کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1296465 973781 2011 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
From ‘core–shell’ to composite mixed cathode materials for rechargeable lithium batteries by mechanochemical process
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
From ‘core–shell’ to composite mixed cathode materials for rechargeable lithium batteries by mechanochemical process
چکیده انگلیسی

Solid state mechanical activation method was applied for surface modification of LiMn2O4 by Li–M–O (M = Co, Co+Ni) and for preparation of composite mixed LiMn2O4/LiCoO2 cathode materials. Pristine LiMn2O4 was ground with correspondent precursors (for coating) or with LiCoO2 (for composites) in high-energy planetary mills and then heat treated at different temperatures. As prepared materials were studied by XRD, 7Li MAS NMR spectroscopy, XPS, SEM and electrochemical cycling. It has been shown that both ‘core–shell’ and composite materials prepared by mechanochemical process are characterized by superior electrochemical performance due to smaller particles and chemical modification of LiMn2O4.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Ionics - Volume 192, Issue 1, 16 June 2011, Pages 284–288
نویسندگان
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