Characterisation of batteries with E–P-curves

Quantifying the impact of operating conditions on battery performance

authored by

Ishwar Singh Sarpal, Astrid Bensmann, Jochen Mähliß, Dominik Hennefeld, Richard Hanke-Rauschenbach

Abstract

Batteries find their application in various fields. The resulting requirements are characterised in terms of necessary power and energy. In this paper, we suggest to characterise batteries in the same coordinates by determining the energy for varying load power. The resulting E–P-curves can help to compare different cells in the relevant aspects and can be used to design battery storage systems. Therefore, we show the influence of different operating parameters on the charging as well as the discharging behaviour. These are the minimum voltage, the maximum discharge current, the maximum operating as well as the ambient temperature and the initial state of charge. If it is allowed to discharge the battery with a peak current for a short time, the influence can be quantified by the suggested method as well. The method is illustrated by taking different lithium-ion batteries as examples.

Organisation(s)

Section Electrical Energy Storage Systems

External Organisation(s)

Batteryuniversity GmbH

Type

Article

Journal

International Journal of Electrical Power and Energy Systems

Volume

99

Pages

722-732

No. of pages

11

ISSN

0142-0615

Publication date

07.2018

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Energy Engineering and Power Technology, Electrical and Electronic Engineering

Sustainable Development Goals

SDG 7 - Affordable and Clean Energy

Electronic version(s)

https://doi.org/10.1016/j.ijepes.2018.01.017 (Access: Closed)