Enhancing cycle life and usable energy density of fast charging LiFePO4-graphite cell by regulating electrodes’ lithium level
Vallabha Rao Rikka, Sumit Ranjan Sahu, Abhijit Chatterjee, Raju Prakash, G. Sundararajan, R. Gopalan
Abstract
/graphite cells show that a cycle life of 4320 is achieved at 4C rate with 80% SOC-100% DOD combination (12 min charging time), which is the highest among the works reported with this cell chemistry. Complete utilization of electrodes' lithium during cycling resulted in the lowest cycle life of 956. This study demonstrates LIB charging-discharging protocol enabling longer driving range with quicker charging times. Besides, it might endow promising possibilities of future EV LIB packs with reduced size/weight and high safety.
Topics & Concepts
Lithium (medication)Battery (electricity)Range (aeronautics)GraphiteElectrodeBattery packUSableCyclingCharge cycleEnergy storageDriving rangeVoltageCell voltageMaterials scienceElectrical engineeringNanotechnologyChemistryComputer scienceAutomotive batteryEngineeringAnodePhysicsComposite materialMedicineHistoryEndocrinologyQuantum mechanicsPower (physics)Physical chemistryArchaeologyWorld Wide WebAdvancements in Battery MaterialsAdvanced Battery Technologies ResearchAdvanced Battery Materials and Technologies