1. Advanced Energy Storage Division Center for Innovation on New Energies, Manufacturing Group University of Campinas School of Electrical and Computer Engineering Av Albert Einstein 400 13083-852 Campinas SP Brazil
2. Department of Chemistry, Laboratory of Fundamental and Applied Electrochemistry Federal University of Jequitinhonha e Mucuri's Valley Rodovia MGT 367, km 583, 5000 Alto da Jacuba 39100-000 Diamantina MG Brazil