porous electrode materials for lithium-ion batteries

《porous electrode materials for lithium-ion batteries》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、www.advenergymat.dewww.MaterialsViews.comREVIEWPorousElectrodeMaterialsforLithium-IonBatteriesHowtoPrepareThemandWhatMakesThemSpecialAnhVu,YuqiangQian,andAndreasStein*followinga“rockingchair”conceptwithanNumerousbenefitsofporouselectrodematerialsforlithiumionba

2、tteriesinitialchargingstep,duringwhichlithium(LIBs)havebeendemonstrated,includingexamplesofhigherratecapabili-ionsareextractedfromLiMO2(M=Co,Ni,Mn)andintercalateintographite,andties,bettercyclelives,andsometimesgreatergravimetriccapacitiesataasubsequentdischar

3、gingstep,duringgivenratecomparedtononporousbulkmaterials.ThesepropertiespromisewhichlithiumionsdeintercalatefromtheadvantagesofporouselectrodematerialsforLIBsinelectricandhybridgraphiteparticlesandarereintroducedelectricvehicles,portableelectronicdevices,andst

4、ationaryelectricalenergyintothelayeredLiMOstructure.[1]Both1-x2storage.Thisreviewhighlightsmethodsofsynthesizingporouselectrodeelectrodesarecomposedofmicrometer-materialsbytemplatingandtemplate-freemethodsanddiscusseshowthesizedactiveparticles,mixedwithconduc-

5、tivecarbonparticlestolowertheelectricalstructuralfeaturesofporouselectrodesinfluencetheirelectrochemicalprop-resistancewiththeelectrodes,andhelderties.Asectiononelectrochemicalpropertiesofporouselectrodesprovidestogetherbyabinderphase.Eachcellcanexamplesthatill

6、ustratetheinfluenceofporeandwallarchitectureandinter-bedischargedandrechargedformanyconnectivity,surfacearea,particlemorphology,andnanocompositeformationcyclesaslongasthecathodeandanodeontheutilizationoftheelectrodematerials,specificcapacities,ratecapa-donotunde

7、rgosignificantstructuralchanges.bilities,andstructuralstabilityduringlithiationanddelithiationprocesses.NumerousapplicationsarenowputtingRecentapplicationsofporoussolidsascomponentsforthree-dimensionallyincreaseddemandsonelectricalenergyinterpenetratingbatterya

8、rchitecturesarealsodescribed.storagedevices,callingforhigherspecificcapacitiesandfasterrateperformance.[2]Theserequirementsareparticularly1.Introductionimportantforelectricvehicles(