کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7736645 | 1497971 | 2014 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preparation and electrochemical properties of Zr-site substituted Li7La3(Zr2âxMx)O12 (MÂ =Â Ta, Nb) solid electrolytes
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Li7La3Zr2O12 (LLZ) solid electrolytes with Zr site partially substituted by Ta and Nb elements were prepared via the conventional solid-state reaction. All the compositions could lead to the cubic garnet-type structure after sintering at 1150 °C. The use of γ-Al2O3 as a sintering aid in the preparation of doped LLZ was studied. It was shown that Al could help to improve the micro-structure for Nb doping, but not necessary for Ta doping. The Ta and Nb doping enhanced the ionic conductivity at 25 °C to 4.09 Ã 10â4 S cmâ1 and 4.50 Ã 10â4 S cmâ1, respectively. A conductivity as high as 1.23 Ã 10â3 S cmâ1 was obtained when measured at 50 °C in air for the Nb-doped LLZ. All-solid-state batteries with LLZTa and LLZNb solid electrolytes were assembled and tested. The cyclic voltammetry (CV) measurement indicated the successful working of the batteries.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 261, 1 September 2014, Pages 206-211
Journal: Journal of Power Sources - Volume 261, 1 September 2014, Pages 206-211
نویسندگان
Mian Huang, Mao Shoji, Yang Shen, Ce-Wen Nan, Hirokazu Munakata, Kiyoshi Kanamura,