کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10624994 989613 2014 21 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Long cycle life, high rate capability of truncated octahedral LiMn2O4 cathode materials synthesized by a solid-state combustion reaction for lithium ion batteries
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Long cycle life, high rate capability of truncated octahedral LiMn2O4 cathode materials synthesized by a solid-state combustion reaction for lithium ion batteries
چکیده انگلیسی
Truncated octahedral LiMn2O4 nanoparticles were prepared by a high temperature solid-state combustion reaction using starch as fuel. The structure and morphology of the as-prepared material were analyzed by X-ray diffraction and electron microscopy. The results obtained show that the materials possess a perfect spinel structure, truncated octahedral morphology with an average grain size about 101.8 nm and uniform particle size distribution. The truncated octahedral LiMn2O4 exhibits high capacity and long-term cyclability with an initial discharge capacity of 107.9 mAh g-1 at 5 C. The capacity retention is 91.39% after 1000 cycles at 20 C. The excellent electrochemical performance can be mainly attributed to the nano-sized truncated octahedral structure, narrow particle size distribution and relatively lower crystallinity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 40, Issue 9, Part A, November 2014, Pages 14039-14043
نویسندگان
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