کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1459370 | 989592 | 2015 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preparation, electrochemical characterization and in-situ kinetic observation of Na2Li2Ti6O14 as anode material for lithium ion batteries
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Preparation, electrochemical characterization and in-situ kinetic observation of Na2Li2Ti6O14 as anode material for lithium ion batteries Preparation, electrochemical characterization and in-situ kinetic observation of Na2Li2Ti6O14 as anode material for lithium ion batteries](/preview/png/1459370.png)
چکیده انگلیسی
A novel lithium storage material Na2Li2Ti6O14 is synthesized and reported as anode material for lithium-ion batteries in this paper. The synthesis of Na2Li2Ti6O14 is performed by using a simple solid state reaction route. No impurity can be detected in the final product obtained at a temperature of 900 °C. As-formed Na2Li2Ti6O14 is composed of irregular solid particles with the size ranging from 200 to 400 nm. Using as anode material, Na2Li2Ti6O14 exhibits flat lithiation/delithiation plateaus with average working potential of 1.28 V. Electrochemical testing results show that Na2Li2Ti6O14 can deliver a reversible capacity of 74 mA h gâ1 with capacity retention of 98.01% upon 50 cycles. Moreover, it also displays excellent rate performance with a charge capacity of 69.5 mA h gâ1 at 200 mA gâ1, 64.7 mA h gâ1 at 300 mA gâ1, 60.7 mA h gâ1 at 400 mA gâ1, and 57.9 mA h gâ1 at 500 mA gâ1. The outstanding kinetic behavior is attributed to the high lithium ion diffusion coefficient in Na2Li2Ti6O14, which shows the value ranging from 10â14 to 10â12 cm2 sâ1. Owing to the rapid diffusion kinetics, symmetrical structural change at high rates can be observed by in-situ X-ray diffraction during charge-discharge process.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 41, Issue 10, Part B, December 2015, Pages 14508-14516
Journal: Ceramics International - Volume 41, Issue 10, Part B, December 2015, Pages 14508-14516
نویسندگان
Peng Li, Kaiqiang Wu, Pengfei Wang, Xiaoting Lin, Haoxiang Yu, Miao Shui, Xi Zheng, Nengbing Long, Jie Shu,