Effect of doping of trivalent cations Ga 3+ , Sc 3+ , Y 3+ in Li 1.3 Al 0.3 Ti 1.7 (PO 4 ) 3 (LATP) system on Li + ion conductivity
作者:Dharmesh H. Kothari、D.K. Kanchan
DOI:10.1016/j.physb.2016.08.020
日期:2016.11
Abstract We report the effect of trivalent cations dopants in the Li 1.3 Al 0.3− x R x Ti 1.7 (PO 4 ) 3 (R=Ga 3+ , Sc 3+ , Y 3+ ) NASICON ceramic system in the concentration range x =0.01,0.03,0.05,0.07, on the Li + ion conducting properties using impedance spectroscopy. The samples were prepared by solid state reaction method and characterized by X-Ray Diffraction and density measurements. The electrical
摘要 我们报道了三价阳离子掺杂剂在浓度范围 x = 0.01,0.03,0.05,0.07,使用阻抗谱对Li+离子的导电性能进行了研究。样品通过固态反应法制备,并通过 X 射线衍射和密度测量进行表征。使用阻抗谱在 10 Hz 至 20 MHz 频率范围和 303 K 至 423 K 温度范围内研究电性能。尽管材料的孔隙率随着掺杂而降低,但系统的整体 Li + 离子电导率并未随着掺杂而提高。发现掺杂剂阳离子的离子半径是形成杂质相和低Li + 离子电导率的重要因素。