کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
195866 459823 2006 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Impact of cobalt substitution for manganese on the structural and electrochemical properties of LiNi0.5Mn0.5O2
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Impact of cobalt substitution for manganese on the structural and electrochemical properties of LiNi0.5Mn0.5O2
چکیده انگلیسی

A series of LiNi0.5Mn0.5−xCoxO2 (0 ≤ x ≤ 0.5) compounds was prepared by a solid state reaction, and their structure, surface state and electrochemical characteristics were also investigated by XRD, XPS, EIS and charge–discharge cycling. The non-equivalent substitution of cobalt for manganese induced an increase in the average valence of nickel, thereby shrinking in the lattice volume. Moreover, Co non-equivalent substitution could not only reduce the impurity content but also significantly decreased the charge transfer resistance, thereby improving the rate capabilities.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 51, Issue 18, 5 May 2006, Pages 3809–3813
نویسندگان
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