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:
Aug. 08, 2017
Filed:
Nov. 19, 2015
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;
Kosuke Iwase, Nagoya, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-ken, JP;
Abstract
A non-aqueous electrolyte battery system includes a battery voltage output section for outputting a voltage of a non-aqueous electrolyte secondary battery and a freezing determination section for performing freezing determination to a non-aqueous electrolyte. In the freezing determination, the freezing determination section executes freezing determination current control for supplying a current at a freezing determination current value at a freezing determination time in a direction to charge the non-aqueous electrolyte secondary battery. When a voltage value output from the battery voltage output section exhibits a transition that rises once to a peak value during execution of the freezing determination current control, and then decreases with time, it is determined that the non-aqueous electrolyte is in a frozen state.