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:
Jun. 16, 2026
Filed:
Jan. 23, 2024
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Osamu Shimizu, Komaki, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
For lithium-ion batteries that are composed of multiple battery cells and have a flat region in the SOC-OCV characteristic curve where the rate of change in open circuit voltage with respect to state of charge is less than or equal to a predetermined value, an equalization method is used to determine which battery cells should be subjected to equalization processing. The equalization cell determination device includes an acquisition unit that acquires the voltages of a plurality of battery cells immediately after charging of a lithium-ion battery is stopped, and a voltage difference between the voltages of the plurality of battery cells acquired by the acquisition unit. The battery includes a calculation unit and a determination unit that determines a battery cell to be subjected to equalization processing based on the plurality of voltage differences calculated by the calculation unit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile