Title :
A new method for the measurement of the double layer capacitance for the estimation of battery capacity
Author :
Baert, Daniel H J ; Vervaet, Alfons A K
Author_Institution :
Gent Univ., Belgium
Abstract :
In this paper a new method for the determination of the double layer capacitance and the internal inductance of a cell or battery is described. The resonance frequency of the double layer capacity with the internal inductance is determined by means of a phase measurement. The method can be used during operation of the battery. During a constant current discharge it is possible to predict the available discharge time from the resonance frequency at the start of the discharge and the actual resonance frequency.
Keywords :
battery charge measurement; capacitance measurement; discharges (electric); phase measurement; secondary cells; battery capacity estimation; battery operation; constant current discharge; discharge time; double layer capacitance measurement; internal inductance; phase measurement; resonance frequency; Battery charge measurement; Capacitance measurement; Electrodes; Equivalent circuits; Impedance measurement; Inductance; Monitoring; Phase measurement; Resonance; Resonant frequency;
Conference_Titel :
Telecommunications Energy Conference, 2003. INTELEC '03. The 25th International
Conference_Location :
Yokohama, Japan
Print_ISBN :
4-88552-196-3
