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An improved battery characterization method using a two-pulse load test

delete2008-06-01
delete149
PRE
AI
C
Coleman, Martin *
W
W.G. Hurley
C
Chin Kwan Lee
DOI:10.1109/TEC.2007.914329delete
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Abstract

Abstract

En 中文
It is very important to have the ability to determine the available capacity, the state of charge (SoC), and the state of health (SoH) of a battery; this ensures that the battery has the available power for the system requirements. A battery is aged by charging and discharging cycles; this process degrades the chemical composition of the battery. An undercharged battery has sulphation and stratification effects that shorten the lifetime of the battery. Overcharging causes gassing and water loss. This paper describes a novel two-pulse test to determine the AHC, SoC, and SoH of a valve regulated lead acid (VRLA) and a lithium ion battery. These parameters are related to the voltage drop after each pulse of current discharge. The first pulse stabilizes the battery relative to its previous history, and the second pulse establishes the parameters. The new approach is fully validated by experiment.
Keywords:
AHC capacity
lead-acid battery
lithium ion battery
state of charge (SoC)
state of health (SoH)
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Journal

IEEE Transactions on Energy Conversion cover
IEEE Transactions on Energy Conversion
IF:
5.4
Papers:
6.8K
Citations:
1.5W

Organization

O
ollscoil na gaillimhe-university of galway
Scholars:
1.1W
Papers: 8.7K
Citations: 5
U
university college dublin
Scholars:
2.6W
Papers: 2.2W
Citations: 22