کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
1531828 1512018 2006 6 صفحه PDF سفارش دهید دانلود رایگان
عنوان انگلیسی مقاله ISI
Phase transformation of LiNi0.75Co0.25O2
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موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Phase transformation of LiNi0.75Co0.25O2
چکیده انگلیسی

In this article, the phase transformation of cathode material, LiNi0.75Co0.25O2, prepared by sol–gel pretreatment and solid-phase formation, was studied in detail. The characteristic temperatures associated with the phase transformation of LiNi0.75Co0.25O2 were selected. Accordingly, two series of experiments at different temperatures were performed in situ and ex situ by XRD and SEM to examine the structure and morphology of the material during the phase transformation. It was found that at the temperature below 600 °C a cubic structure was formed and the nickel metal in the material was presented as Ni2+. A hexangular layer structure started to form when the temperature reached or became higher than 600 °C. The structure became better defined with the increase of temperature. The material was characteristic of R-3 m spatial structure at 725 °C.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: B - Volume 133, Issues 1–3, 25 August 2006, Pages 8–13
نویسندگان
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