کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5462875 | 1517183 | 2017 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Improved high-rate performance of Na3V2(PO4)3 with an atomic layer deposition-generated Al2O3 layer as a cathode material for sodium-ion batteries
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Improved high-rate performance of Na3V2(PO4)3 with an atomic layer deposition-generated Al2O3 layer as a cathode material for sodium-ion batteries Improved high-rate performance of Na3V2(PO4)3 with an atomic layer deposition-generated Al2O3 layer as a cathode material for sodium-ion batteries](/preview/png/5462875.png)
چکیده انگلیسی
Because of its sodium superionic conductor structure, Na3V2(PO4)3 has been recognized as a promising candidate cathode material for room-temperature sodium-ion batteries. However, Na3V2(PO4)3 suffers from a severe capacity loss, especially at a high charge-discharge rate. To overcome this limitation, in this work Na3V2(PO4)3 was coated with Al2O3 films (NVP@Al) using atomic layer deposition (ALD). The electrochemical performances of the NVP@Al nanocomposites as cathodes for sodium-ion batteries were investigated NVP@Al nanocomposite exhibited a relatively flat voltage plateau at 3.4Â V in a non-aqueous sodium cell. When tested as a cathode in a voltage range of 2.5Â V-4.0Â V, NVP@ Al exhibited initial charge and discharge capacities of 132Â mAh/g and 107Â mAh/g, respectively. The ALD-coated Na3V2(PO4)3 electrodes exhibited significantly increased capacities, because of transformations of the as-deposited Al2O3 into a more Na+-conductive material. These preliminary results indicate that NVP@Al is a prospective cathode material for room-temperature sodium-ion batteries.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 205, 15 October 2017, Pages 75-78
Journal: Materials Letters - Volume 205, 15 October 2017, Pages 75-78
نویسندگان
Lei Dong, Liu RuiXian, Jianmin Feng, CongLai Long, Guizhi Wang, Huari Kou, MengLi Zhao, L. Dong, Xifei Li, Dejun Li,