Electrical vehicles autonomy is usually affected by cells low energy density. In an EV scooter, due to the limited room and weight available, this becomes a design critical point. Li-Ion cells seem to be the best solution to set up a good autonomy vehicle with a reasonable weight and volume occupation. Two different kinds of batteries are then tested to point out the single cell actual behavior. Afterwards, charge and discharge voltage profiles are obtained for a small pack and the best performing battery type is chosen. According to the observed cell to cell voltage mismatch, a monitor and balancing circuit is designed to provide individual cell protection and maximize the final packs exploitation.
Feasibility, test and novel design of battery packs for EV Scooter / Casasso, P.; Fratta, A.; Giraudo, G.; Guglielmi, P.; Villata, F.; Franceschini, G.. - 2:(2003), pp. 1649-1654. (Intervento presentato al convegno The 29th Annual Conference of the IEEE Industrial Electronics Society tenutosi a Roanoke, VA, usa nel 2003) [10.1109/IECON.2003.1280305].
Feasibility, test and novel design of battery packs for EV Scooter
Franceschini, G.
2003
Abstract
Electrical vehicles autonomy is usually affected by cells low energy density. In an EV scooter, due to the limited room and weight available, this becomes a design critical point. Li-Ion cells seem to be the best solution to set up a good autonomy vehicle with a reasonable weight and volume occupation. Two different kinds of batteries are then tested to point out the single cell actual behavior. Afterwards, charge and discharge voltage profiles are obtained for a small pack and the best performing battery type is chosen. According to the observed cell to cell voltage mismatch, a monitor and balancing circuit is designed to provide individual cell protection and maximize the final packs exploitation.
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