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1、JournalofAdvancesinPhysicalChemistry物理化学进展,2017,6(2),52-59PublishedOnlineMay2017inHans.http://www.hanspub.org/journal/japchttps://doi.org/10.12677/japc.2017.62007SupercriticalCO2DepositionofCathodeMaterialsforLithium-SulfurBatteryJunjunZhao1,YunZhu1,LipingKong1,Chengc
2、hengWang1,FeilongGong2,XiangrongYe1*1KeyLaboratoryoftheMinistryofEducationforAdvancedCatalysisMaterials,InstituteofPhysicalChemistry,ZhejiangNormalUniversity,JinhuaZhejiang2SchoolofMaterialandChemicalEngineering,ZhengzhouUniversityofLightIndustry,ZhengzhouHenanthththR
3、eceived:Apr.27,2017;accepted:May13,2017;published:May.16,2017AbstractOnaccountofitssurpassingtheoreticalspecificcapacity(1675mAh/g)andenergydensity(2600wh/Kg),lithium-sulfur(Li-S)batteryhasattractedextensiveattentionnowadays.However,itspracticalapplicationishinderedby
4、theelectricinsulativityofsulfurandLi2Saswellasthewell-knownshuttleeffect.Inthiswork,anovelmethod,supercriticalCO2(SCCO2)assistedpreci-pitation,isreportedtoloadsulfurontocommercialactivatedcarbon(QR1500)ascathodema-terialofLi-Sbattery,whichexhibitsimprovedcyclingperfor
5、mance.SCCO2provideslowviscosity,lowsurfacetensionandhighdiffusivitylikegasaswellasappreciabledensityandsolvationpow-erlikeliquid,enablinguniformdispersionofsulfurintoporousQR1500andintimatecontactofsulfurwithcarbon.AscathodematerialsofLi-Sbattery,theresultantcomposite
6、givesrisetoaninitialdischargecapacityof810mAh/gat0.5˚C,whichishigherthanthatof139mAh/gforitscounterpartpreparedbytraditionalmeltinginfiltration.Furthermore,55%ofcapacitywaspre-servedafter150cycles.KeywordsSupercriticalCO2,Sulfur,ActivatedCarbon,CathodeMaterial,Li-SBat
7、teries活性炭载硫材料的超临界二氧化碳制备及在锂硫电池中的应用111121*赵俊俊，朱允，孔丽萍，王呈呈，巩飞龙，叶向荣1浙江师范大学物理化学研究所，先进催化材料教育部重点实验室，浙江金华2郑州轻工业学院，材料与化学工程学院，河南郑州*通讯作者。文章引用:赵俊俊,朱允,孔丽萍,王呈呈,巩飞龙,叶向荣.活性炭载硫材料的超临界二氧化碳制备及在锂硫电池中的应用[J].物理化学进展,2017,6(2):52-59.https://doi.org/10.12677/japc.2017.62007赵俊俊等收稿日期：2017年4月27日；录
8、用日期：2017年5月13日；发布日期：2017年5月16日摘要锂硫(Li-S)电池因其理论比容量和能量密度分别高达1675mAh/g和2600wh/Kg而备受关注，但硫与放电最终产物Li2S的电子绝缘性以及“穿梭效应”使其实际应用存在较大困难。为
