Sb2O3添加Li1.3Al0.3Ti1.7(PO4)3陶瓷在锂离子电池中的高离子导电性

IF 1.2 4区综合性期刊 Q3 MULTIDISCIPLINARY SCIENCES

Proceedings of the National Academy of Sciences, India Section A: Physical Sciences Pub Date : 2025-05-19 DOI:10.1007/s40010-025-00924-z

Swati G. Bansod, A. V. Deshpande

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引用次数: 0

摘要

采用溶胶-凝胶合成技术制备了一种nasicon型固体电解质Li1.3Al0.3Ti1.7(PO4)3（LATP）陶瓷。为了提高LATP陶瓷的离子电导率，添加了Sb2O3。研究了Sb2O3对LATP陶瓷的结构、微观结构和离子电导率的影响。研究了红外光谱以确定陶瓷样品中的结构基团。在室温下，添加1wt% Sb2O3的LATP陶瓷的体积电导率最高，为3.95 × 10-3 Scm−1，相对密度为84.01%，活化能低至0.17 eV。添加Sb2O3的LATP陶瓷是一种很有前途的固态锂离子电池电解质材料。

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High Ionic Conductivity of Sb2O3 Added Li1.3Al0.3Ti1.7(PO4)3 Ceramic for Lithium-Ion Battery Applications

A NASICON-type solid electrolyte Li_1.3Al_0.3Ti_1.7(PO₄)₃(LATP) ceramic was prepared using the sol–gel synthesis technique. To improve the ionic conductivity of LATP ceramic, Sb₂O₃ was added. The effect of Sb₂O₃ on the structural, microstructural, and ionic conductivity of the LATP ceramic was investigated. IR spectra were studied to determine the structural groups present in the ceramic samples. The highest bulk conductivity of 3.95 × 10^–3 Scm⁻¹ at room temperature, a relative density of 84.01%, and a low activation energy of 0.17 eV is obtained for the 1wt% Sb₂O₃ added LATP ceramic. The Sb₂O₃ added LATP ceramics can be a promising electrolyte material for solid-state lithium-ion battery applications.