Shallow discharge cycling have been performed on a Nickel Metal Hydride battery specifically designed for automotive application. The voltage depression phenomenon, commonly named “Memory effect”, has been reproduced under controlled conditions. The growth process of the voltage lowering as function of shallow discharge cycle number and the cycle discharge depth has been investigated. The influence of the voltage depression on the battery performances has been investigated too. The paper describes the main test results and proposes a technique to take into account the battery memory effect at the design stage of a Ni-MH battery storage system, with particular reference to systems for electric or hybrid vehicles.
Experimental Evaluation of “Memory Effect” on a Nickel-Metal Hydride Power Battery
MIULLI, CARMINE;CERAOLO, MASSIMO
2004-01-01
Abstract
Shallow discharge cycling have been performed on a Nickel Metal Hydride battery specifically designed for automotive application. The voltage depression phenomenon, commonly named “Memory effect”, has been reproduced under controlled conditions. The growth process of the voltage lowering as function of shallow discharge cycle number and the cycle discharge depth has been investigated. The influence of the voltage depression on the battery performances has been investigated too. The paper describes the main test results and proposes a technique to take into account the battery memory effect at the design stage of a Ni-MH battery storage system, with particular reference to systems for electric or hybrid vehicles.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
