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:
May. 11, 2021
Filed:
Jul. 15, 2019
Lg Chem, Ltd., Seoul, KR;
Ki-Hyun Kim, Daejeon, KR;
LG CHEM, LTD., Seoul, KR;
Abstract
Disclosed is a battery balancing apparatus and method. The battery balancing apparatus includes a plurality of balancing circuits, each balancing circuit is connected in parallel to a respective battery cell among a plurality of battery cells and the plurality of balancing circuits are connected in series to each other, in one-to-one relationship; and a control unit operably coupled to each balancing circuit. The control unit selects at least one of the plurality of battery cells as a balancing target, based on a SOC of each battery cell, and outputs an enable signal and a balancing message to each balancing circuit connected to each battery cell selected as the balancing target. Each balancing circuit transmits a first wireless signal and a second wireless signal corresponding to the balancing message by using electric energy stored in each battery cell, when the enable signal is received by each balancing circuit.