کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10568451 | 973429 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electrochemical characterization of high-performance LiNi0.8Co0.2O2 cathode materials for rechargeable lithium batteries
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Electrochemical characterization of high-performance LiNi0.8Co0.2O2 cathode materials for rechargeable lithium batteries Electrochemical characterization of high-performance LiNi0.8Co0.2O2 cathode materials for rechargeable lithium batteries](/preview/png/10568451.png)
چکیده انگلیسی
The cathode material, LiNi0.8Co0.2O2 was synthesized by acid dissolution method using lithium carbonate, nickel hydroxide (carbonate), cobalt hydroxide (carbonate) as insoluble starting materials, and acrylic acid, which acts as an organic acid as well as a chelating agent. Structural and chemical characterization of the spray-dried xerogel precursor was performed through its compositional and thermogravimetric analysis (TGA), which shows that the xerogel can be expressed as Li[MA]3, where M is the transition metal atom. The electrochemical performance of the synthesized powder was tested manufacturing the coin-type cells with lithium metal as an anode material. With the voltage range of 3.0-4.2 V, the capacity retentions after 50 cycles were 98.6 and 94.5%, respectively, for the powders calcined at 800 °C for 15 and 20 h. At the rate capability test, discharge capacity ratio between 3.0 and 0.5 C rate is about 91-84% till 60 cycles.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 140, Issue 1, 10 January 2005, Pages 145-150
Journal: Journal of Power Sources - Volume 140, Issue 1, 10 January 2005, Pages 145-150
نویسندگان
Si Hyoung Oh, Woon Tae Jeong, Won Il Cho, Byung Won Cho, Kyoungja Woo,