Self-combustion synthesis of Na3V2(PO4)3 nanoparticles coated with carbon shell as cathode materials for sodium-ion batteries

Wang, Hui; Jiang, Danlu; Zhang, Yan; Li, Guopeng; Lan, Xinzheng; Zhong, Hao; Zhang, Zhongping; Jiang, Yang

doi:10.1016/j.electacta.2014.12.160

Cited by 85 publications

(44 citation statements)

References 36 publications

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“…5b and 5c, the MoSe 2 nanospheres electrode displays the initial discharge/charge capacities of 520 mA h g −1 and 430 mAh g −1 (higher than the theoretical capacity of 422.3 mA h g −1 as indicated later) at a current of 0.1 C (42.2 mA g −1 ), and the corresponding relatively low initial coulombic efficiency was 82.7%, which may be attributed to the reactions of SEI, incomplete conversion and sidereactions of electrolyte reduction in the initial cycle. 47,48 It was noted that the plateaus in the voltage profiles are consistent with the distinct peaks in the CV curves. After 200 cycles, the MoSe 2 nanospheres electrode still delivers reversible discharge/charge capacities of 345 mA h g −1 and 344 mAh g −1 , and the coulombic efficiency was as high as 99.7% as shown in Fig.…”

Section: Resultsmentioning

confidence: 64%

High Quality MoSe₂Nanospheres with Superior Electrochemical Properties for Sodium Batteries

Wang

et al. 2016

J. Electrochem. Soc.

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Highly ordered MoSe 2 nanospheres are successfully fabricated via a facile colloidal route. The unique as-obtained MoSe 2 nanospheres render the high-rate transporation of sodium ion due to small size and high specific surface area. As the anode, MoSe 2 nanospheres yield the initial discharge/charge capacities of 520/430 mAh g −1 for potentials ranging from 0.1 to 3 V at a current rate of 0.1 C with an 80% capacity retention over 200 cycles. In addition, MoSe 2 nanospheres also demonstrate excellent electrochemical performance at high current densities. Using first-principles simulation, the activation barriers for sodium ion transportation on the surface as well as interlayer of the MoSe 2 are 0.344/1.31 eV respectively, suggesting that high specific surface area MoSe 2 nanospheres can serve as an attractive anode material for Na ion batteries.

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Section: Resultsmentioning

confidence: 64%

High Quality MoSe₂Nanospheres with Superior Electrochemical Properties for Sodium Batteries

Wang

et al. 2016

J. Electrochem. Soc.

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“…Fitting the linear relationship between the peak currents and the square root of the scanning rate for A and C peaks (Fig. 3c) yields comparable Na + ion apparent diffusion coefficient D Na+ values (2.12 × 10 −10 and 2.19 × 10 −10 cm 2 s −1 for A and C, respectively) to those for the NASICON-structured Na 3 V 2 (PO 4 ) 3 /C nanocomposites927 and several layered cathode materials2829 used in SIBs, according to the Randles−Sevick equation9:…”

Section: Resultsmentioning

confidence: 78%

Sodium vanadium titanium phosphate electrode for symmetric sodium-ion batteries with high power and long lifespan

et al. 2017

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Sodium-ion batteries operating at ambient temperature hold great promise for use in grid energy storage owing to their significant cost advantages. However, challenges remain in the development of suitable electrode materials to enable long lifespan and high rate capability. Here we report a sodium super-ionic conductor structured electrode, sodium vanadium titanium phosphate, which delivers a high specific capacity of 147 mA h g−1 at a rate of 0.1 C and excellent capacity retentions at high rates. A symmetric sodium-ion full cell demonstrates a superior rate capability with a specific capacity of about 49 mA h g−1 at 20 C rate and ultralong lifetime over 10,000 cycles. Furthermore, in situ synchrotron diffraction and X-ray absorption spectroscopy measurement are carried out to unravel the underlying sodium storage mechanism and charge compensation behaviour. Our results suggest the potential application of symmetric batteries for electrochemical energy storage given the superior rate capability and long cycle life.

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“…Furthermore, sodium resource is abundant on earth and the price is cheap. Thus, SIBs are considered as the most promising competitive alternative to LIBs (Jian et al, 2014; Wang H. et al, 2015; Chao et al, 2016; Xu et al, 2016). Developing SIBs with excellent electrochemical performance becomes necessary and challenging.…”

Section: Introductionmentioning

confidence: 99%

Reduced Graphene Oxide Decorated Na3V2(PO4)3 Microspheres as Cathode Material With Advanced Sodium Storage Performance

et al. 2018

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Reduced graphene oxide (rGO) sheet decorated Na3V2(PO4)3 (NVP) microspheres were successfully synthesized by spray-drying method. The NVP microspheres were embedded by rGO sheets, and the surface of the particles were coated by rGO sheets and amorphous carbon. Thus, the carbon conductive network consisted of rGO sheets and amorphous carbon generated in the cathode material. NVP microspheres decorated with different content of rGO (about 0, 4, 8, and 12 wt%) were investigated in this study. The electrochemical performance of NVP exhibited a significant enhancement after rGO introduction. The electrode containing about 8 wt% rGO (NVP/G8) showed the best rate and cycle performance. NVP/G8 electrode exhibited the discharge capacity of 64.0 mAh g−1 at 70°C, and achieved high capacity retention of 95.5% after cycling at 10°C for 100 cycles. The polarization of the electrode was inhibited by the introduction of rGO sheets. Meanwhile, compared with the pristine NVP electrode, NVP/G8 electrode exhibited small resistance and high diffusion coefficient of sodium ions.

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Self-combustion synthesis of Na3V2(PO4)3 nanoparticles coated with carbon shell as cathode materials for sodium-ion batteries

Cited by 85 publications

References 36 publications

High Quality MoSe₂Nanospheres with Superior Electrochemical Properties for Sodium Batteries

High Quality MoSe₂Nanospheres with Superior Electrochemical Properties for Sodium Batteries

Sodium vanadium titanium phosphate electrode for symmetric sodium-ion batteries with high power and long lifespan

Reduced Graphene Oxide Decorated Na3V2(PO4)3 Microspheres as Cathode Material With Advanced Sodium Storage Performance

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Self-combustion synthesis of Na3V2(PO4)3 nanoparticles coated with carbon shell as cathode materials for sodium-ion batteries

Cited by 85 publications

References 36 publications

High Quality MoSe2Nanospheres with Superior Electrochemical Properties for Sodium Batteries

High Quality MoSe2Nanospheres with Superior Electrochemical Properties for Sodium Batteries

Sodium vanadium titanium phosphate electrode for symmetric sodium-ion batteries with high power and long lifespan

Reduced Graphene Oxide Decorated Na3V2(PO4)3 Microspheres as Cathode Material With Advanced Sodium Storage Performance

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High Quality MoSe₂Nanospheres with Superior Electrochemical Properties for Sodium Batteries

High Quality MoSe₂Nanospheres with Superior Electrochemical Properties for Sodium Batteries