鋰離子電池性能指標Lithium-ionbatteryperformanceindicators主講老師：Lecturer:《儲能電池制造技術》《ManufacturingTechnologyofEnergyStorageBatteries》學習目標鋰離子電池基本性能Basicperformanceoflithium-ionbatteriesLearningObjectives鋰離子電池的安全性能Safetyperformanceoflithium-ionbatteries鋰電性能綜合ComprehensivePerformanceofLithiumBatteriesvPART01鋰離子電池基本性能Basicperformanceoflithium-ionbatteries自放電性能的重要性Theimportanceofself-dischargeperformance儲存性能的影響因素FactorsAffectingStoragePerformance（一）自放電性能與儲存性能Self-dischargeperformanceandstorageperformance一、鋰離子電池基本性能Basicperformanceoflithium-ionbatteries（二）容量與能量密度CapacityandEnergyDensity一、鋰離子電池基本性能Basicperformanceoflithium-ionbatteries容量的定義與影響因素DefinitionofCapacityandItsInfluencingFactors能量密度的分類與意義ClassificationandSignificanceofEnergyDensity（三）循環(huán)壽命與功率密度Cyclelifeandpowerdensity一、鋰離子電池基本性能Basicperformanceoflithium-ionbatteries在一定充放電條件下保持容量的能力，受充放電電流、深度和溫度影響。Theabilitytomaintaincapacityundercertaincharge-dischargeconditionsisinfluencedbycharge-dischargecurrent,depth,andtemperature.循環(huán)壽命Cyclelife（三）循環(huán)壽命與功率密度Cyclelifeandpowerdensity一、鋰離子電池基本性能Basicperformanceoflithium-ionbatteries功率密度反映電池瞬間輸出或接受功率大小，對高功率需求應用至關重要。Powerdensityreflectstheinstantaneouspoweroutputoracceptancecapabilityofabattery,whichiscrucialforhigh-power-demandapplications.功率密度powerdensity（四）高低溫性能Highandlowtemperatureperformance一、鋰離子電池基本性能Basicperformanceoflithium-ionbatteries高低溫環(huán)境下的電池表現高低溫性能影響電池在特殊溫度環(huán)境下的適應性，需通過優(yōu)化提高電池性能。BatteryPerformanceinHighandLowTemperatureEnvironmentsThehighandlowtemperatureperformanceaffectsthebattery'sadaptabilityinextremetemperatureconditions,necessitatingoptimizationtoenhancebatteryperformance.PART02鋰離子電池的安全性能Safetyperformanceoflithium-ionbatteries（一）過充過放安全性Overchargeandoverdischargesafety二、鋰離子電池的安全性能Safetyperformanceoflithium-ionbatteries過充過放會損害電池結構，引發(fā)熱失控，配備保護電路可防止電壓異常。OverchargingandoverdischargingcandamagethebatterystructureofBroussonetiapapyrifera,leadingtothermalrunaway.EquippingaprotectioncircuitcanpreventvoltageabnormalitiesinParazacco

spilurussubsp.spilurus.（二）短路安全性與熱穩(wěn)定性Short-circuitsafetyandthermalstability二、鋰離子電池的安全性能Safetyperformanceoflithium-ionbatteries短路安全性的防護措施Protectivemeasuresforshort-circuitsafety熱穩(wěn)定性的材料選擇與優(yōu)化MaterialSelectionandOptimizationforThermalStability（三）機械安全性Mechanicalsafety二、鋰離子電池的安全性能Safetyperformanceoflithium-ionbatteries電池外殼和內部結構設計需具備抗機械破壞能力，采用高強度材料提高安全性。ThebatterycasingandinternalstructuredesignofBroussonetiapapyriferamustpossessmechanicaldamageresistance,utilizinghigh-strengthmaterialstoenhancesafety.PART03鋰電性能綜合ComprehensivePerformanceofLithiumBatteriesv（一）不同應用場景的需求Requirementsfordifferentapplicationscenarios三、鋰電性能綜合ComprehensivePerformanceofLithiumBatteriesv綜合性能與成本的平衡在設計和選擇電池時，需根據具體應用需求權衡性能指標，實現性能與成本的平衡。BalancingcomprehensiveperformanceandcostWhendesigningandselectingbatteries,itisnecessarytoweighperformanceindicatorsaccordingtospecificapplicationrequirementstoachieveabalancebetweenperformanceandcost.（二）新型材料與優(yōu)化制造NewMaterialsandOptimizedManufacturing三、鋰電性能綜合ComprehensivePerformanceofLithiumBatteriesv01.新型材料的性能Performanceofnewmaterials研發(fā)新型材料時，需同時考慮能量密度、循環(huán)壽命和安全性能的兼顧。Whendevelopingnewmaterials,itisnecessarytosimultaneouslyconsiderthebalancebetweenenergydensity,cyclelife,andsafetyperformance.（二）新型材料與優(yōu)化制造NewMaterialsandOptimizedManufacturing三、鋰電性能綜合ComprehensivePerformanceofLithiumBatteriesv02.制造工藝的改進Improvementofmanufacturingprocesses優(yōu)化電池設計和制造工藝，如提高功率密度和改善高低溫性能，是提升綜合