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| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Zhang, Weihua Li, Lingfang Han, Shaochang Fan, Changling Zeng, Taotao Zhang, Xiang |
| Copyright Year | 2015 |
| Abstract | We synthesized two samples of the cathode material Li3V2(PO4)3/C via a solid state method and a hybrid sol–gel method using polyvinylidene fluoride (PVDF) as the source of carbon. Electrochemical testing and XRD, SEM, TEM and EIS were used to characterize their electrochemical performance and micro-morphology. The pyrolitic carbon of the PVDF polymer behaved as a folded film and formed a conductive net that efficiently enhanced the electrochemical performance of the Li3V2(PO4)3. It is easier to coat this pyrolitic carbon on the Li3V2(PO4)3 particles than other types of organic carbon. Compared with the solid state method, the sol–gel method combined with the surfactant cetyl trimethyl ammonium bromide is better at controlling the particle size of the cathode material at the nano-level. The sample prepared by this method showed outstanding rate and cycle performances, with a capacity >90 mA h g−1 at 15 C and a capacity retention of almost 100% after 50 cycles at rate of 5 C at 3.0–4.3 V (theoretical capacity 130 mA h g−1 at 3.0–4.3 V). |
| Starting Page | 2627 |
| Ending Page | 2632 |
| Page Count | 6 |
| File Format | HTM / HTML PDF |
| ISSN | 11440546 |
| Volume Number | 39 |
| Issue Number | 4 |
| Journal | New Journal of Chemistry |
| DOI | 10.1039/c4nj01667j |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Open |
| Subject Keyword | Ammonium Polyvinylidene fluoride Cathode Polymer Surfactant Carbon EIS Bromide X-ray crystallography Transmission electron microscopy Electrochemistry Cetyl alcohol SEM |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Materials Chemistry Catalysis |
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