Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1295538 | Solid State Ionics | 2006 | 5 Pages |
Abstract
Mechanical milling (MM) has been used to prepare the nanosized Li1.4Al0.4Ti1.6(PO4)3 (denoted LATP) glassy powders, which was converted into glass-ceramics through thermal treating at 700-1000 °C. The XRD, TEM, FESEM and ac impedance techniques were used to characterize the products. The results showed that completely amorphous products were prepared by MM for 40 h, and single-phase LiTi2(PO4)3-type structured glass-ceramics were obtained by further heat treatment. The lithium ion conductivity of the glass-ceramics increased with the growth of the crystalline phase and decrease of the grain size. The highest bulk conductivity (Ïb) of 1.09 Ã 10â 3 S cmâ 1 with an energy of activation as low as 0.28 eV was obtained at room temperature for the specimen treated at 900 °C for 6 h. The high conductivity, easy fabrication and low cost make the LATP glass-ceramics promising to be used as inorganic solid electrolyte for all-solid-state Li-ion rechargeable batteries.
Related Topics
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Authors
Xiaoxiong Xu, Zhaoyin Wen, Xuelin Yang, Jingchao Zhang, Zhonghua Gu,