锂离子电池镍钴锰/铝三元浓度梯度正极材料的研究进展
收稿日期: 2018-10-11
修回日期: 2019-01-04
网络出版日期: 2019-01-15
基金资助
福建省高校产学研重点资助项目(2018H6020);福建省科技重大专项/专题(2014HZ0002-1)
版权
Research Progresses in Ni-Co-Mn/Al Ternary Concentration Gradient Cathode Materials for Li-Ion Batteries
Received date: 2018-10-11
Revised date: 2019-01-04
Online published: 2019-01-15
Copyright
张春芳 , 赵文高 , 郑时尧 , 李益孝 , 龚正良 , 张忠如 , 杨勇 . 锂离子电池镍钴锰/铝三元浓度梯度正极材料的研究进展[J]. 电化学, 2020 , 26(1) : 73 -83 . DOI: 10.13208/j.electrochem.181011
Nickel-rich ternary materials with large reversible capacity as well as high operating voltage are considered as the most promising candidate for next generation lithium-ion batteries (LIBs). However, the inferior cycle stability and thermal stability have limited their widely commercial applications. Concentration gradient design of Ni-Co-Mn/Al ternary concentration gradient materials have been extensively studied in the past decade, which can ensure high cycle capacity while maintaining excellent cycle stability. In this paper, the latest research progresses in Ni-Co-Mn/Al ternary concentration gradient materials for LIBs are reviewed. Firstly, we summarize the different synthesis methods of ternary concentration-gradient materials, especially focusing on the research directions towards core-shell concentration gradient (CSCG) materials and full concentration gradient (FCG) ternary materials. In addition, this review also introduces the structural characterizations for concentration gradient ternary materials and reveals the reasons for their performance improvements. Finally, we discuss the current challenges of CSCG and FCG materials in the industrialization and display possible solutions to address them.
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