Analyzes the Performance of Different Lithium-Ion Battery Chemistries for Application In Electric Vehicles

Abstract

       This work analyzes the performance of different lithium-ion battery chemistries for application in electric vehicles. Six different lithium-ion batteries were evaluated, including lithium iron phosphate, nickel metal hydride, and lead-acid batteries. Key performance factors analyzed include energy density, power density, cycle life, maximum charging rate, cost per kWh, and operating temperature range. Battery performance was modeled for hybrid and pure electric vehicles over a standardized driving cycle. Results showed lithium iron phosphate batteries offered the best overall performance in terms of high cycle life, high power and energy density, ability to charge at higher C-rates, and lower cost per kWh stored. An optimal charging C-rate was determined for each battery chemistry.