Effects of Y3+-Doping on the Electrochemical Properties of LiV3O8 Cathode Material Prepared by a Solid-State Method
2011 ◽
Vol 391-392
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pp. 1363-1367
Keyword(s):
X Ray
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A series of yttrium-doped lithium trivanadates LiV3-yYyO8 (y=0, 0.01, 0.03, 0.05, 0.1 and 0.2) were synthesized by a solid-state reaction. X-ray diffraction (XRD) tests show that a proper amount of yttrium doping in LiV3O8 can modify its structure. Charge-discharge tests show that doped samples with a proper amount of yttrium display good cycling stability compared with undoped sample. The cyclic voltammetry (CV) tests indicate that the proper amount of yttrium doping in LiV3O8 can stabilize its original structure. Yttrium doping is a convenient and effective method for improving the electrochemical performances of LiV3O8.
2012 ◽
Vol 554-556
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pp. 436-439
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2012 ◽
Vol 602-604
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pp. 1044-1049
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