کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
196481 459842 2006 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Enhanced electrochemical and thermal stability of surface-modified LiCoO2 cathode by CeO2 coating
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Enhanced electrochemical and thermal stability of surface-modified LiCoO2 cathode by CeO2 coating
چکیده انگلیسی

CeO2-coated LiCoO2 particles were successfully synthesized by a sol–gel coating of CeO2 on the surface of the LiCoO2 powder and subsequent heat treatment at 700 °C for 5 h. The surface-modified and pristine LiCoO2 powders were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Auger electron spectroscopy (AES), slow rate cyclic voltammogram (CV), and differential scanning calorimetry (DSC). Cyclic voltammetry curves suggested that the CeO2 coating suppressed the phase transitions. Unlike pristine LiCoO2, the CeO2-coated LiCoO2 cathode exhibited better capacity retention than the pristine LiCoO2 electrode in the higher cutoff voltage. Differential scanning calorimetric data revealed the higher thermal stability of the CeO2-coated LiCoO2 electrode.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 51, Issue 16, 10 April 2006, Pages 3297–3302
نویسندگان
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