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:
Apr. 14, 2020
Filed:
Jul. 23, 2015
Datang Nxp Semiconductors Co., Ltd., Jiangsu, CN;
Joop van Lammeren, Jiangsu, CN;
Datang NXP Semiconductor Co., Ltd., Jiangsu, CN;
Abstract
Method and apparatus for contact detection in battery packs are disclosed. A battery pack, comprising: at least a first battery cell and a second battery cell, the first battery cell having a first electrode and a second electrode, and the second battery cell having a third electrode and a fourth electrode; a power bar for coupling the second electrode of the first battery cell to the third electrode of the second battery cell; a communication wire for signal communication between the first battery cell and the second battery cell, wherein the first battery cell comprises a supervisor, which comprises a voltage detector to measure a first voltage between the first electrode and the second electrode of the first battery cell in a first state, and to measure a second voltage between the first electrode of the first battery cell and the communication wire in a second state; and a digital circuit to compute a voltage difference between the first voltage and the second voltage, and to indicate degraded contact of the power bar if the voltage difference is out of a predetermined threshold range. A battery cell and a method for monitoring a battery pack are also disclosed.