The electric mobility market in India is witnessing an exponential growth as estimated by market researchers and stake holders. The majority in this market is attributed to a low speed, 3-wheeled (3W), EV solution catering to the first and last mile connectivity popularly known as the E-Rickshaw. The choice of energy storage for this has been mostly a lead‒acid system that has served the purpose but needs to be significantly improved if it must remain viable and in contention. In a broad view, the application is similar to the motive power and other Material Handling Equipment (MHE) applications. However, in this presentation, the primary and secondary research shows that the application departs significantly from the standard controlled environment operation of a traction battery system. The ageing mechanism and failure modes of the batteries have been analysed and improvement pathways have been charted through understanding of the problems, Furthermore, the necessity of developing a proper endurance test protocol to be conducted in the laboratory has been realized. Such work is in progress and the resulting deeper understanding and further fine tuning it be able to duplicate t field conditions in a close and realistic manner.
Subhankar Chakraborty is a Senior General Manager, R&D, in Exide Industries Ltd, India. He is a post graduate degree holder in Mechanical Engineering from Indian Institute of Science, Bangalore, India. He has more than 30 years of work experience with Improving lead‒acid batteries. Currently, Subhankar is engaged in the development of batteries for the home inverter and the E-Rickshaw.
Indrajit Majumdar, has 28 years of experience of working in Lead acid battery starting from Product Development, QA , Plant Operations, after sales service and Green field projects. He started his career in the Technical and QA department of Exide Industries Plant in Haldia. Thereafter he has worked in several LAB manufacturing plants in India and abroad. For past 5 years he is working as Sr. General Manager -R&D for Automotive and VRLA batteries of Exide Industries Limited. He holds a bachelor’s degree of Chemical Engineering with a Master’s degree of Business Administration in Systems Management.