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Cell Balancing System based
on a resonant circuit
applied to Li-ion batteries
Análise e Desenvolvimento de um sistema de equalização
de células de iões de lÃtio baseado num circuito ressonante
Why electric mobility?
Nowadays, the need for new energy storage systems is increasing as the rhythm of economics and natural resources continues to fall. Batteries are known to be integral part of those systems, and for that matter, their study and development is a rising must. There are different kinds of batteries, being Li-ion one of the most promising ones. Naturally, as a electrochemical material, a battery cell isn’t unique or uniform and are crucial differences between two apparently equal cells, as their state of charge. The state of charge of one cell is somehow related to its voltage and unsurprisingly, leads to managing a battery pack performance.Once a battery is composed by a string of battery cells in series or parallel, the unbalanced characteristic can decrease for a significant value the capacity of the all pack. For that reason, for the last 20 years, different topologies have been studied to outline this problem. This report is based on the study of balancing methods used to achieve battery equalization using Li-ion batteries.
"Driven by the growing dependence on oil for energy and by the huge environmental impact of the use of fossil fuels, Portugal is investing in new energy models for mobility that aim to improve quality of life in cities and for us all.This has led to the creation of the Electric Mobility Network. An integrated network linking various stations in Portugal, managed by MOBI.E, that will enable electric vehicles to recharge, using a charge card.Its main mission is to contribute to a more sustainable mobility model, promoting the integration of the electric power coming from renewable sources into the functioning and development of cities and maximizing its advantages"
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