新型锂离子电池电极材料的结构设计及性能调控
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- 英文论文题名：The structure design and electrochemcial performance of novel electrode materials for Li-ion batteries
- 论文作者：刘军 ; 胡仁宗 ; 杨黎春 ; 朱敏
- 英文论文作者：Jun Liu ; Renzong Hu ; Lichun Yang ; Min Zhu ; School of Materials Science and Engineering and Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials ; South China University of Technology
- 年：2016
- 作者机构：华南理工大学材料科学与工程学院广东省先进储能材料重点实验室;
- 论文关键词：锂离子电池 ; 正极 ; 负极 ; 多孔材料 ; 碳包覆 ; 结构设计
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第三十分会：化学电源
- 语种：中文
- 分类号：TM912
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十分会 ; 化学电源
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：184k
- 原文格式：D
- 会议级别：全国
摘要
开发具有良好安全性、长寿命以及高倍率性能的锂离子电池对于大多数电池应用领域具有十分重要的意义,特别是在便携式设备、电动汽车和混合动力电动汽车领域。尽管目前锂离子电池体系己经得到了巨大的长足发展,但其能量密度、循环寿命和速度能力仍然不足。由于电池的性能主要取决于阳极和阴极材料。为进一步提高锂离子电池的性能,必须大力开发具有较高可逆容量和倍率性能的电极材料。在此,我们将介绍我们最近的研究进展,以一些新型的负极和正极材料(如Si、Ge、Sn、Fe_3O_4、Li_4Ti_5O_(12)、FeS_2、Co_9S_8)为研究对象,通过合理的结构设计和化学合成,成功构建了一系列具有三维多孔结构和导电材料包覆的锂离子电池电极,实现了电池的锂离子存储性能的显著提高~([1-7])。
The development of high rate Li-ion batteries with improved safety and a long cycle life is essential for most battery applications,in particular for portable devices,electric vehicles and hybrid electric vehicles.Although the progress of Li-ion batteries development is substantial,their energy density,cycle life and rate capability remain insufficient.To obtain a further noticeable improvement in Li-ion batteries,it is essential to develop electrode materials with higher reversible capacity and rate capability,as the battery's performance is mainly determined by the anode and cathode.Herein,we summarize our recent progress in the structural design,chemical synthesis,and electrochemical properties of some typical anode and cathode materials(i.e.Si,Ge,Sn,Fe_3O_4,Li_4Ti_5O_(12),FeS_2,Co_9S_8) via constructing 3D porous and conductive material-coated structures.[1-7]By highly porous microstructure and rational carbon coating design,the Li-ion storage performance of these electrode materials were significantly improved.
The development of high rate Li-ion batteries with improved safety and a long cycle life is essential for most battery applications,in particular for portable devices,electric vehicles and hybrid electric vehicles.Although the progress of Li-ion batteries development is substantial,their energy density,cycle life and rate capability remain insufficient.To obtain a further noticeable improvement in Li-ion batteries,it is essential to develop electrode materials with higher reversible capacity and rate capability,as the battery's performance is mainly determined by the anode and cathode.Herein,we summarize our recent progress in the structural design,chemical synthesis,and electrochemical properties of some typical anode and cathode materials(i.e.Si,Ge,Sn,Fe_3O_4,Li_4Ti_5O_(12),FeS_2,Co_9S_8) via constructing 3D porous and conductive material-coated structures.[1-7]By highly porous microstructure and rational carbon coating design,the Li-ion storage performance of these electrode materials were significantly improved.
引文
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[7]Liu,J.;Wu,C.;Xiao,D.;Kopold,P.;Gu,L.;van Aken,P.A.;Maier,J.;Yu,Y.2016,in press,doi:10.1002/smll.201503821.
[2]Liu,J.;Song,K.;Van Aken,P.A.;Maier J.;Yu,Y.Nano Lett.,2014,14:2597.
[3]Liu,J.;Wen,Y.;van Aken,P.A.;Maier J.;Yu,Y.Nano Lett.,2014,14:6387.
[4]Liu,J.;Wen,Y.;Wang,Y.;van Aken,P.A.;Maier J.;Yu,Y.Adv.Mater.,2014,26:6025.
[5]Liu,J.;Kopold,P.;van Aken,P.A.;Maier J.;Yu,Y.Angew.Chem.Int.Ed.,2015,54:9632.
[6]Liu,J.;Xu,X.;Hu R.;Yang,L.;Zhu,M.Adv.Energy Mater,2016,in press,doi:10.1002/aenm.201600256.
[7]Liu,J.;Wu,C.;Xiao,D.;Kopold,P.;Gu,L.;van Aken,P.A.;Maier,J.;Yu,Y.2016,in press,doi:10.1002/smll.201503821.