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| Content Provider | Springer Nature Link |
|---|---|
| Author | Zhong, Shengkui Li, Fengpeng Liu, Jiequn Li, Yanhong Deng, Xingsheng |
| Copyright Year | 2009 |
| Abstract | Y-doped LiVPO$_{4}$F cathode materials were prepared by a carbothermal reduction(CTR) process. The properties of the Y-doped LiVPO$_{4}$F samples were investigated by X-ray diffraction (XRD) and electrochemical measurements. XRD studies show that the Y-doped LiVPO$_{4}$F samples have the same triclinic structure as the undoped LiVPO$_{4}$F. The Li extraction/insertion performances of Y-doped LiVPO$_{4}$F samples were investigated through charge/discharge, cyclic voltammogram (CV), and electrochemical impedance spectra(EIS). The optimal doping content of Y is x=0.04 in LiY$_{ x }$V$_{1−x }$PO$_{4}$F system. The Y-doped LiVPO$_{4}$F samples show a better cyclic ability. The electrode reaction reversibility is enhanced, and the charge transfer resistance is decreased through the Y-doping. The improved electrochemical performances of the Y-doped LiVPO$_{4}$F cathode materials are attributed to the addition of Y$^{3+}$ ion by stabilizing the triclinic structure. |
| Starting Page | 552 |
| Ending Page | 556 |
| Page Count | 5 |
| File Format | |
| ISSN | 10002413 |
| Journal | Journal of Wuhan University of Technology-Mater. Sci. Ed. |
| Volume Number | 24 |
| Issue Number | 4 |
| e-ISSN | 19930437 |
| Language | English |
| Publisher | Wuhan University of Technology |
| Publisher Date | 2009-07-22 |
| Publisher Place | Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | lithium-ion batteries cathode material LiVPO$_{4}$F Y-doping carbothermal reduction method cyclic voltammogram (CV) Materials Science |
| Content Type | Text |
| Resource Type | Article |
| Subject | Materials Science |
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