《储能电池制备双语课程》课件-1.3.2锂离子电池性能指标评判

锂离子电池性能指标Lithium-ionbatteryperformanceindicators主讲老师：Lecturer:《储能电池制造技术》《ManufacturingTechnologyofEnergyStorageBatteries》学习目标锂离子电池基本性能Basicperformanceoflithium-ionbatteriesLearningObjectives锂离子电池的安全性能Safetyperformanceoflithium-ionbatteries锂电性能综合ComprehensivePerformanceofLithiumBatteriesvPART01锂离子电池基本性能Basicperformanceoflithium-ionbatteries自放电性能的重要性Theimportanceofself-dischargeperformance储存性能的影响因素FactorsAffectingStoragePerformance（一）自放电性能与储存性能Self-dischargeperformanceandstorageperformance一、锂离子电池基本性能Basicperformanceoflithium-ionbatteries（二）容量与能量密度CapacityandEnergyDensity一、锂离子电池基本性能Basicperformanceoflithium-ionbatteries容量的定义与影响因素DefinitionofCapacityandItsInfluencingFactors能量密度的分类与意义ClassificationandSignificanceofEnergyDensity（三）循环寿命与功率密度Cyclelifeandpowerdensity一、锂离子电池基本性能Basicperformanceoflithium-ionbatteries在一定充放电条件下保持容量的能力，受充放电电流、深度和温度影响。Theabilitytomaintaincapacityundercertaincharge-dischargeconditionsisinfluencedbycharge-dischargecurrent,depth,andtemperature.循环寿命Cyclelife（三）循环寿命与功率密度Cyclelifeandpowerdensity一、锂离子电池基本性能Basicperformanceoflithium-ionbatteries功率密度反映电池瞬间输出或接受功率大小，对高功率需求应用至关重要。Powerdensityreflectstheinstantaneouspoweroutputoracceptancecapabilityofabattery,whichiscrucialforhigh-power-demandapplications.功率密度powerdensity（四）高低温性能Highandlowtemperatureperformance一、锂离子电池基本性能Basicperformanceoflithium-ionbatteries高低温环境下的电池表现高低温性能影响电池在特殊温度环境下的适应性，需通过优化提高电池性能。BatteryPerformanceinHighandLowTemperatureEnvironmentsThehighandlowtemperatureperformanceaffectsthebattery'sadaptabilityinextremetemperatureconditions,necessitatingoptimizationtoenhancebatteryperformance.PART02锂离子电池的安全性能Safetyperformanceoflithium-ionbatteries（一）过充过放安全性Overchargeandoverdischargesafety二、锂离子电池的安全性能Safetyperformanceoflithium-ionbatteries过充过放会损害电池结构，引发热失控，配备保护电路可防止电压异常。OverchargingandoverdischargingcandamagethebatterystructureofBroussonetiapapyrifera,leadingtothermalrunaway.EquippingaprotectioncircuitcanpreventvoltageabnormalitiesinParazacco

spilurussubsp.spilurus.（二）短路安全性与热稳定性Short-circuitsafetyandthermalstability二、锂离子电池的安全性能Safetyperformanceoflithium-ionbatteries短路安全性的防护措施Protectivemeasuresforshort-circuitsafety热稳定性的材料选择与优化MaterialSelectionandOptimizationforThermalStability（三）机械安全性Mechanicalsafety二、锂离子电池的安全性能Safetyperformanceoflithium-ionbatteries电池外壳和内部结构设计需具备抗机械破坏能力，采用高强度材料提高安全性。ThebatterycasingandinternalstructuredesignofBroussonetiapapyriferamustpossessmechanicaldamageresistance,utilizinghigh-strengthmaterialstoenhancesafety.PART03锂电性能综合ComprehensivePerformanceofLithiumBatteriesv（一）不同应用场景的需求Requirementsfordifferentapplicationscenarios三、锂电性能综合ComprehensivePerformanceofLithiumBatteriesv综合性能与成本的平衡在设计和选择电池时，需根据具体应用需求权衡性能指标，实现性能与成本的平衡。BalancingcomprehensiveperformanceandcostWhendesigningandselectingbatteries,itisnecessarytoweighperformanceindicatorsaccordingtospecificapplicationrequirementstoachieveabalancebetweenperformanceandcost.（二）新型材料与优化制造NewMaterialsandOptimizedManufacturing三、锂电性能综合ComprehensivePerformanceofLithiumBatteriesv01.新型材料的性能Performanceofnewmaterials研发新型材料时，需同时考虑能量密度、循环寿命和安全性能的兼顾。Whendevelopingnewmaterials,itisnecessarytosimultaneouslyconsiderthebalancebetweenenergydensity,cyclelife,andsafetyperformance.（二）新型材料与优化制造NewMaterialsandOptimizedManufacturing三、锂电性能综合ComprehensivePerformanceofLithiumBatteriesv02.制造工艺的改进Improvementofmanufacturingprocesses优化电池设计和制造工艺，如提高功率密度和改善高低温性能，是提升综合