硬碳材料在鋰離子電池負(fù)極中的應(yīng)用研究.pdf

1、硬碳材料在鋰離子電池負(fù)極中的應(yīng)用研究TheApplicationofHardCarbonontheAnodeofLithium—IonBattery姓名指導(dǎo)教師指導(dǎo)小組成員院系專業(yè)研究方向完成時(shí)間：江文鋒：胡建華教授：楊東副教授：高分子科學(xué)系：化學(xué)工程：鋰離子電池材料：2013年5月10日復(fù)量大學(xué)I程碩士論嫩AbstractLithiumionbatterypossessesmanyuniqueadvantages，suchaslong

2、cyclelife，nomemoryeffect，highspecificenergy，etcItplaysamoreandmoreimportantroleinpeople’SlifeLithiumionbatteryhasbeenwidelyusedinconsumerelectronicproducts，suchasmobilephone，digitalcamera，portablenotebookcomputerAtthesam

3、etime，lithiumionbatteryisconsideredtobeanidealpowersourceforelectricvehicleTheanodematerial，animportantpartoflithiumionbattery，affectstheperformanceoflithiumionbatteryAtpresent，graphiteisdominantonthemarketHoweverthepoor

4、lowtemperatureperformanceofgraphiteanodeandeasilyproduceinglithiumdendritesontheanodesurface，andotherproblemshinderedthedevelopmentandexpansionofapplicationscopeoflithiumionbatteryUnderthisbackground，thisdissertationfocu

5、sesontheapplicationofhardcarbonmaterialsasanodeinlithiumionbatteryHardcarbonwasmixedwithgraphitetopreparecompositeanodematerialshardcarbon／graphitehybridtechnology，aswellastheperformanceoflithiumionbatteryusingcarbon／gra

6、phitecompositeasanodearestudiedindetail，includingthefollowingtwoparts：(1)Firstly，thephysicalpropertiesofhardcarbonandgraphitewerecharacterizedindetailICPresultsshowedthatthecontentofmetalimpuritiesintwomaterialsarerarely

7、，below10ppm，achievestherequirementsofindustrialproductionoflithiumionbatteryDifferentproportionofgraphiteandhardcarbonaremixed，thephysicalandelectricalpropertiesoftheslurryandthenegativeplatewerestudied，whichdeterminedth

8、attheoptimalmixingratioofhardcarbonis15％(2)Thehardcarbon／graphite(15％：85％)compositematerialisusedasanodetoprepareexperimentallithiumionbattery，whileusingpuregraphiteasanodetopreparethecontrasttestbatteriesaseriesofelectr