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Method for improving ionic conductivity of sodium-based solid electrolyte
The invention discloses a method for improving the ionic conductivity of a sodium-based solid electrolyte. The method comprises the following steps: 1, carrying out ball milling on sodium carbonate, ammonium dihydrogen phosphate, silicon dioxide, zirconium dioxide and magnesium oxide according to a required stoichiometric ratio; 2, drying the ball-milled mixture until the absolute ethyl alcohol is completely volatilized; 3, grinding the dried powder, and calcining to obtain precursor powder; 4, adding a sintering aid into the calcined precursor powder, and carrying out ball milling; 5, drying the ball-milled mixture until the absolute ethyl alcohol is completely volatilized; 6, placing the dried powder into a tablet press to be pressed; and 7, calcining the pressed wafer, so as to obtain the Na3Zr2Si2PO12 solid electrolyte sheet with improved ionic conductivity. According to the method, the sintering aid Bi2O3 and magnesium ions are co-doped with the Na3Zr2Si2PO12 solid electrolyte, so that the ionic conductivity can be remarkably improved.
本发明公开了一种提高钠基固态电解质离子电导率的方法，所述方法包括如下步骤：一、将碳酸钠、磷酸二氢铵、二氧化硅、二氧化锆和氧化镁按所需要的化学计量比进行球磨；二、球磨后的混合物干燥至无水乙醇挥发完全；三、将干燥后的粉料进行研磨，然后煅烧，获得前驱体粉末；四、将煅烧好的前驱体粉末加入烧结助剂进行球磨；五、球磨后的混合物干燥至无水乙醇挥发完全；六、将烘干后的粉末放入压片机中进行压制；七、将压制好的圆片进行煅烧，得到离子电导率提高的Na3Zr2Si2PO12固态电解质片。该方法将烧结助剂Bi2O3与镁离子共同掺杂Na3Zr2Si2PO12固态电解质，可使离子电导率显著提高。
Method for improving ionic conductivity of sodium-based solid electrolyte
The invention discloses a method for improving the ionic conductivity of a sodium-based solid electrolyte. The method comprises the following steps: 1, carrying out ball milling on sodium carbonate, ammonium dihydrogen phosphate, silicon dioxide, zirconium dioxide and magnesium oxide according to a required stoichiometric ratio; 2, drying the ball-milled mixture until the absolute ethyl alcohol is completely volatilized; 3, grinding the dried powder, and calcining to obtain precursor powder; 4, adding a sintering aid into the calcined precursor powder, and carrying out ball milling; 5, drying the ball-milled mixture until the absolute ethyl alcohol is completely volatilized; 6, placing the dried powder into a tablet press to be pressed; and 7, calcining the pressed wafer, so as to obtain the Na3Zr2Si2PO12 solid electrolyte sheet with improved ionic conductivity. According to the method, the sintering aid Bi2O3 and magnesium ions are co-doped with the Na3Zr2Si2PO12 solid electrolyte, so that the ionic conductivity can be remarkably improved.
本发明公开了一种提高钠基固态电解质离子电导率的方法，所述方法包括如下步骤：一、将碳酸钠、磷酸二氢铵、二氧化硅、二氧化锆和氧化镁按所需要的化学计量比进行球磨；二、球磨后的混合物干燥至无水乙醇挥发完全；三、将干燥后的粉料进行研磨，然后煅烧，获得前驱体粉末；四、将煅烧好的前驱体粉末加入烧结助剂进行球磨；五、球磨后的混合物干燥至无水乙醇挥发完全；六、将烘干后的粉末放入压片机中进行压制；七、将压制好的圆片进行煅烧，得到离子电导率提高的Na3Zr2Si2PO12固态电解质片。该方法将烧结助剂Bi2O3与镁离子共同掺杂Na3Zr2Si2PO12固态电解质，可使离子电导率显著提高。
Method for improving ionic conductivity of sodium-based solid electrolyte
一种提高钠基固态电解质离子电导率的方法
YUE SHIRU (Autor:in) / LI YUNLONG (Autor:in) / CHI DAZHAO (Autor:in) / ZHANG NAIQING (Autor:in) / WEN YANDI (Autor:in) / YANBAOZEXI (Autor:in)
20.08.2021
Patent
Elektronische Ressource
Chinesisch
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