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Study on LiFe1 − xSmxPO4/C used as cathode materials for lithium-ion batteries with low Sm component

Wang, Wen, Qiao, Yuqing, He, Li, Dumée, Ludovic, Kong, Lingxue, Zhao, Minshou and Gao, Weimin 2015, Study on LiFe1 − xSmxPO4/C used as cathode materials for lithium-ion batteries with low Sm component, Ionics, vol. 21, no. 8, pp. 2119-2125, doi: 10.1007/s11581-015-1397-z.

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Title Study on LiFe1 − xSmxPO4/C used as cathode materials for lithium-ion batteries with low Sm component
Author(s) Wang, Wen
Qiao, Yuqing
He, Li
Dumée, LudovicORCID iD for Dumée, Ludovic orcid.org/0000-0002-0264-4024
Kong, LingxueORCID iD for Kong, Lingxue orcid.org/0000-0001-6219-3897
Zhao, Minshou
Gao, Weimin
Journal name Ionics
Volume number 21
Issue number 8
Start page 2119
End page 2125
Total pages 7
Publisher Springer
Place of publication Berlin, Germany
Publication date 2015-02
ISSN 0947-7047
1862-0760
Keyword(s) Cathodes
Doping
Electrochemical characterizations
Li-ion batteries
Summary LiFe1 − xSmxPO4/C cathode materials were synthesized though a facile hydrothermal method. Compared with high-temperature solid-phase sintering, the method can allow for the fabrication of low Sm content (2 %), a scarce and expensive rare earth element, while the presence of an optimized carbon coating with large amount of sp2-type carbon sharply increases the material’s electrochemical performance. The high-rate dischargeability at 5 C, as well as the exchange current density, can be increased by 21 and 86 %, respectively, which were attributed to the fine size and the large cell parameter a/c as much. It should be pointed out that the a/c value will be increased for the LiFePO4 Sm-doped papered by both of the two methods, while the mechanism is different: The value c is increased for the front and the value a is decreased for the latter, respectively.
Language eng
DOI 10.1007/s11581-015-1397-z
Field of Research 030604 Electrochemistry
091205 Functional Materials
Socio Economic Objective 850701 Commercial Energy Conservation and Efficiency
HERDC Research category C1 Refereed article in a scholarly journal
Grant ID International colaboration
Copyright notice ©2015, Springer Verlag
Persistent URL http://hdl.handle.net/10536/DRO/DU:30070622

Document type: Journal Article
Collection: Institute for Frontier Materials
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