It is well-known today that batteries are indeed the main stumbling block to driving electric vehicles. In fact, the common issues related to lithium rechargeable cells can be summed up by one simple topic: cell equalization. Typically, a battery of a HEV consists of a long string of cells (typically 100 cells, providing a total of about 360 V), where each cell is not exactly equal to the others, in terms of capacity and internal resistance, because of normal dispersion during manufacturing. However, the most viable solution for this problem might not originate from mere changes in battery properties. The aim of this chapter is, first, to explain the role of power electronics based battery cell voltage equalizers and their role in improving cycle life, calendar life, power, and overall safety of EV/HEV battery energy storage systems.
EV and PHEV Battery Technologies
Energy Management Strategies for Electric and Plug-in Hybrid Electric Vehicles ; Kapitel : 5 ; 65-90
2013-10-25
26 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch