Journal
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION
Volume 32, Issue 6, Pages 1397-1401Publisher
JOURNAL WUHAN UNIV TECHNOLOGY
DOI: 10.1007/s11595-017-1759-7
Keywords
vanadium oxide; ion doping; cathode material; lithium ion battery
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Funding
- Program for New Century Excellent Talents in University of Ministry of Education [NCET-12-0655]
- Guangxi Natural Science Foundation [2014GXNSFFA118004]
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Ribbon-like Cu doped V6O13 was synthesized via a simple solvothermal approach followed by heat treatment in air. As an cathode material for lithium ion battery, the ribbon-like Cu doped V6O13 electrode exhibited good capacity retention with a reversible capacity of over 313 mAh.g(-1) for up to 50 cycles at 0.1 C, as well as a high charge capacity of 306 mAh.g(-1) at a high current rate of 1 C, in comparison to undoped V6O13 electrode (267 mAh.g(-1) at 0.1C and 273 mAh.g(-1) at 1 C). The high rate capability and better cycleability of the doped electrode can be attributed to the influence of the Cu ions on the mophology and the electronic conductivity of V6O13 during the lithiation and delithiation process.
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