Microstructural and mechanical characterization of Na1+xHf2Si2.3P0.7O10.85+0.5x and Na1+xZr2P3-xSixO12 NASICON-type solid electrolytes

Abstract NASICON-type solid electrolytes are promising materials for novel solid-state-batteries aiming toward high energy densities. Na 1+ x Hf 2 Si 2.3 P 0.7 O 10.85+0.5 with varying sodium content as well Sc- or Mg-doped and undoped Zr 3- 12 were synthesized by solution-assisted solid-state reaction. Microstructural mechanical characteristics conductivities investigated. The electrochemical microstructural properties of all studied appear to be highly affected the glassy phase secondary formation bloating. specimens depend mainly on characteristics. Our findings indicate improved behavior is achieved when bloating inhibited. However, possible influences material need further