锂离子电池正极材料LiFePO4的制备及其电化学研究

来源 :中国化学会第十七次全国电化学大会 | 被引量 : 0次 | 上传用户：sephinroth

【摘要】

：

LiFePO4作为一种新型的锂离子电池正极材料,以其原料来源广、热稳定性高、环境友好无污染等优点而成为最具潜力的正极材料之一.以矿石的形式存在于自然界中的LiFePO4,由于杂质含量高,导电性能差,不能直接作为锂离子电池正极材料使用,作为电池正极材料使用的LiFePO4基本上都是由人工合成的.

【作者】

：

马君君高严英姜倩倩王兴尧

【机构】

：

天津大学理学院化学系化工学院,天津,300072

【出处】

：

中国化学会第十七次全国电化学大会

【发表日期】

：

2013年2期

下载到本地 , 更方便阅读

下载此文赞助VIP

声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架

论文部分内容阅读

其他文献

Control on the morphology and nanostructure of block copolymer PS-PLA

Block copolymers are composed of two or more chemically distinct homopolymers bonded covalently.The different components can self-assemble into a variety of ordered strctures in nanometcr scale with c

会议

block copolymerpolystyrene-polylactide (PS-PLA)thin filmorientation

Composites of Carbon Nanosheets and Metal or Metal Oxide: Syntheses and Applications

Two dimensional (2D) nanoarchitectures have attracted much attention owing to their unique structure, morphology, and potential applications.Herein, a novel 2D carbon nanosheets are produced through a

会议

two-dimensionalcarbon nanosheetscompositessurface enhanced Raman scatteringe

Carbon Nanodots-Catalyzed Chemiluminescence of Luminol and its analytical application

Carbon nanodots (CDs) are a new class of zero-dimensional, discrete and almost spherical carbon nanomaterials with sizes below 10 nm.Compared with those heavy-metal-based quantum dots, CDs have the su

会议

Carbon nanodotsCatalysisLuminol chemiluminescence

Graphene Oxide and Label-free Aptamer Based Platform for the Adenosine Detection Combined with Exonu

We developed a graphene oxide (GO) and label-free aptamer based method for the fluorescence turn-on sensing of adenosine combined with exonuclease I (Exo I).This nearly universal biosensor approach is

会议

Graphene oxidelabel-free aptamerexonuclease Iadenosine detection

Amplified Fluorescent Sensing of Potassium Ion using Graphene Oxide and a Conjugated Cationic Polyme

We explore the interactions between a fluorescein (FAM) labeled guanine(G)-rich oligonucleotide sequences (P), graphene oxide (GO) and a cationic conjugated polymer, poly [(9, 9-bis (6-N, N, N-trimeth

会议

Graphene oxidecationic conjugated polymerfluorescence resonance energy transfe

Different Effects of Substrates on the Morphologies of Single-Walled Carbon Nanotubes

In this work, different effects of substrates on the morphologies of single-walled carbon nanotubes (SWNTs) are studied.SWNTs were produced by floating catalytic chemical vapor deposition using CH4 as

会议

single-walled carbon nanotubefloating catalytic chemical vapor depositionmetal

Synthesis and Characterization of Amphiphilic Functionalized Graphene

Graphene and its derivatives have been regarded as the next-generation material for flexible nanoelectronic devices and one of the next-generation fillers for polymer nanocomposites to improve the mec

会议

Graphite oxideAmphiphilic functionalized grapheme56-diaminopyrazine-23-dicar

Field emission properties of vertical graphene-ZnO nanocomposites synthesized by magnetron sputterin

ZnO was synthesized on Si (100) substrate coated with vertical graphene (VG) by magnetron sputtering method.VG-ZnO nanocompositos were obtained with different morphology by controlling the preparation

会议

Field emissionGrapheneZinc oxideNanocompositeMagnetron sputtering

锂离子电池电极改性用包覆或掺杂材料的负面作用

物理掺杂或者包覆是常见的改进锂离子电池正负极材料电化学性能的方法,如利用Ag包覆办法改进尖晶石锰酸锂的电化学性能,利用碳包覆改进磷酸铁锂的高倍率特性,等等.单纯的从改进电极性能的角度看,很多物理掺杂或者包覆方法是很有效的,但是,如果将电极材料置于真正的电池体系中以后,这种物理掺杂或者包覆对隔膜以及对电极的影响就不得不考虑在内了.

会议

锂离子电池富锂层状正极材料的合成及其电化学性能研究

富锂层状正极材料是一种新型的锂离子电池正极材料,因其具有理论容量高(＞200mAh/g)、低成本、充放电电压高(＞3.5V vs Li/Li+)等优点,已广泛成为人们的研究热点[1-2].Kim等[3]通过共沉淀法合成了0.3Li2MnO3·0.7LiMn1-xNiyCo0.1O2(x=0.3,y=0.2),2.0～4.6 V时放电容量为200 mAh/g；Kang等[4]采用溶胶凝胶法合成了0.

会议

锂离子电池正极材料LiFePO4的制备及其电化学研究

其他学术论文