High stability of Cu-doped O3-type NaNi1/3Fe1/3Mn1/3O2 cathode material for sodium-ion battery

doi:10.1007/s11581-024-05511-7

IMR OpenIR

	High stability of Cu-doped O3-type NaNi_1/3Fe_1/3Mn_1/3O₂ cathode material for sodium-ion battery
	Xu, Xiaojing 1; Liu, Guoqiang 1,2; Su, Chang 1; Zhang, Yixuan 1; Wen, Lei 3
通讯作者	Liu, Guoqiang(liugq@smm.neu.edu.cn) ; Wen, Lei(leiwen@imr.ac.cn)
	2024-05-09
发表期刊	IONICS
ISSN	0947-7047
页码	11
摘要	In this work, Cu-doped O3-Na[Fe1/3Ni1/3Mn1/3](1-x)CuxO2 cathodes were studied to enhance the structure stability and air stability. XPS analysis reveals that Cu-doping changes the electronic structure of Mn, thus enhancing the electrochemical performance of the NFM. The Cu-doped O3-Na[Fe1/3Ni1/3Mn1/3](0.95)Cu0.05O2 (NFMC-0.05) cathode remains a capacity of 81.6 mAh g(-1) at 10 C and keeps a capacity retention of 80.7% after 200 cycles at 0.5 C, while the undoped O3-NaFe1/3Ni1/3Mn1/3O2 (NFM) can only remain a capacity of 59.9 mAh g(-1) at 10 C and keep a capacity retention of 68.9% after 200 cycles at 0.5 C. The 9-day air-exposed NFMC-0.05 exhibits a higher capacity of 97.3 mAh g(-1) than the 9-day air-exposed NFM (58 mAh g(-1)) at 0.1 C, showing greatly enhanced air stability. Moreover, Cu-doping reduces the Rct value and the polarization, leading to a significant improvement in electronic conductivity. These results confirm that a small quantity (5 at. %) of Cu-doping improves the structural stability and air stability of the material, leading to the excellent electrochemical performance.
关键词	Cu-doping O3-Na[Fe1/3Ni1/3Mn1/3](1-x)CuxO2 Structure stability, Air stability
资助者	National Natural Science Foundation of China
DOI	10.1007/s11581-024-05511-7
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China ; [51574081]
WOS研究方向	Chemistry ; Electrochemistry ; Physics
WOS类目	Chemistry, Physical ; Electrochemistry ; Physics, Condensed Matter
WOS记录号	WOS:001221010300001
出版者	SPRINGER HEIDELBERG
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/185925
专题	中国科学院金属研究所
通讯作者	Liu, Guoqiang; Wen, Lei
作者单位	1.Northeastern Univ, Sch Met, Key Lab Ecol Met Multimetall Mineral, Minist Educ, Shenyang 110819, Peoples R China 2.Sichuan Vocat & Tech Coll, Suining 629000, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Xu, Xiaojing,Liu, Guoqiang,Su, Chang,et al. High stability of Cu-doped O3-type NaNi_1/3Fe_1/3Mn_1/3O₂ cathode material for sodium-ion battery[J]. IONICS,2024:11.
APA	Xu, Xiaojing,Liu, Guoqiang,Su, Chang,Zhang, Yixuan,&Wen, Lei.(2024).High stability of Cu-doped O3-type NaNi_1/3Fe_1/3Mn_1/3O₂ cathode material for sodium-ion battery.IONICS,11.
MLA	Xu, Xiaojing,et al."High stability of Cu-doped O3-type NaNi_1/3Fe_1/3Mn_1/3O₂ cathode material for sodium-ion battery".IONICS (2024):11.