Improvement in fast Na-ion conduction in Na3+xCrxTi2−x(PO4)3 glass–ceramic electrolyte material for Na-ion batteries

In this report, efforts were made to investigate and characterize a variety of compositions in a glass system of general formula Na3+xCrxTi2−x(PO4)3 (x = 0, 0.25, 0.5 and 0.75 mol%, designated as NCTPx) to optimize their properties for use in Na-ion batteries. Several crystalline phases such as Na3Ti2(PO4)3 (COD-4106515) (NASICON), Cr2O3 (ICSD-25781) and Cr(PO3)3 (ICSD-39410) are precipitated during the process of crystallization. The...