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. 06, 2007
Filed:
Mar. 22, 2002
Takamitsu Saito, Fukushima, JP;
Yoshikatsu Yamamoto, Fukushima, JP;
Shinji Hatake, Fukushima, JP;
Sony Corporation, Tokyo, JP;
Abstract
The present invention relates to a nonaqueous electrolyte battery comprising: a cathode including a positive active material; an negative including a negative active material and a nonaqueous electrolyte, wherein assuming that the first charging capacity of the positive active material per gram is Cc [mAh/g], the weight of the positive active material is Cw [g], the first charging capacity of the negative active material per gram is Ac [mAh/g], the first discharging capacity is Ad [mAh/g] and the weight of the negative active material is Aw [g], the value of X [%] represented by a formula 16 is located within a range expressed by 20≦X≦50. Thus, the deterioration of a capacity due to charging and discharging cycles is suppressed.