کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1522494 | 995311 | 2013 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fabrication of Cu2S cathode for Li-ion battery via a low temperature dry thermal sulfuration method
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
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چکیده انگلیسی
Cu2S film that directly grows on porous Cu foam has been fabricated by a novel dry thermal sulfuration approach. The crystalline structure and morphological observation of the as-synthesized Cu2S/Cu were characterized by X-Ray diffraction (XRD) and field-emission scanning electron microscopy (FE-SEM), respectively. The electrochemical performance of the Cu2S/Cu as cathode for Li-ion battery was studied by charge/discharge test and cyclic voltammetry (CV) measurement. The results indicate that the Cu2S/Cu cathode exhibits excellent cycle stability and rate capability. When applying a charge/discharge rate of 0.25 C, it delivers initial discharge and charge capacity of 0.74 and 0.40 mAh cmâ2, respectively. After 100 cycles, the discharge and charge capacity are both 0.41 mAh cmâ2, showing no obvious capacity attenuation. Besides, even after 140 cycles at various rates from 0.3 C to 60 C, the discharge capacity of the Cu2S/Cu cathode can restore 97.8% when lowering the charge/discharge rate to 0.3 C.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 143, Issue 1, 16 December 2013, Pages 349-354
Journal: Materials Chemistry and Physics - Volume 143, Issue 1, 16 December 2013, Pages 349-354
نویسندگان
Shibing Ni, Xiaohu Lv, Tao Li, Xuelin Yang,