کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1604918 | 1516204 | 2017 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Surface modification of Li-rich layered Li[Li0.17Ni0.17Co0.10Mn0.56]O2 oxide with LiV3O8 as a cathode material for Li-ion batteries
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Surface modification of Li-rich layered Li[Li0.17Ni0.17Co0.10Mn0.56]O2 oxide with LiV3O8 as a cathode material for Li-ion batteries Surface modification of Li-rich layered Li[Li0.17Ni0.17Co0.10Mn0.56]O2 oxide with LiV3O8 as a cathode material for Li-ion batteries](/preview/png/1604918.png)
چکیده انگلیسی
A Li-rich layered oxide Li[Li0.17Ni0.17Co0.10Mn0.56]O2 is synthesized by a chemical deposition method. The surface modification with the LiV3O8 is introduced onto Li-rich layered Li[Li0.17Ni0.17Co0.10Mn0.56]O2 oxide for the first time. The pristine and LiV3O8-coated Li[Li0.17Ni0.17Co0.10Mn0.56]O2 cathode materials are investigated by X-ray diffraction (XRD), Special surface area analysis (BET), scanning electron microscopy (SEM), transmission electron microscopy (TEM), electrochemical measurement and charge-discharge testing techniques. After coating of LiV3O8, the bulk crystallographic structure, morphology and grain size of the layered Li[Li0.17Ni0.17Co0.10Mn0.56]O2 are not essentially changed. Compared to the pristine sample, electrochemical performance of LiV3O8-coated samples has been obviously enhanced. Especially, the capacity retention of 3 wt% LiV3O8-coated sample reaches 94.3% after 100 charge/discharge cycles. Moreover, the rate capability is obviously increased for LiV3O8-coated samples with suitable thickness of coating. The discharge capacity of 3 wt% LiV3O8-coated sample at 2C rate is more than 157.9 mAh gâ1. Therefore, the surface modification with the LiV3O8 is an effective way to improve the electrochemical performance of Li-rich layered oxides.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 690, 5 January 2017, Pages 256-266
Journal: Journal of Alloys and Compounds - Volume 690, 5 January 2017, Pages 256-266
نویسندگان
Haixing Meng, Lianqiang Li, Jiaquan Liu, Xiaopeng Han, Weiguo Zhang, Xingjiang Liu, Qiang Xu,