A probabilistic battery design method is discussed in the paper, with reference to lithium-ion batteries, based upon battery lifetime and related economical aspects. The method takes into account the dependence of battery lifetime on different parameters, such as design maximum specific power and operating environment. The methods relies on a large set of experimental measurements, in particular accelerated life tests. In addition, the randomness of the above parameters in real operating conditions is considered in the paper. Based on available experimental data, the lifetime probability distribution of these batteries has been estimated by means of a Weibull model. More specifically, after a thorough statistical data analysis, a probabilistic method for battery design is proposed which ensures the minimization of a suitable cost function which has the expected lifetime as a basic input. The method allows to guarantee the required robustness design against the random variations in specific power experienced by a lithium ion battery designed for a small electric bus (public transport service).

Probabilistic battery design based upon accelerated life tests / Chiodo, Elio; Lauria, Davide; Andrenacci, N.; Pede, G.. - In: INTELLIGENT INDUSTRIAL SYSTEMS. - ISSN 2363-6912. - 2:3(2016), pp. 243-252. [10.1007/s40903-016-0054-9]

Probabilistic battery design based upon accelerated life tests

CHIODO, ELIO;LAURIA, DAVIDE;
2016

Abstract

A probabilistic battery design method is discussed in the paper, with reference to lithium-ion batteries, based upon battery lifetime and related economical aspects. The method takes into account the dependence of battery lifetime on different parameters, such as design maximum specific power and operating environment. The methods relies on a large set of experimental measurements, in particular accelerated life tests. In addition, the randomness of the above parameters in real operating conditions is considered in the paper. Based on available experimental data, the lifetime probability distribution of these batteries has been estimated by means of a Weibull model. More specifically, after a thorough statistical data analysis, a probabilistic method for battery design is proposed which ensures the minimization of a suitable cost function which has the expected lifetime as a basic input. The method allows to guarantee the required robustness design against the random variations in specific power experienced by a lithium ion battery designed for a small electric bus (public transport service).
2016
Probabilistic battery design based upon accelerated life tests / Chiodo, Elio; Lauria, Davide; Andrenacci, N.; Pede, G.. - In: INTELLIGENT INDUSTRIAL SYSTEMS. - ISSN 2363-6912. - 2:3(2016), pp. 243-252. [10.1007/s40903-016-0054-9]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/663595
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