NDLI: Internal Resistance: Harbinger of Capacity Loss in Starved Electrolyte Sealed Lead Acid Batteries

Content Provider	IEEE Xplore Digital Library
Author	Vaccaro, F. J. Casson, P.
Copyright Year	1987
Description	Author affiliation: AT&T Bell Laboratories, 600 Mountain Avenue, Murray Hill, New Jersey 07974, U.S.A. (Casson, P.) \|\| AT&T Bell Laboratories, 600 Mountain Avenue, Murray Hill, New Jersey 07974, U.S.A (Vaccaro, F. J.)
Abstract	In many standby applications, the battery technology of choice is lead acid. Where the application is critical the state of health of the battery is a primary concern. A simple evaluaton technique for determining the battery's performance would be highly desirable. Described are measurements of battery impedance made on a sealed lead acid battery of a particular type. At least one important failure mechanism, dryout, is usefully presaged by an increase in impedance of sealed lead acid batteries. The impedance rise, which is observed to be log-linear with time on float, is accompanied by a linear loss of cell weight due to water loss. The results suggest that battery impedance may provide a useful diagnostic for sealed lead acid batteries if simple calibration experiments are performed on cells of the type to be monitored.
Starting Page	128
Ending Page	131
File Size	4283217
Page Count	4
File Format	PDF
ISBN	9178109167
DOI	10.1109/INTLEC.1987.4794541
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1987-06-14
Publisher Place	Sweden
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Battery charge measurement Impedance measurement Electrical resistance measurement Particle measurements System testing Voltage Shape measurement Manufacturing Failure analysis Calibration
Content Type	Text
Resource Type	Article

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