Mixed vanadium-/manganese-based NASICON cathodes are attractive for practical sodium-ion battery application due to their low cost and toxicity. Although the previous reports demonstrate remarkable performances of bulk Na3+yV2?yMny(PO4)3 cathodes, full utilization is limited by lower electronic conductivities longer Na-ion diffusion lengths. To overcome this issue, herein, structural electroche...

The Cover Feature shows the kosnarite structure from an unusual perspective and with reminiscence of its volcanic origin. analogous man-made so-called NaSICON materials have been optimized advanced processing methods. More information can be found in Research Article by A. Loutati, F. Tietz co-workers.

We report the temperature dependent dielectric properties and impedance spectroscopy investigation of Na3Zr2Si2PO12 in frequency range 20 Hz–2 MHz. The Rietveld refinement x-ray diffraction pattern confirms monoclinic phase with C2/c space group. d.c. resistivity behavior shows its strong insulating nature at low temperatures, follows Arrhenius law thermal conduction an activation energy 0.68 e...

The key component in lithium solid-state batteries (SSBs) is the solid electrolyte composed of superionic conductors (SICs). Lithium oxide SICs offer improved electrochemical and chemical stability compared with sulfides, their recent advancements have largely been achieved using materials garnet- NASICON (sodium conductor)- structured families. In this work, ion-conduction mechanisms garnet as...

The development of high-energy and long-lifespan NASICON-type cathode materials for sodium-ion batteries has always been a research hotspot but daunting challenge. Although Na4MnCr(PO4)3 emerged as one the most promising high-energy-density owing to its three-electron reactions, it still suffers from serious structural distortion upon repetitive charge/discharge processes caused by Jahn-Teller ...

• Novel Na-hybrid electrolytes based on porous NASICON and commercial ionic liquids, has been prepared. These new hybrid present an enhanced conductivity (around 1 mS cm-1 at 30°C) of one order magnitude respect to pore-free sintered samples Thinner films this would permit the manufacture functional macroporous inorganic separators acting as a Na + reservoirs. Lithium-ion batteries are currentl...