Our times are characterized by numerous electronic applications that are changing the lifestyle of many. There are devices designed for various situations and one of the biggest challenges is making sure these applications last as much as possible. For this purpose, rechargeable batteries are the best solution until now, guaranteeing a permanent and clean energy storage if we talk about the automotive industry. In fact, batteries are starting to be the most common electrical energy storage system for an electric vehicle (EV) or hybrid electric vehicle (HEV). In electric vehicles, a battery pack can provide several hundred volts, since various functions within a car depend on it, including powering the electric motor itself.