SOLARX-Lithium-PRO™ : A XUNZEL ENERGY Research and Development project co-financed by the European Regional Development Fund (ERDF / FEDER) with the aim of promoting technological development, innovation and quality research; where the main objective is to develop and increase the knowledge to design and industrialize Lithium-ion batteries with higher efficiency, longer duration and life expectancy, lower manufacturing and maintenance costs, lower weight and dimensions that facilitate their transport and installation space requirements.