Revealing the Multiple Influences of Zr Substitution on the Structural and Electrochemical Behavior of High Nickel LiNi0.8Co0.1Mn0.1O2 Cathode Material

doi:10.1021/acs.jpcc.1c01727

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	Revealing the Multiple Influences of Zr Substitution on the Structural and Electrochemical Behavior of High Nickel LiNi0.8Co0.1Mn0.1O2 Cathode Material
	Wu, Kang; Jiao, Jianyue; Li, Na; Wang, Min; Jia, Guofeng; Lee, Yu Lin; Dang, Rongbin; Deng, Xin; Xiao, Xiaoling; Wu, Zhijian
刊名	JOURNAL OF PHYSICAL CHEMISTRY C
	2021-05-20
卷号	125 期号:19 页码:10260-10273
ISSN号	1932-7447
DOI	10.1021/acs.jpcc.1c01727
英文摘要	Layered O3-phase LiNi0.8Co0.1Mn0.1O2 (NCM811) material has shown great potential for lithium-ion batteries (LIBs). However, capacity attenuation and irreversible phase transitions have been serious challenges for high nickel materials, which greatly affect their electrochemical performances and large-scale storage applications for LIBs. Therefore, this study explores a collaborative strategy to optimize the electrochemical behavior of NCM811 by introducing non-electrochemical activity Zr with high valence and strong binding energy of Zr-O into the Li layers. The enhancement of the electrochemical performances results from diversified influences of Zr doping: the strong binding energy of Zr-O can stabilize the structure and inhibit side reactions and irreversible phase transitions; substituting high valence Zr4+ into Li sites offers a wider channel for Li+ intercalation/extraction during the process of charge/discharge. Furthermore, Li/Ni mixing can be effectively regulated with appropriate amounts of Zr4+ ions as partial substitutes for Li+ ions and suitable Li/Ni mixing is beneficial to the thermal and structural stability of the materials. It is an impactful way to select the appropriate substitute element to promote electrochemical performance, and the method could also be applied to other high nickel layered cathode materials.
内容类型	期刊论文
源URL	[http://ir.isl.ac.cn/handle/363002/34346]
专题	青海盐湖研究所_盐湖资源与化学实验室
推荐引用方式 GB/T 7714	Wu, Kang,Jiao, Jianyue,Li, Na,et al. Revealing the Multiple Influences of Zr Substitution on the Structural and Electrochemical Behavior of High Nickel LiNi0.8Co0.1Mn0.1O2 Cathode Material[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2021,125(19):10260-10273.
APA	Wu, Kang.,Jiao, Jianyue.,Li, Na.,Wang, Min.,Jia, Guofeng.,...&Wu, Zhijian.(2021).Revealing the Multiple Influences of Zr Substitution on the Structural and Electrochemical Behavior of High Nickel LiNi0.8Co0.1Mn0.1O2 Cathode Material.JOURNAL OF PHYSICAL CHEMISTRY C,125(19),10260-10273.
MLA	Wu, Kang,et al."Revealing the Multiple Influences of Zr Substitution on the Structural and Electrochemical Behavior of High Nickel LiNi0.8Co0.1Mn0.1O2 Cathode Material".JOURNAL OF PHYSICAL CHEMISTRY C 125.19(2021):10260-10273.