Flower-like Li0.36V6O13 with superior cycling stability as a cathode material for lithium-ion batteries
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3D flower-like Li0.36V6O13 has been fabricated via a facile solvothermal method using C2H5OH, V2O5, and LiNO3 as raw materials. The microstructure of the sample was characterized by XRD, FESEM, TEM, and XPS. The lithium storage performance of the sample was investigated by CV, EIS, and charge/discharge test. The results demonstrated that the Li0.36V6O13 sample exhibited greatly improved electrochemical performance as compared with the pristine V6O13. For example, when cycled at 0.1 C for 50 cycles, the capacity retention of the Li0.36V6O13 is 97% much higher than that (57%) of the pristine V6O13. The improvement of the cycle performance of Li0.36V6O13 is attributed to its superior structural reversibility, fewer number of phase transitions during the discharge/charge process, improved electrical conductivity, and enhanced Li+ diffusivity.
KeywordsLithium-ion batteries Cathode material V6O13 Pre-lithiated Electrochemical performance
The authors received financial support from the National Nature Science Foundation of China (project no. 51562006).
- 2.Hu LH, Kumar P (2015) Sulphur-reduced self-assembly of flower-like vanadium pentoxide as superior cathode material for Li-ion battery. J Alloys Compd 655:79–85Google Scholar
- 26.Ding Z, Zhao L, Suo L, Jiao Y, Meng S, Hu YS, Wang Z, Chen L (2011) Towards understanding the effects of carbon and nitrogen-doped carbon coating on the electrochemical performance of Li4Ti5O12 in lithium ion batteries: a combined experimental and theoretical study. Chem Phys 13:15127–15133Google Scholar