Imaging the diffusion pathway of Al3+ ion in NASICON-type (Al0.2Zr0.8)20/19Nb(PO4)3 as electrolyte for rechargeable solid-state Al batteries<xref rid="cpb_27_12_128201fn1" ref-type="fn">*</xref><fn id="cpb_27_12_128201fn1"><label>*</label>Project supported by the National Natural Science Foundation of China (Grant Nos. 51672029, 51372271, and 51172275) and the National Key Research and Development Project from the Ministry of Science and Technology, China (Grant No. 2016YFA0202702).</fn>

Imaging the diffusion pathway of Al³⁺ ion in NASICON-type (Al_0.2Zr_0.8)_20/19Nb(PO₄)₃ as electrolyte for rechargeable solid-state Al batteries**

Project supported by the National Natural Science Foundation of China (Grant Nos. 51672029, 51372271, and 51172275) and the National Key Research and Development Project from the Ministry of Science and Technology, China (Grant No. 2016YFA0202702).

Wang Jie¹, Sun Chun-Wen^{1, 6, 9, †}, Gong Yu-Dong¹, Zhang Huai-Ruo^{2, 3, ‡}, Alonso Jose Antonio^{4, §}, Fernández-Díaz María Teresa⁵, Wang Zhong-Lin^{1, 6, 7, 9}, Goodenough John B⁸

(color online) (a) Schematic diagram of the swagelok cell used for electrochemical tests. (b) The preparation process of Al anode. (c) Temperature dependence of the Al³⁺ ion conductivity of (Al_0.2Zr_0.8)_20/19Nb(PO₄)₃. (d) Initial discharge–charge profiles of the solid-state V₂O₅ nanorods/rGO|Al battery at a current density of 2 mA·g^–1 at 120 °C and 150 °C, respectively.