Title :
Internal resistance and deterioration of VRLA battery-analysis of internal resistance obtained by direct current measurement and its application to VRLA battery monitoring technique
Author :
Kurisawa, Isama ; Iwata, Masashi
Author_Institution :
Japan Storage Battery Co. Ltd., Kyoto, Japan
Abstract :
In this report, attention is placed on the ohmic resistance, not on the conventional AC impedance of the valve-regulated Pb-acid (VRLA) battery. Based on the various effects obtained in the course of analyzing resistance, it has been confirmed that the internal resistance of a deteriorated battery increases as the resistance of positive plates increases. In addition, a means for identifying another deterioration mode (dry-out) applied using ohmic resistance is described. At the same time, the authors´ concept for estimating the remaining life of VRLA batteries is proposed
Keywords :
battery testers; electric impedance measurement; electrochemical electrodes; electrochemistry; lead; secondary cells; Pb; Pb-acid secondary battery; battery deterioration; battery monitoring; deterioration mode identification; direct current measurement; dry-out; internal resistance; ohmic resistance; positive plates; remaining life estimation; valve-regulated lead-acid batteries; Battery charge measurement; Containers; Current measurement; Electrical resistance measurement; Equivalent circuits; Impedance; Life estimation; Monitoring; Particle separators; Voltage measurement;
Conference_Titel :
Telecommunications Energy Conference, 1997. INTELEC 97., 19th International
Conference_Location :
Melbourne, Vic.
Print_ISBN :
0-7803-3996-7
DOI :
10.1109/INTLEC.1997.646071
