S. Thirumalai Kumaran is an associate professor in the Department of Mechanical Engineering at the PSG Institute of Technology and Applied Research in India. He completed his Ph.D. in mechanical engineering from Kalasalingam Academy of Research and Education in India in 2015. Dr. S Thirumalai received a Gold medal in manufacturing engineering from the Government College of Technology in 2008. Tae Jo Ko is a professor at the School of Mechanical Engineering at Yeaungnam University in Gyeongsan-si, South Korea. He received a Ph.D. in mechanical engineering from POSTECH, South Korea. Professor Tae Jo Koe has had over 250 publications in indexed journals, launched new research in rechargeable batteries, and has traveled across the globe delivering keynote lectures.