کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7744251 | 1498220 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Rational design of a high-energy LiNi0.8Co0.15Al0.05O2 cathode for Li-ion batteries
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The energy density of lithium ion batteries heavily relies on the loading of electrochemically active materials in their cathode. LiNi0.8Co0.15Al0.05O2 (NCA) as a promising high-energy cathode material has a practical specific capacity of about 200â¯mAhâ¯gâ1 which, however, is often compromised by the additives in the electrode, such as the conductive carbon and binder. To harvest a higher energy density NCA electrode, cyclic voltammetry and galvanostatic intermittent titration techniques are employed herein to evaluate the apparent chemical diffusion coefficient of Li+ and maximize the loading of NCA. Our results show that the carbon content can be reduced to 0.2â¯wt% (with 97.8â¯wt% of NCA), making a high-energy cathode for Li-ion batteries. This protocol would also set a precedent for the energy density optimization of other cathodes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Ionics - Volume 323, 1 October 2018, Pages 72-77
Journal: Solid State Ionics - Volume 323, 1 October 2018, Pages 72-77
نویسندگان
Ning Ding, Xiangjun Wang, Yinglan Hou, Suxi Wang, Xu Li, Derrick Wen Hui Fam, Yun Zong, Zhaolin Liu,