کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
63919 48260 2014 16 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Lithium manganese spinel materials for high-rate electrochemical applications
ترجمه فارسی عنوان
مواد اسپینل منگنز لیتیم برای کاربردهای الکتروشیمیایی با سرعت بالا
کلمات کلیدی
باتری های لیتیوم یون، برنامه های کاربردی با سرعت بالا، مواد کاتد، اسپینل ها
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
چکیده انگلیسی

In order to successively compete with supercapacitors, an ability of fast discharge is a must for lithium-ion batteries. From this point of view, stoichiometric and substituted lithium manganese spinels as cathode materials are one of the most prospective candidates, especially in their nanosized form. In this article, an overview of the most recent data regarding physico-chemical and electrochemical properties of lithium manganese spinels, especially, LiMn2O4 and LiNi0.5Mn1.5O4, synthesized by means of various methods is presented, with special emphasis of their use in high-rate electrochemical applications. In particular, specific capacities and rate capabilities of spinel materials are analyzed. It is suggested that reduced specific capacity is determined primarily by the aggregation of material particles, whereas good high-rate capability is governed not only by the size of crystallites but also by the perfectness of crystals. The most technologically advantageous solutions are described, existing gaps in the knowledge of spinel materials are outlined, and the ways of their filling are suggested, in a hope to be helpful in keeping lithium batteries afloat in the struggle for a worthy place among electrochemical energy systems of the 21st century.

Graphical AbstractAn ideal electrode material should consist of nonaggregated, nanosized, perfect single crystals. A balance between high rate propeties and capacities should be determined not only by the size of crystals but also by their perfectness and ability to aggregation.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Energy Chemistry - Volume 23, Issue 5, September 2014, Pages 543–558
نویسندگان
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