新型锂离子电池材料的合成与其性质分析

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1、AbstractNanomaterialsaret11ematerialswhichatleastoneoftheirthreedimensionsismthenanoscle(1．1OOnm)．Whensizeofthematerialsisinthenanoscale，thesematerialsoftenshowsomespecialpropertiesinelectricity,optics，magnetics，mecha血cs，andeven，biology,andSOon，whichdifferentfromthepropertiesofatoms，m01eculesand

2、solidmaterials．Differentfromconditionalmaterials，thequantumsizeeffeCt．small．sizeeffect，surfaceeffect，macroscopicquantumtunnelingeffect，anddielectricconfinementeffectofnanomaterialsarethebasicpropertiesofnanoparticlesandnanosolids．Besides，thesepropertiesmakenanomaterialsexhibitmanyparticularphysi

3、calandchemicalproperties．Therefore，inrecentyears，r姗omaterialsdrewmoreandmorepeople’sattentiontostudywiththem·ThispapermainlystudiesintheapplyingofnanomaterialsinLi-ionbatteriesaselectrodematerials；thereisalsoarelationalworkinphotoluminescence·Nallomaterialsweresynthesizedviahydrothermal／solvothe

4、rmalmethod．SEM，TEM，HRTEM，XRD，XPSetc．wereusedtocharacterizethemorphologyandstructureoftheproducts．Wealsocarriedoutsomeexperimentstotesttheelectrochemicalandopticalpropertiesofobtainednanomaterials．Flo、Ⅳer_likeNiOmicrospheresweresynthesizedviaaone-stepsolvothermalrouteu11dercon：c】『olledconditioIlS

5、，theirdiameterswere---50nm．Duringthisprocedurethes耐．ac位mtswereusedastemplatestosupplygrowthsitesandtorestrictthegrowthdirections．NiOmicrosphereswerefinallyobtainedwithfurthercalcination．TheuniquenanostructuremakesNiOmicrospherespresentsuperiorListorageperf．0眦a11Cesatinitialcharge／dischargecycles

6、andfurtherimprovementmcyclicstabilityisstillneeded．TwodifferentmorphologySnS2nanostructurematerialsweresynthesizedthroughhydrothermal／solvothermalprocess．SEM，TEM，XRDetc．wereusedtocharacterizethemorphologyandstructureofthetwoproducts，respectively．Andtheelectrochemicalpropertiesoftwoproductswerete

7、sted．ThetwotypesofSnS2obtainedthroughthisprocessexhibitgoodpurity,goodcrystallinity,specialⅡAbstractmorphology,anduniformsize．Theelectrochemicalpropertiesoftwoproductswererelativelygood，andthereisspaceforfurtherimprovement．M