Journal of Siberian Federal University. Engineering & Technologies: Analysis of Electric Vehicles Motion Modes Influence on Traction Batteries Aging Based on WLTC

Journal of Siberian Federal University. Engineering & Technologies / Analysis of Electric Vehicles Motion Modes Influence on Traction Batteries Aging Based on WLTC

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Issue: Journal of Siberian Federal University. Engineering & Technologies. 2020 13 (8)
Authors: Shchurov, Nikolay I.; Shtang, Alexander A.; Dedov, Sergei I.; Xiaogang, Wu
Contact information: Shchurov, Nikolay I.: Novosibirsk State Technical University Novosibirsk, Russian Federation; nischurov@mail.ru; Shtang, Alexander A.: Novosibirsk State Technical University Novosibirsk, Russian Federation; Dedov, Sergei I.: Novosibirsk State Technical University Novosibirsk, Russian Federation; Xiaogang, Wu: Harbin University of Science and Technology Harbin, China
Keywords: electric transport; electrochemical energy storage; lithium battery; driving cycles; energy recovery
Abstract: The paper considers the growth rates of electric vehicles, taking into account the development of electrochemical energy storage. The main lithium batteries aging mechanisms under conditions of uneven load and reversible nature of energy exchange processes with short modes of recharging batteries during regenerative braking are determined. To assess the aging of the lithium battery, the WLTC driving cycle was taken as a basis, in accordance with which the load on the electric vehicle energy storage unit the was formed. A Nissan Leaf equipped with energy storage units (ESU) of different energy intensity was adopted as a test sample. Current diagrams were obtained for one battery cell, minimum, average and maximum currents, as well as durations of traction, braking and stopping modes in various control modes of electric rolling stock are given. An assumption is made about the growth of the energy intensity of the ESU in the future period and its influence on the load of the storage battery is determined. On the basis of the data processing carried out, the main changes in the processes occurring in the power source, associated with an increase in the energy intensity of the ESU, have been revealed
Pages: 977–990
DOI: 10.17516/1999-494X-0279
Paper at repository of SibFU: https://elib.sfu-kras.ru/handle/2311/137889

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