扩展锌锰液流电池：性能和经济评估.pdf

1、Eleonora Natale,Federico Lissandrello,Luca MagagninScaling Zn-Mn Flow Batteries:Performance&Economic Assessment SEELabSurface and ElectrochemicalEngineering LaboratoryBackgroundPatents portfolioin energy storage(15)Spin-off Polimi for water treatmentTechnologies transfer and commercialisationSpin-of

2、f Polimi forlithium batteriesWhy RFB for ESS?Long life-cycles(10-20 y)Lower maintenance costsEasy scalabilityEnergy and power are independent variablesAdjustable E/P(MWh/MW)Zn-Mn Flow Battery:StructureMagagnin et.al,Politecnico di Milano,Rechargeable Flow Battery,World Patent WO 2022123614A1,16 June

3、 2022.OCV=1.97VManganese based electrolyte+4()42+2=.Zinc based electrolyte4+42=+.Foam ElectrodesZn-Mn FB:Lab cell validationThe cell cycled stably with minimal capacity fade.The selection of materials and electrode design enables reversibility and stability.Zn-Mn Flow Battery:Carbon Felt vs Metal Fo

4、ams The discharge cutoff voltage was limited to prevent MnO2formation The battery was able to discharge a total capacity of 13,02 AhL-1in the first cycle,corresponding to an electrolyte utilization of 94%Zn-Mn FB:Stack performance+3 weeks cycling testThe selection of materials and electrode design e

5、nables reversibility and stability Coulombic Efficiency 99.4%Energy Efficiency89.9%Electrolyte UR94.0%Capacity Fade0.02%Zn-Mn FB:Prolonged testFoam electrodes advantagesStability in alkaline conditionsHigh surface area and homogeneous electric field distributionHigher cycle lifeHigh load of zincZn-M

6、n FB:LODESZn-Mn Flow Battery10 h20 h50 hLi-ionVanadium Flow BatteryTARGET DISCHARGE TIMEChemical Cost ComparisonChemical cost of storage(CCS):Total cost of the anode,cathode,and electrolyte normalized to the stored electrical energy(USD/kWh)02040608010012014012.45.835.71.628.315.