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
![عکس صفحه اول مقاله: Rational design of a high-energy LiNi0.8Co0.15Al0.05O2 cathode for Li-ion batteries Rational design of a high-energy LiNi0.8Co0.15Al0.05O2 cathode for Li-ion batteries](/preview/png/7744251.png)
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,