کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1413115 1508840 2016 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Enhanced Li-storage performances of dually-protected CoGeO3 nanocomposites as anode materials for lithium ion batteries
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
پیش نمایش صفحه اول مقاله
Enhanced Li-storage performances of dually-protected CoGeO3 nanocomposites as anode materials for lithium ion batteries
چکیده انگلیسی

A facile route to dually-protected CoGeO3 nanoparticle hybrids has been established. Reduced graphene oxide(rGO)-covered and carbon-encapsulated CoGeO3 nanoparticles were utilized as anode materials for Li ion batteries. Such a rationally designed structure could effectively accommodate the volume expansion of CoGeO3 nanoparticles during Li-cycling. As a consequence, remarkable electrochemical performances, i.e. high first discharge capacity (2000 mAh g−1) and charge capacity (1300 mAh g−1), excellent reversible capacity of 782 mAh g−1 after 50 cycles under a current density of 200 mA g−1, and outstanding rate performance, have been garnered for CoGCs/C-4 composite electrodes, in which electrochemically active materials contained 19.5 wt% rGO and 3.7 wt% pyrolytic carbon. These advantageous attributes make dually-protected CoGeO3 particles the potential anode materials for LIBs.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbon - Volume 107, October 2016, Pages 352–360
نویسندگان
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