2023年12月25日 · Nanostructured Na 3 V 2 (PO 4) 3 @C exhibited capacity i.e. of 99 mAhg −1 at 1C. NVP demonstrated ultralong cycle life of 1400 cycles at 10C (73 mAhg −1) with 94 % capacity retention. Full cell comprising optimized NVP@C electrodes demonstrated cyclability of 500 cycles at 2C rate.

在高达28.5 gpa的高压下，通过拉曼测量研究了n-乙烯基-2-吡咯烷酮（nvp）的振动特性和化学稳定性。 当压力超过0.4 GPa时，NVP结晶，体积急剧下降，样品周围的压力降至0.1 GPa。

2025年3月7日 · The Raman spectrum of the NVP/C is shown in Fig. 2d. Two Raman peaks at 1335 and 1586.5 cm −1 , are attributed to disordered carbon electronic configuration (D band) and sp 2 carbon electronic ...

2018年3月1日 · Here, we report a facile strategy to achieve high mass loading of Na 3 V 2 (PO 4) 3 @carbon (NVP@C) supported on carbon cloth (NVP@C-CC) by a two-step coating followed by an annealing treatment and the resultant NVP@C-CC membrane can be used as a binder-free cathode for sodium ion batteries (SIBs).

2023年11月1日 · Na 3 V 2 (PO 4) 3 (NVP) is a preferred cathode material for Na-ion batteries due to its good thermal stability and long cycle life, but its low electrical conductivity limits its use. The carbon coating method is widely available in the literature but can solve the problem to a …

2024年11月6日 · In this report, we present the synthesis of NVP/C (Na 3 V 2 (PO 4) 3 /Carbon composite) via the sol–gel method and investigate its electrochemical behavior in both the anodic and cathodic ranges, as well as its assessment in a symmetric cell followed by a detailed postcycling analysis.

2023年5月12日 · Na 3 V 2 (PO 4) 3 (NVP) as a sodium super-ionic conductor (NASICON)-type polyanion material is impressive to possess excellent thermal stability below 450°C, which helps the safe battery operation. Furthermore, the unique 3D open framework provides the fast migration tunnels for Na + insertion/extraction during high rate cycling [10].

Carbon coated Na3V2 (PO4)3 (NVP/C) is successfully synthesized by sol-gel method and examined as the anode material for sodium-ion batteries (SIB) by means of...

By reasonably modulating the ratio of water and ethanol in the solution, the as-synthesized NVP/C sample exhibited a three-dimensional interconnected structure with hierarchical micro/meso/macro...

2024年5月28日 · XRD, Raman, XPS, and electron microscopy data confirmed the high purity of the synthesized cathode. The optimized Sn(0.07)-NVP/C exhibited excellent electrochemical performance in terms of high rate capability and long cycling performance, a high appreciable capacity of 98 mAh g –1 with capacity retention of 85% after 500 cycles.