کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7731096 | 1497938 | 2015 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis of multimodal porous ZnCo2O4 and its electrochemical properties as an anode material for lithium ion batteries
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In the present paper, flower-like multimodal porous ZnCo2O4 microspheres, comprised of numerous nanosheets, are synthesized through PVP assist solvothermal self-assembling process. The multimodal porous ZnCo2O4 microspheres are characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). A possible formation mechanism of two steps self-assemble is proposed. The ZnCo2O4 microspheres are then used as an anode material to fabricate lithium ion batteries. The results based on the evaluation of lithium ion batteries demonstrate that the porous microstructure offers the excellent electrochemical performance with high capacity and long-life cycling stability. It is found that a high reversible capacity of 940 and 919 mAh gâ1 is maintained after 100 cycles at a low charge-discharge rate of 0.1C and 0.2C (100 and 200 mA gâ1), respectively. Meanwhile, the remaining discharging capacity reaches as high as 856 mAh gâ1 after 1000 cycles subject to the large current density up to 1C.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 294, 30 October 2015, Pages 112-119
Journal: Journal of Power Sources - Volume 294, 30 October 2015, Pages 112-119
نویسندگان
Shiji Hao, Bowei Zhang, Sarah Ball, Mark Copley, Zhichuan Xu, Madhavi Srinivasan, Kun Zhou, Subodh Mhaisalkar, Yizhong Huang,