Layered hybrid phase Li₂NaV₂(PO₄)₃/carbon dot nanocomposite cathodes for Li⁺/Na⁺ mixed-ion batteries

Abstract

Hybrid phase Li2NaV2(PO4)3 (H-LNVP) is one of the most promising cathode materials for Li+/Na+ mixed-ion batteries.

Construction and Operating Mechanism of High‐Rate Mo‐Doped Na3V2(PO4)3@C Nanowires toward Practicable Wide‐Temperature‐Tolerance Na‐Ion and Hybrid Li/Na‐Ion Batteries

“…More surprisingly, just after rest, all the detected diffraction peaks for the fresh assembled cell change somewhat, and are well indexed as the rhombohedral Li 2 NaV 2 (PO 4 ) 3 (JCPDS no. 54–0763) rather than the NVP, [ 51 ] as examined from Figure 6b, although the peak deviation toward low 2θ angles can also be distinctly discerned due to the Li/Na molar ratio is less than 2. This phenomenon suggests that the Li + /Na + exchange reaction between the MNVP and LiPF 6 ‐based electrolyte, which is a thermodynamically spontaneous process, [ 52 ] takes place.…”

Future Perspectives and Review on Organic Carbon Dots in Electronic Applications

“…Wang et al . synthesized a H-LNVP/CDs nanocomposite by sol–gel and carbon thermal reduction methods . High-energy biomolecule adenosine triphosphate (ATP) was used as a sodium source, anionic surfactant, and biocarbon source.…”

Recent advances in crystalline carbon dots for superior application potential

“…Cdots have excellent charge transfer rates along with good electron transport efficiency due to quantum tunnelling, which results in improved efficiency. 204 A new type of Cdot coated VO 2 nanowire grown over 3D carbon cloth was prepared via a surface engineering process and was introduced as a cathode material to increase the performance of LIBs and SIBs. In this work, Cdots were synthesized from sucrose using the hydrothermal process and they played a crucial role in free electron diffusion.…”

“…Moreover, powder XRD of Cdot/Mn 3 O 4 confirmed narrower diffraction peaks due to lowering in lattice parameter values following Cdot incorporation into Mn 3 O 4 203. Use of hybrid phase nanocomposites such as Li 2 NaV 2 (PO 4 ) 3 /Cdot as the cathode material in low-cost and efficient LIBs is noteworthy 204. Wang et al…”