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Research Progress on Modifications of Ni-rich Ternary Cathode Materials (LiNi1-x-yCoxMnyO2) for Lithium-ion Batteries
Received:July 25, 2018  Revised:November 15, 2018
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Keywords:lithium-ion battery  cathode material  high nickel ternary material  modification
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邓七九 dengqijiu@hotmail.com
田聪聪 820713842@qq.com
凤帅帅 1135365159@qq.com
惠鹏 731575590@qq.com
燕映霖 yyl3550@xaut.edu.cn
杨蓉 yangrong@xaut.edu.cn
许云华 xuyunhua@vip.163.com
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      With the rapid development of new energy industrial, higher requirements have been put forward to the comprehensive performance of energy materials and devices. Lithium-ion cathode materials, especially high nickel ternary materials (LiNi1-x-yCoxMnyO2), with high energy density, high working voltage and excellent chemical stability, were considered as one of the superior cathode materials for the next generation power batteries. In this review, the current advantages and disadvantages of the high nickel ternary materials are analyzed. On the basis of this, their modification methodologies are reviewed, mainly including doping cations and anions, surface coating, design of concentration gradient materials and graphene compounding. Finally, we expect the future development directions and commercial application prospects.