英语学术写作作业二

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1、英语学术写作作业二中英文文献摘要的对比MG1134034杨华珍Native(1)HighrateperformanceofLi1.05Ni1/3Co1/3Mn1/3O2cathodematerialsIntroduction提出这篇文章研究的目的是要制备高性能的三元正极材料preparedusingsol-gel(SG)andco-precipitation(CP)methodswereinvestigated.Scanningelectronmicroscopyresultsshowedthattheparticlesizesofthematerials

2、preparedbySGandCPmethodswere300–400nmand1–2μm,respectively.Ratecapabilitytestswereperformedandcomparedonthesecathodematerialswithsameelectrodeloading(7mgcm-2).Li1.05Ni1/3Co1/3Mn1/3O2cathodewithsmallerparticlesize(SG-nano)demonstratedhigherdischargecapacitythanthatofthecathodewithla

3、rgerparticlesize(CP-micro)atdifferentCrates.However,uponextendedcyclingat1Cand8C,CP-microshowedbettercapacityretentionwhencomparedtothatofSG-nano.CP-microexhibited95and91%whereasSG-nanoexhibitedonly87and76%,respectively,at1Cand8Cafter50cycles.Methods详细阐述了如何解决实现这个目标（溶胶凝胶法，共沉淀法），数据，

4、研究方法TheresultsshowedthattheuseofnanosizedmaterialswasadvantageousforobtainingabetterratecapabilitywhereastheuseofmicrosizedmaterialswasbeneficialforbettercapacityretentionduringextendedcyclingathighC-rates.Results概括一下自己的结果(2)Oneofthechallengesforimprovingtheperformanceoflithiumionba

5、tteriestomeetincreasinglydemandingrequirementsforenergystorageisthedevelopmentofsuitablecathodematerials.Cathodematerialsmustbeabletoacceptandreleaselithiumionsrepeatedly(forrecharging)andquickly(forhighcurrent).Transitionmetaloxidesbasedonthe_-NaFeO2,spinelandolivinestructureshave

6、shownpromise,butimprovementsareneededtoreducecostandextendeffectivelifetime.Inthispaper,recentdevelopmentsincathodematerialsforlithiumionbatteriesarereviewed.Introduction提出研究高性能正极材料的目的，层状结构在快速从放电的优势所在Thisincludescomparisonoftheperformancecharacteristicsofthepromisingcathodematerial

7、sandapproachesforimprovingtheirperformances.Discussion讨论此种材料对锂电行业未来发展的贡献（即，提高电性能）(3)InthispaperwereportthestudyofahighcapacitySn-Cnanostructuredanodeandofahighrate,highvoltageLi[Ni0.45Co0.1Mn1.45]O4spinelcathode.Introduction提出这篇文章研究的目的是要制备高性能的三元正极材料Wehavecombinedtheseanodeandcathod

8、ematerialsinanadvancedlith