Superior Na-storage performance of Na 3 V 2 (PO 4 ) 3 /C-Ag composites as cathode material for Na-ion battery
Journal of Alloys and Compounds, ISSN: 0925-8388, Vol: 822, Page: 153587
2020
- 27Citations
- 12Captures
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
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Article Description
Na 3 V 2 (PO 4 ) 3 (NVP) is supposed to be a generation cathode material for sodium-ion batteries due to its unique 3D channel structure and remarkable thermal stability. But its poor electronic conductivity partly impedes their electrochemical performance. Herein, a sequence of Na 3 V 2 (PO 4 ) 3 /C-Ag ( NVP/C-Ag ) samples were manufactured via a traditional one-step solid-state process to alleviate this problem. The results reveal that NVP/C-Ag-2 sample possesses minimum charge-transfer resistance and maximum ion diffusion coefficient, and thus has satisfactory electrochemical performance, with a capacity of 95 mA h/g at 10C and almost no capacity decay after 500 cycles. Even at 50C, it can reach a reversible specific capacity of 85 mA h/g. The results demonstrate that an appropriate ratio of silver and carbon acting cooperatively on the particles is a valid method to enhance the electrochemical property.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S0925838819348339; http://dx.doi.org/10.1016/j.jallcom.2019.153587; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85077647775&origin=inward; https://linkinghub.elsevier.com/retrieve/pii/S0925838819348339; https://dx.doi.org/10.1016/j.jallcom.2019.153587
Elsevier BV
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