Extended Life Lithium Ion Batteries Laboratory Project at IIT Madras

Laboratory of 'Extended Life in Lithium-ion batteries'

Objective

• The objective of the work is to extend the life of lithium-ion batteries used in electric vehicles.

Description

• To meet the energy demand it is essential to store the energy from solar/wind when available in excess and utilize it during demand period, To ensure energy security and to bridge supply-demand gap, it is essential to store energy in some form, The batteries used in electric vehicles are based lithium-ion chemistry, and after they reach 80% of their maximum capacity in EV, they are deemed unfit for vehicles. However, the rest 80% of storage capacity left in the EV batteries shall be repurposed for stationary storage where space is not as premium as vehicles, Most of these batteries shall be repurposed to be used in renewable energy storage.

Impact

• 1. Li-ion battery testing setup to understand the extended life, 2. Real-time experimental test data of Li-ion batteries, 3. Models/algorithms for BMS to predict RUL and recommend the suitable application.