeru Yamamoto, Kanagawa, JP;

Assignee:

Sony Corporation, Tokyo, JP;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention relates to a non-aqueous electrolyte secondary battery in which a spirally coiled battery element obtained by spirally coiling an anode () and a cathode () through a separator () is accommodated in a battery can () filled with a non-aqueous electrolyte. A fluoride MF(M indicates at least one metal selected from between Cu, Ni, Ag, Ti, Sn and Cr, and n is an integer.) is included in the anode before an initial charging operation, and assuming that the initial charging capacity of the battery is Q [mAh] and a Faraday constant is F [C/mol], an amount m [mol] of the fluoride MFincluded in the anode is located within a range represented by the following expression0.0036 Q/nF≦m≦0.36 Q/nF.


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