کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7733367 | 1497950 | 2015 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Mg-doping for improved long-term cyclability of layered Na-ion cathode materials - The example of P2-type NaxMg0.11Mn0.89O2
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Mg-doping for improved long-term cyclability of layered Na-ion cathode materials - The example of P2-type NaxMg0.11Mn0.89O2 Mg-doping for improved long-term cyclability of layered Na-ion cathode materials - The example of P2-type NaxMg0.11Mn0.89O2](/preview/png/7733367.png)
چکیده انگلیسی
Sodium-ion batteries (SIBs) are establishing themselves as a low-cost alternative to the widespread lithium-ion technology, a trend that is exemplified by the use of aluminium as anode current collector. In order to be in line with this philosophy, environmentally friendly, abundant and cheap materials need to be used in order to provide a complementary rather than competing battery technology other than lithium-ion. With the same scope in mind, herein we present the structural and electrochemical characterization of P2-type NaxMg0.11Mn0.89O2 material to demonstrate the effectiveness of Mg-doping for the development of future layered cathode materials. Of particular interest is the effect on the long-term cyclability (200 cycles), which has not been reported, yet. As shown in the manuscript, a Mg content as low as 11% in the MO2 layer leads to a smoothing of the potential profile, very high coulombic efficiencies exceeding 99.5% at 12Â mAÂ gâ1 and a stable long-term cycling behaviour.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 282, 15 May 2015, Pages 581-585
Journal: Journal of Power Sources - Volume 282, 15 May 2015, Pages 581-585
نویسندگان
Daniel Buchholz, Christoph Vaalma, Luciana Gomes Chagas, Stefano Passerini,