Autor: |
YUAN Qi, ZOU Zheng-guang, WAN Zhen-dong, HAN Shi-chang |
Jazyk: |
čínština |
Rok vydání: |
2018 |
Předmět: |
|
Zdroj: |
Cailiao gongcheng, Vol 46, Iss 1, Pp 106-113 (2018) |
Druh dokumentu: |
article |
ISSN: |
1001-4381 |
DOI: |
10.11868/j.issn.1001-4381.2016.001099 |
Popis: |
Fe-doped V6O13 was synthesized via a facile hydrothermal method after preparing precursor in order to improve the discharge capacity and cycle performance of V6O13 cathode material at high-lithium state. XRD, SEM and XPS were employed to characterize the phase, morphology and valence of the Fe-doped V6O13. Meanwhile, the electrochemical performance was analyzed and researched. Different morphologies and electrochemical performances of Fe-doped V6O13 were obtained via doping different contents of Fe3+ ion. The sample 0.02 presented the largest thickness of nanosheets (the thickness of 600-900nm) and clearance between layers. The Fe-doped V6O13 has a better electrochemical performance than that of pure V6O13. The sample 0.02 exhibits the best electrochemical performance, the initial discharge specific capacity is 433mAh·g-1 and the capacity retention is 47.1% after 100 cycles. |
Databáze: |
Directory of Open Access Journals |
Externí odkaz: |
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