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:
Mar. 07, 2017
Filed:
Jul. 27, 2012
Takayuki Nakayama, Nissin, JP;
Akio Minakuchi, Okazaki, JP;
Takayuki Nakayama, Nissin, JP;
Akio Minakuchi, Okazaki, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, JP;
Abstract
A secondary battery is charged at a predetermined charging current density to a first SOC, and discharged at a discharging current density same as the charging current density to a second SOC smaller than the first SOC, the voltage thereof is stabilized by leaving the secondary battery for a predetermined time while maintaining the secondary battery in the range of ±3° C. from the battery temperature of the secondary battery that has been discharged, the secondary battery the voltage of which has been stabilized is self-discharged under room temperature, and the presence or absence of a short-circuit is detected on the basis of a voltage drop amount after a given time.