液流電池的原理Theprincipleofflowbattery《儲能技術(shù)概論》《EnergyStorageTechnology》主講教師：Instructor:

液流電池的原理Theprincipleofflowbattery液流電池儲能系統(tǒng)實物圖

PhysicalpictureofflowbatteryenergystoragesystemCONTENTS液流電池的組成Compositionofflowbatteries01PART液流電池的原理Theprincipleofflowbattery液流電池的特點Characteristicsofflowbatteries液流電池的應(yīng)用Applicationsofflowbatteries02PART03PART04PART目錄液流電池的組成CompositionofflowbatteriesPART01一、液流電池的組成Compositionofflowbatteries液流電池其活性物質(zhì)以液態(tài)形式存在于電解液中，并在電池內(nèi)部循環(huán)流動，通過電化學(xué)反應(yīng)實現(xiàn)電能的儲存和釋放。Inaflowbattery,theactivesubstanceexistsinliquidformintheelectrolyteandcirculatesinsidethebattery,throughwhichelectricenergyisstoredandreleasedbyelectrochemicalreaction.一、液流電池的組成Compositionofflowbatteries液流電池主要由電堆單元、電解液、電解液存儲供給單元以及管理控制單元等部分組成。Flowbatteryismainlycomposedofreactorunit,electrolyte,electrolytestorageandsupplyunitandmanagementcontrolunit.（一）電堆Reactor組成：液流電池的電堆是其核心部分，由多個電池單元組成。每個電池單元通常包括正極、負(fù)極和隔膜。Composition:Thecorepartofaflowbatteryisthestack,whichconsistsofmultiplebatteryunits.Eachbatteryunitusuallyconsistsofapositiveelectrode,anegativeelectrodeandadiaphragm.一、液流電池的組成Compositionofflowbatteries液流電池主要由電堆單元、電解液、電解液存儲供給單元以及管理控制單元等部分組成。Flowbatteryismainlycomposedofreactorunit,electrolyte,electrolytestorageandsupplyunitandmanagementcontrolunit.（一）電堆Reactor功能：實現(xiàn)氧化還原反應(yīng)，將化學(xué)能轉(zhuǎn)化為電能或者將電能轉(zhuǎn)化為化學(xué)能進(jìn)行存儲。Function:torealizeredoxreaction,toconvertchemicalenergyintoelectricenergyortoconvertelectricenergyintochemicalenergyforstorage.一、液流電池的組成Compositionofflowbatteries（二）隔膜Diaphragm功能

function防止電解液混合，允許離子通過。Preventmixingofelectrolyteandallowionstopassthrough.隔膜材料類型Typeofdiaphragmmaterial常見材料包括離子交換膜、微孔膜，材料選擇對電池內(nèi)阻和安全性能至關(guān)重要。Commonmaterialsincludeionexchangemembraneandmicroporousmembrane.Materialselectioniscrucialtobatteryinternalresistanceandsafetyperformance.高性能隔膜意義Significanceofhighperformance確保電池運(yùn)行穩(wěn)定性，提高能量轉(zhuǎn)換效率。Ensurethestabilityofbatteryoperationandimproveenergyconversionefficiency.一、液流電池的組成Compositionofflowbatteries（三）電解液循環(huán)系統(tǒng)Electrolytecirculationsystem電解液循環(huán)系統(tǒng)包括儲罐和泵，通過泵送系統(tǒng)，電解液能夠在電堆和儲罐之間不斷循環(huán)，確保氧化還原反應(yīng)的持續(xù)進(jìn)行。Theelectrolytecirculationsystemconsistsofastoragetankandapump,throughwhichtheelectrolytecanbecontinuouslycirculatedbetweenthereactorandthestoragetank,ensuringthecontinuousREDOXreaction.液流電池的原理TheprincipleofflowbatteryPART02二、液流電池的原理Theprincipleofflowbattery液流電池通過正、負(fù)極電解液中的活性物質(zhì)發(fā)生氧化還原反應(yīng)實現(xiàn)電能和化學(xué)能的相互轉(zhuǎn)化，進(jìn)而實現(xiàn)電能的儲存和釋放。FlowbatteryrealizesthemutualconversionofelectricenergyandchemicalenergythroughtheREDOXreactionofactivesubstancesinthepositiveandnegativeelectrolyte,soastorealizethestorageandreleaseofelectricenergy.二、液流電池的原理Theprincipleofflowbattery充電：化學(xué)能的儲存Charging:Storageofchemicalenergy充電時，外部電源驅(qū)動正負(fù)極活性物質(zhì)價態(tài)變化，將電能轉(zhuǎn)化為化學(xué)能儲存在電池中。Duringcharging,theexternalpowersupplydrivesthevalencestatechangeofthepositiveandnegativeelectrodeactivesubstances,andconvertstheelectricenergyintochemicalenergystoredinthebattery.放電：化學(xué)能轉(zhuǎn)電能過程Discharge:theprocessofconvertingchemicalenergyintoelectricalenergy電池工作時，正極還原反應(yīng)與負(fù)極氧化反應(yīng)發(fā)生，通過離子交換膜持續(xù)循環(huán)，實現(xiàn)化學(xué)能向電能的轉(zhuǎn)化。Whenthebatteryisworking,thepositiveelectrodereductionreactionandthenegativeelectrodeoxidationreactionoccur,andthechemicalenergyiscontinuouslyconvertedtoelectricenergythroughtheionexchangemembrane.液流電池的特點CharacteristicsofflowbatteriesPART03三、液流電池的特點Characteristicsofflowbatteries01水相電解液安全：液流電池常溫運(yùn)行，使用水相電解液，無燃燒爆炸風(fēng)險。Safetyofaqueouselectrolyte:Flowbatteriesoperateatroomtemperatureanduseaqueouselectrolytewithoutriskofcombustionorexplosion.02大規(guī)模儲能設(shè)計：液流電池功率和儲能容量可獨(dú)立設(shè)計，靈活性高，適合大規(guī)模儲能需求。Large-scaleenergystoragedesign:Thepowerandenergystoragecapacityofflowbatteriescanbedesignedindependently,withhighflexibility,suitableforlarge-scaleenergystorageneeds.三、液流電池的特點Characteristicsofflowbatteries03長壽命循環(huán)電池：液流電池使用壽命長達(dá)15000個循環(huán)，約10-20年，因不發(fā)生相變化，電池?fù)p耗小。Longlifecyclebattery:Theservicelifeofflowbatteryisupto15,000cycles,about10-20years,becausethereisnophasechange,thebatterylossissmall.04環(huán)保材料循環(huán)利用：液流電池環(huán)保且資源利用率高，釩離子可循環(huán)使用，電池材料豐富易回收。Recyclingofenvironmentalprotectionmaterials:Theflowbatteryisenvironmentallyfriendlyandhashighresourceutilizationrate.Vanadiumionscanberecycled,andthebatterymaterialsareabundantandeasytorecycle.液流電池的應(yīng)用ApplicationsofflowbatteriesPART04四、液流電池的應(yīng)用Applicationsofflowbatteries相較于鋰離子電池，液流電池具備更長續(xù)航和快速充電優(yōu)勢。美國正研發(fā)納米電燃料電池，計劃未來應(yīng)用于電動軍事和民用車輛。Comparedwithlithium-ionbatteries,flowbatterieshavetheadvantagesoflongerenduranceandfastcharging.TheUnitedStatesisdevelopingnano-electricfuelcells,whichareplannedtobeusedinelectricmilitaryandcivilianvehiclesinthefuture.作為電動汽車動力源，實現(xiàn)可再生能源儲能，解決鋰離子電池續(xù)航問題。瑞士某車企已展示液流電池潛力，單次續(xù)航2000公里。Asapowersourceforelectricvehicles,itcanrealizeenergystorageofrenewableenergyandsolvetheproblemoflithiumionbatteryendurance.ASwisscarcompanyhasdemonstratedthepotentialofaflowbatterywitharangeof2,000kilometers.電網(wǎng)儲能

Gridenergystorage四、液流電池的應(yīng)用Applicationsofflowbatteries北京綠釩新能源科技全釩液流電池用于電網(wǎng)儲能，風(fēng)電儲能，實現(xiàn)“削峰填谷”，支持可再生能源發(fā)展。ThevanadiumliquidflowbatteryofBeijingLvanaNewEnergyTechnologyisusedforpowergridenergystorageandwindpowerenergystorage