The battery diagnosis method includes calculating, by a battery management system (BMS), a plurality of direct current internal resistances (DCIRs) respectively with respect to a plurality of battery cells based on a plurality of cell voltages and a plural...

This application relates to the field of charging management, and provides a method for detecting impedance of a charging cable, an electronic device, and a power supply device, to more accurately detect impedance of a charging cable. The method includes: ...

Monitoring battery contact point comprising autonomously measuring contact resistances of a contact terminal (CON # 1+ to CON #n-) for directly connecting a battery (24, V1 to Vn) for charging/discharging and charging/discharging a single secondary battery...

Disclosed is an apparatus for measuring an insulation resistance that may calculate each of a cathode terminal-side insulation resistance value and an anode terminal-side insulation resistance value of a battery. The apparatus for measuring an insulation r...

The present invention relates to an electric energy storage device such as capacitors, secondary batteries, and the like, and more particularly, to an electric energy storage device in which high output characteristics are improved through the use of volta...

An apparatus for sensing a leakage current of a battery includes a floating capacitor charged with a voltage detected from a cathode or anode terminal of a battery; a DC voltage applying unit for applying a DC voltage to the anode terminal when measuring a...