کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7990420 | 1516128 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Promoting the electrochemical performance of LiNi0.8Co0.1Mn0.1O2 cathode via LaAlO3 coating
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
LiNi0.8Co0.1Mn0.1O2 cathode materials with high energy density, low cost possesses the potential to meet the development of next-generation lithium ion batteries for electrical vehicles. Nevertheless, the practical applications of LiNi0.8Co0.1Mn0.1O2 were severely hindered by poor cycling stability, limited storage properties and insufficient safety due to the unstable structure with high nickel content. Though surface coating could effectively protect the cathode from electrolyte attackï¼it usually suffers deteriorative electronic and ion conductivity. In this report, LaAlO3 coating, which possesses high ion conductivity and stable structure, was firstly implemented via a simple solid method and extensively investigated with various techniques to clarify the coating effect. The sample with optimized LaAlO3 coating content (3.0â¯wt%) showed significantly improved cycle stability with a high capacity retention of 84.5% after 200 cycles at 1.0â¯Cï¼which is about two times higher than that of the pristine (40.6%). And some further investigations also demonstrated the enhanced structural stability, suppressed side reactions and facilitated lithium ion diffusion kinetics.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 766, 25 October 2018, Pages 546-555
Journal: Journal of Alloys and Compounds - Volume 766, 25 October 2018, Pages 546-555
نویسندگان
Yong-Chun Li, Wei-Min Zhao, Wei Xiang, Zhen-Guo Wu, Zu-Guang Yang, Chun-Liu Xu, Ya-Di Xu, En-Hui Wang, Chun-Jin Wu, Xiao-Dong Guo,