کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
181826 459411 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of Fe doping on the electrochemical performance of LiCoPO4/C composites for high power-density cathode materials
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Effects of Fe doping on the electrochemical performance of LiCoPO4/C composites for high power-density cathode materials
چکیده انگلیسی

LiCo1−xFexPO4/C composites with various amounts of Fe (x = 0, 0.05 and 0.1) were synthesized by vibrant type ball-milling coupled with microwave heating to investigate the role of doped Fe2+ in LiCo1−xFexPO4/C composites. The initial charge–discharge curves and cyclic voltammetry profiles of LiCo1−xFexPO4/C composites apparently featured an improved kinetic property compared to LiCoPO4. It was observed that the initial discharge capacity (120 mA hg−1) of LiCo0.95Fe0.05PO4 is higher than that (108 mA hg−1) of LiCoPO4 and the difference between the oxidation–reduction peaks is getting smaller with the increase of Fe doping. The electrochemical improvement in LiCo1−xFexPO4/C composites could be attributed to the enhanced Li+ diffusivity induced by the enlargement of 1D channel in polyanion structure of LiCoPO4.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochemistry Communications - Volume 11, Issue 1, January 2009, Pages 137–140
نویسندگان
, , , , ,