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. 05, 2025
Filed:
Feb. 04, 2021
Fdk Corporation, Tokyo, JP;
Yusuke Kusagaya, Tokyo, JP;
FDK CORPORATION, Tokyo, JP;
Abstract
Provided is a battery pack that is charged by being connected to a charger and discharged by being connected to a load, the battery pack including: a charge-discharge terminalincluding a positive electrode terminal, a negative electrode terminal, and a temperature terminal; a secondary battery that is charged and discharged through the positive electrode terminal and the negative electrode terminal; a current measurement unit that measures a charge-discharge current of the secondary battery; a thermistor which is connected to the temperature terminal and which measures a battery temperature of the secondary battery; a voltage switching unit that intermittently outputs to the temperature terminal an applied voltage that causes the thermistor to operate; and a control unit that recognizes a connected state of the charge-discharge terminal on the basis of the voltage at the temperature terminal in an on-period and an off-period of the applied voltage, and the charge-discharge current.