TY - GEN
T1 - Study on carbon-coating Li3V2(PO4)3 cathode materials prepared with different carbon sources
AU - Yuejiao, Li
AU - Liang, Hong
AU - Jingqiu, Sun
AU - Feng, Wu
PY - 2012
Y1 - 2012
N2 - Lithium-ion battery cathode materials, Li3V2(PO4)3/C, were prepared via rheological phase method. Li2CO3, NH4H2PO4, V2O5 were employed as raw materials, and citric acid or polyethylene glycol (PEG) was used as the chelating agent (carbon source). The structure, morphology characters and the electrochemical performances of the samples were tested. The results show that modification by carbon-coating is favorable for the growth of particles. The primary particle size obviously decreases with PEG added, while the agglomeration of primary particles could be inhibited using the citric acid as carbon source, which makes particle size more uniform. Moreover, the electrochemical test results show that both the two kinds of carbon sources can effectively improve the specific capacity and the cycling performance compared with the uncoated sample.
AB - Lithium-ion battery cathode materials, Li3V2(PO4)3/C, were prepared via rheological phase method. Li2CO3, NH4H2PO4, V2O5 were employed as raw materials, and citric acid or polyethylene glycol (PEG) was used as the chelating agent (carbon source). The structure, morphology characters and the electrochemical performances of the samples were tested. The results show that modification by carbon-coating is favorable for the growth of particles. The primary particle size obviously decreases with PEG added, while the agglomeration of primary particles could be inhibited using the citric acid as carbon source, which makes particle size more uniform. Moreover, the electrochemical test results show that both the two kinds of carbon sources can effectively improve the specific capacity and the cycling performance compared with the uncoated sample.
KW - Cathode material
KW - Lithium vanadium phosphate
KW - Power li-ion batteries
KW - Rheological
UR - https://www.scopus.com/pages/publications/84869847347
U2 - 10.4028/www.scientific.net/AMR.581-582.565
DO - 10.4028/www.scientific.net/AMR.581-582.565
M3 - Conference contribution
AN - SCOPUS:84869847347
SN - 9783037855126
T3 - Advanced Materials Research
SP - 565
EP - 569
BT - Frontiers of Materials, Chemical and Metallurgical Technologies
T2 - 2012 International Conference on Chemical Engineering, Metallurgical Engineering and Metallic Materials, CMMM 2012
Y2 - 12 October 2012 through 13 October 2012
ER -