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The Electrochemical Performance of Li 3 V 2 ( PO 4 ) 3 / Graphene Nano-powder Composites as Cathode Material for Li-ion Batteries
| Content Provider | Semantic Scholar |
|---|---|
| Author | Choi, Moonseok Kim, Hyun-Soo Lee, Young Moo Jin, Bong-Soo |
| Copyright Year | 2015 |
| Abstract | The Li3V2(PO4)3/graphene nano-particles composite was successfully synthesized by a facile sol-gel method. The addition of a graphene in Li3V2(PO4)3(LVP) showed the high crystallinity and influenced the morphology of the Li3V2(PO4)3 particles observed in X-ray diffraction (XRD) and scanning electron microscopy (SEM). The LVP/graphene samples were well connected, resulting in fast charge transfer. The effect of the addition graphene nano-particles on electrochemical performance of the materials was investigated. Compared with the pristine LVP, the LVP/graphene composite delivered a higher discharge capacity of 122 mAh g− at 0.1 C-rate, better rate capability and cyclability in the potential range of 3.04.3 V. The electrochemical impedance spectra (EIS) measurement showed the improved electronic conductivity for the LVP/graphene composite, which can ensure the high specific capacity and rate capability. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://ocean.kisti.re.kr/downfile/volume/kecs/E1JTC5/2014/v5n4/E1JTC5_2014_v5n4_109.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
