کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5148868 | 1497871 | 2017 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Improved electrochemical performances of LiSn2(PO4)3 anode material for lithium-ion battery prepared by solid-state method
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
The rhombohedral LiSn2(PO4)3 was prepared by solid-state method for the anode material of lithium-ion battery. The effect of pH value of hydrothermal reaction system on the morphology of SnO2 as the precursor of LiSn2(PO4)3 and the influence of heat-treatment procedure and conditions, such as the sintering temperature and time, on the property of LiSn2(PO4)3 were investigated. The purity, morphology, structure and size distribution of prepared LiSn2(PO4)3 were characterized respectively by X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM) and scanning electron microscopy (SEM) methods. The results demonstrate that the as-prepared LiSn2(PO4)3 particles exhibit rhombohedral single-crystal structure with an average particle size of 200 nm. The electrochemical measurement results reveal that the as-prepared LiSn2(PO4)3/C electrode exhibits the improved cycling stability and reversibility with a reversible discharge capacity of 448.6 mA h gâ1 at 100 mA gâ1 and better rate capability of 332.6 mA h gâ1 at 500 mA gâ1. The charge-discharge mechanism of LiSn2(PO4)3/C electrode was also investigated. According to the test results of cyclic voltammetry, the electrode process includes not only the intercalation and deintercalation of lithium ions in the LiSn2(PO4)3 particles, but also the surface pseudo-capacitive effect.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 361, 1 September 2017, Pages 96-104
Journal: Journal of Power Sources - Volume 361, 1 September 2017, Pages 96-104
نویسندگان
Naren Naren, Jianhua Tian, Dongdong Wang, Zhongqiang Shan,