METHOD AND SYSTEM FOR DETECTING CONNECTION FAULT OF PARALLEL CONNECTION CELL

The present invention relates to a method and system for detecting connection failure of a parallel connection cell, and more specifically, to a method and system for detecting connection failure of a parallel connected cell that provides improved accuracy by first detecting the cell connection failure due to the CID operation of the battery or opening the parallel connection line for a battery that is being discharged by the operation of an external device, and finally confirming the first detection result through DCIR measurement for the battery.