کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7725220 | 1497836 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Na3NH2B12H12 as high performance solid electrolyte for all-solid-state Na-ion batteries
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Solid electrolyte with stable and fast Na+ ionic conductivity is of central importance in the development of all-solid-state sodium batteries. Here we present a novel Na+ conductor based on complex hydrides with composition of Na3NH2B12H12. It exhibits remarkable thermal stability up to 593â¯K and excellent electrochemical stable window up to 10â¯V (vs. Na+/Na). It demonstrates a high Na+ conductivity of 1.0â¯Ãâ¯10â4â¯Sâ¯cm-1â¯at a temperature of 372â¯K, which is much higher than those of its precursors NaNH2 and Na2B12H12. All-solid-state Na-ion batteries were constructed by employing the obtained Na3NH2B12H12 as electrolyte, TiS2 as cathode and sodium foil as anode, which can reversibly discharge/charge for over 200 cycles with more than 50% capacity retention at temperature of 353â¯K and a rate of 0.1â¯C. This work opens the gate to develop advanced solid electrolytes via combination of metal amides with closo borates.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 396, 31 August 2018, Pages 574-579
Journal: Journal of Power Sources - Volume 396, 31 August 2018, Pages 574-579
نویسندگان
Liqing He, Huaijun Lin, Hai-Feng Li, Yaroslav Filinchuk, Junjun Zhang, Ying Liu, Mingyang Yang, Yan Hou, Yonghong Deng, Hai-Wen Li, Huaiyu Shao, Liping Wang, Zhouguang Lu,