Dear Colleagues,

Emissions from the transportation sector are significant contributors to climate change and health problems because of the common use of gasoline vehicles. Countries in the world are attempting to transition away from gasoline vehicles toward battery electric vehicles (BEVs), to reduce emissions. However, there are several practical limitations with BEVs, one of which is the “range anxiety” issue, due to the lack of charging infrastructure, the high cost of long-ranged BEVs, and the limited range of affordable BEVs. One potential solution to the range anxiety problem is the use of range extenders, to extend the driving range of EVs while optimizing the costs and performance of the vehicles. A variety of several configurations with power trains include primary battery energy storage systems (ESSs) and secondary range extenders. This Special Issue will examine a comprehensive review of different types of EV range-extending technologies, including internal combustion engines, free-piston linear generators, fuel cells, micro-gas turbines, aluminum-air batteries, and zinc-air batteries, outlining their definitions, working mechanisms, and some recent developments of each range-extending technology. There is a growing interest in power trains with “change-out” range extenders. This Special Issue seeks analysis of the comparison between the different technologies, highlighting the advantages and disadvantages of each, which is also presented to help address future research needs. Since EVs will be a significant part of the automotive industry's future, range extenders will be an important concept to be explored to provide a cost-effective, reliable, and efficient solution to consumers. Innovative power trains with secondary extenders can develop dynamic solutions to combat the range anxiety issue, the safety of battery storage systems, and the reduction in the cost and weight of primary battery ESSs.

Prof. Dr. Michael Fowler
Dr. Yi Xie
Dr. Satyam Panchal
Guest Editors

Manuscript Submission Information

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• power train
• range extenders
• series battery packs
• energy storage systems
• battery management systems
• battery electric vehicle
• novel power train vehicles