多壳层金属氧化物空心球的合成及其在锂离子电池上的应用
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- 英文论文题名：Multi-Shelled Metal Oxides Prepared For Lithium-Ion Batteries
- 论文作者：王江艳 ; 于然波 ; 赵惠军 ; 王丹
- 英文论文作者：Jiangyan Wang ; Ranbo Yu ; Huijun Zhao ; Dan Wang ; Institute of Process Engineering ; Chinese Academy of Sciences ; University of Science & Technology Beijing ; Centre for Clean Environment and Energy ; Griffith University
- 年：2016
- 作者机构：中国科学院过程工程研究所;北京科技大学物理化学系;格里菲斯大学清洁能源与环境中心;
- 论文关键词：V2O5 ; 锂离子电池 ; 阴离子竞争吸附 ; 多壳层空心结构 ; 碳球模板法
- 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-第四十二分会：能源纳米材料物理化学
- 语种：中文
- 分类号：TM912;O614.511
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第四十二分会 ; 能源纳米材料物理化学
- 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：156k
- 原文格式：D
- 会议级别：全国
摘要
本文采用在碳球模板上的阴离子竞争吸附,结合特洛伊催化燃烧,制备得到V_2O_5以及其他一系列金属氧化物(WO_3、MnO_2、MoO_3)多壳层空心结构。并且通过调控吸附过程以及煅烧过程,实现了产物的壳层数、壳壁厚度、孔径分布以及结晶性等物理参数的调控,并深入研究了其合成机理。将得到的V_2O_5产物用于锂离子电池正极材料,展现了优异的电化学性能。
Owning to its high theoretical capacity, vanadium oxide is widely considered as an attractive cathode candidate. However, the main hindrances for its battery application are the poor capacity retention and low rate capability. Here, we report synthesis of multi-shelled vanadium oxide hollow microsphere. We demonstrate controlled syntheses of several multi-shelled metal oxide hollow microspheres. In particular, the multi-shelled vanadium oxide hollow microspheres exhibit a specific capacity of 447.9 and 402.4 mAh/g for the 1st and 100 th cycle at 1000 mA/g, respectively. The significant performance improvement offers potential to reduce the wide capacity gap often seen between the cathode and anode materials.
Owning to its high theoretical capacity, vanadium oxide is widely considered as an attractive cathode candidate. However, the main hindrances for its battery application are the poor capacity retention and low rate capability. Here, we report synthesis of multi-shelled vanadium oxide hollow microsphere. We demonstrate controlled syntheses of several multi-shelled metal oxide hollow microspheres. In particular, the multi-shelled vanadium oxide hollow microspheres exhibit a specific capacity of 447.9 and 402.4 mAh/g for the 1st and 100 th cycle at 1000 mA/g, respectively. The significant performance improvement offers potential to reduce the wide capacity gap often seen between the cathode and anode materials.
引文
[1]Wang,J.;Tang,H;Zhang,L.;Ren,H.;Yu,R.*;Jin,Q.;Qi,J.;Mao,D.;Yang,M.;Wang,Y.;Liu,P.;Zhang,Y.*,Wen,Y.;Gu,L.;Ma,G.;Su,Z.;Tang,Z.;Zhao,H.;Wang,D.*Nature Energy,2016,Accepted.
[2]Qi,J.;Lai,X.;Wang,J.;Tang,H.;Ren,H.;Yang,Y.;Jin,Q.;Zhang,L.;Yu,R.*;Ma,G.;Su,Z.;Zhao,H.;Wang,D.*Chem.Soc.Rev.2015,44,6749-6773..
[3]Lai,X.;Halpert J.;Wang,D.*Energy Environ.Sci.2012,5,5604-5618.
[2]Qi,J.;Lai,X.;Wang,J.;Tang,H.;Ren,H.;Yang,Y.;Jin,Q.;Zhang,L.;Yu,R.*;Ma,G.;Su,Z.;Zhao,H.;Wang,D.*Chem.Soc.Rev.2015,44,6749-6773..
[3]Lai,X.;Halpert J.;Wang,D.*Energy Environ.Sci.2012,5,5604-5618.