کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1526937 1511850 2008 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Comparative study of Li[Ni1/3Co1/3Mn1/3]O2 cathode material synthesized via different synthetic routes for asymmetric electrochemical capacitor applications
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Comparative study of Li[Ni1/3Co1/3Mn1/3]O2 cathode material synthesized via different synthetic routes for asymmetric electrochemical capacitor applications
چکیده انگلیسی

Layered Li[Ni1/3Co1/3Mn1/3]O2 cathode materials were synthesized by different synthesis routes using carbonate and hydroxide co-precipitation methods. Physical properties of the prepared Li[Ni1/3Co1/3Mn1/3]O2 varied depending on the synthesis method employed. These materials were applied as a positive electrode to an asymmetric electrochemical capacitor with activated carbon as the negative electrode and the electrochemical properties of the capacitor were studied. Li[Ni1/3Co1/3Mn1/3]O2 prepared by the carbonate co-precipitation exhibited higher capacitance and better rate capability with stable cycling retention over 500 cycles than Li[Ni1/3Co1/3Mn1/3]O2 prepared by the hydroxide co-precipitation. The asymmetric electrochemical capacitor (AEC) cell (AC/Li[Ni1/3Co1/3Mn1/3]O2) had a voltage slope from 0.2 to 2.2 V and delivered a capacity of 60 F g−1 with a capacity retention of 88.4% during 500 cycles based on the overall active materials weight. The leakage current was largely decreased for the asymmetric electrochemical capacitor and the maintained voltage was 84.4% during 3 days.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 110, Issues 2–3, 15 August 2008, Pages 222–227
نویسندگان
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