Performance Analysis of Energy Storage Unit with Lead-acid and Lithium Iron Phosphate Battery

Abstract

An energy storage unit is used to storage energy in batteries that is used to supply power whenever the need arises. In today’s market most energy storage units that are still being used are based on lead-acid battery chemistry. Lithium based batteries have become easily available and is an acceptable replacement for lead-acid battery. Lithium Iron Phosphate (LiFePO4) has been found to be a suitable replacement for the lead-acid batteries. It is used as replacement as it provides higher power capacity for the same cost and its capability to avoid thermal runaway. The modelling and simulation of both batteries is done in MATLAB to analyze the expected changes in the system parameters for upgrading to lithium battery.