کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1285979 973169 2007 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electrochemical stability of core–shell structure electrode for high voltage cycling as positive electrode for lithium ion batteries
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Electrochemical stability of core–shell structure electrode for high voltage cycling as positive electrode for lithium ion batteries
چکیده انگلیسی

The core–shell type cathode material Li[(Ni0.8Co0.1Mn0.1)0.8(Ni0.5Mn0.5)0.2]O2 (CS) for Li-ion battery was synthesized via co-precipitation method. The electrochemical and thermal properties of the core–shell structured Li[(Ni0.8Co0.1Mn0.1)0.8(Ni0.5Mn0.5)0.2]O2 were compared with those of the average composition of core–shell Li[Ni0.74Co0.08Mn0.18]O2 (ACCS) and the mixture of the core Li[Ni0.8Co0.1Mn0.1]O2 and the shell Li[Ni0.5Mn0.5]O2 material (MCS). The CS shows the enhanced electrochemical properties in a high voltage range (4.5 V and 4.6 V) as well as the typical cut-off voltage range (4.3 V). The capacity retentions of CS, core, and ACCS material were 94.2% (176.9 mAh g−1), 86.6% (172 mAh g−1), and 88.4% (169.3 mAh g−1) after 120 cycles, respectively.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 174, Issue 2, 6 December 2007, Pages 658–662
نویسندگان
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