کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10270668 | 460076 | 2018 | 33 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Construction of homogeneously Al3+ doped Ni rich Ni-Co-Mn cathode with high stable cycling performance and storage stability via scalable continuous precipitation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Ni-rich LiNi0.8Co0.1Mn0.1O2 cathode materials have been considered as one of the promising candidates for high energy density lithium-ion battery, but they still suffer from capacity fading and safety caused by structural degradation, insufficient thermal stability and poor storage properties. In the current work, homogeneously Al3+ doped Ni rich cathode with high stable cycling performance and storage stability was constructed via scalable continuous precipitation. With the more homogeneous distribution of Al3+ in the secondary agglomerates, the Ni rich cathode synthesized from Al3+ doped hydroxide precursor showed more perfect sphere, decreased ratio of Ni2+/Ni3+ and Li+/Ni2+ disorder in the internal of agglomerates. The homogeneously Al3+ doped Ni rich LiNi0.8Co0.1Mn0.09Al0.01O2 cathode exhibited much improved cycling performance, with a capacity retention of 78.92% at 1â¯C rate after 200 cycles, and a capacity retention of 70.0% at 10â¯C rate after 1000 cycles. Additionally, the homogeneous substitution of Al could significantly prevent the reaction with H2O and CO2 during storage process and improve storage stability.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 291, 20 November 2018, Pages 84-94
Journal: Electrochimica Acta - Volume 291, 20 November 2018, Pages 84-94
نویسندگان
Yong-Chun Li, Wei Xiang, Zhen-Guo Wu, Chun-Liu Xu, Ya-Di Xu, Yao Xiao, Zu-Guang Yang, Chun-Jin Wu, Gen-Pin Lv, Xiao-Dong Guo,