2022退役锂离子电池回收与资源化技术

退役锂离子电池回收与资源化技术退役锂离子电池回收与资源化技术IIIIV目录IV总结与展望III北理工课题组电池回收最新进展II锂离子电池回收与再生技术I行业发展与研究背景IIIIV目录IV总结与展望III北理工课题组电池回收最新进展II锂离子电池回收与再生技术I行业发展与研究背景第九届中国国际储能大会2019.4.24-263CategoriesMaterialsPropertiesPotentialenvironmentalpollutionCathodematerialLiCoO2/LiMn2O4/LiNiO2/LiNiCoMnO2Reactswithwater,acids,reducingagentsor第九届中国国际储能大会2019.4.24-263CategoriesMaterialsPropertiesPotentialenvironmentalpollutionCathodematerialLiCoO2/LiMn2O4/LiNiO2/LiNiCoMnO2Reactswithwater,acids,reducingagentsorstrongoxidizingagents(hydrogenperoxide,chlorate,etc.)toproduceharmfulmetaloxides.HeavymetalpollutionraisestheenvironmentalpHAnodematerialCarbonmaterial/graphite,lithiumintercalationincaseoffireorhightemperature,dustcanexplodeandreactwithstrongacidandstrongalkalitoproducegasessuchasCOandCO2.TheCOandsoliddustparticlesproducedbythecombustionoftheanodematerialcontaminatetheair.ElectrolyteLiPF6/LiBF4/LiAsF6ItishighlycorrosiveandcanproduceHFwhenexposedtowater,andcanbeoxidizedtoproducetoxicsubstancessuchasP2O5,Li2O,B2O3FluorinepollutionchangesthepHoftheenvironment,andthetoxicgasgeneratedpollutestheairandstimulatesthehumanbodythroughtheskinandbreathing.ElectrolytesolventEthylenecarbonate/Propylenecarbonate/DimethylcarbonateThehydrolyzateproducesaldehydesandacids,whichcanproduceCO,CO2,etc.Organicmattersuchasaldehydes,ketones,andmethanolSeparatorPP/PECombustioncanproduceCO,aldehyde,etc.OrganicpollutionBinderPVDF、VDF、EPDItcanreactwithfluorine,fumingsulfuricacid,strongalkali,alkalimetal,anddecomposebyheattoproduceHF.ThermaldecompositionproducesHFandfluorinepollution445566DiagrammaticsketchofreactionmechanismPossiblestructuresofthereactionproducts9DiagrammaticsketchofreactionmechanismPossiblestructuresofthereactionproducts912121313I.梯次利用Howtoreusetheseremainingpowerforapowerbatterythatalsohas80%power.安全拆解——Avoidsafetyaccidentssuchasfireandexplosion,andatthesametimetakeintoaccountautomationefficiencyissues.I.梯次利用Howtoreusetheseremainingpowerforapowerbatterythatalsohas80%power.安全拆解——Avoidsafetyaccidentssuchasfireandexplosion,andatthesametimetakeintoaccountautomationefficiencyissues.材料纯度——Getgoodimpurityremovaleffectbysimplemethod二次污染——Avoidtoxicandharmfulgasesandwasteliquids,etc.复杂材料——Thediversityofcathodematerialsmakesrecoverydifficult,lessrecoveryforthenegativeelectrodeandelectrolyte环境经济效应——Effectivelyimprovetheeconomicsandreflectingtheenvironmentalbenefitsofrecy