A new synthesis route of high-performance P ' 2-Na(0.67)Fe(0.1)Mn(0.9)O2-delta and its sodium storage properties for sodium-ion batteries

doi:10.1016/j.jpowsour.2023.233228

IMR OpenIR

	A new synthesis route of high-performance P ' 2-Na(0.67)Fe(0.1)Mn(0.9)O2-delta and its sodium storage properties for sodium-ion batteries
	Su, Chang 1; Liu, Guoqiang 1; Liu, Guangyin 2; Wen, Lei 3
通讯作者	Liu, Guoqiang(liugq@smm.neu.edu.cn) ; Wen, Lei(leiwen@imr.ac.cn)
	2023-08-30
发表期刊	JOURNAL OF POWER SOURCES
ISSN	0378-7753
卷号	576 页码:9
摘要	The P2-Na0.67Fe0.1Mn0.9O2 materials with P6(3)/mmc space group structure is a promising cathode material for sodium-ion batteries due to its low cost and high capacity. However, the occurrence of various phase transitions reduces the cycle reversibility of the compound. In this study, P'2-Na0.67Fe0.1Mn0.9O2-delta with Cmcm space group structure is synthesized by regulating oxygen vacancies content for the first time. The effect of oxygen vacancies on the structural evolution of the material during charge-discharge processes is further investigated by in-situ Xray diffraction (XRD) techniques. Compared to P2-Na0.67Fe0.1Mn0.9O1.98, P'2-Na0.67Fe0.1Mn0.9O2-delta experiences smaller Jahn-Teller distortion when intercalating and deintercalting Na+. Meanwhile, it exhibits better electrochemical performance. The initial discharge capacity reaches 200 mAh g(-1) at a current density of 20 mA g(-1) with the capacity retention of 70.8% after 200 cycles at the current density of 400 mA g(-1).
关键词	P ' 2 type layered oxide cathode Oxygen vacancies Sodium-ion batteries Suppress phase transition
资助者	National Natural Science Foun-dation of China
DOI	10.1016/j.jpowsour.2023.233228
收录类别	SCI
语种	英语
资助项目	National Natural Science Foun-dation of China[51574081]
WOS研究方向	Chemistry ; Electrochemistry ; Energy & Fuels ; Materials Science
WOS类目	Chemistry, Physical ; Electrochemistry ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS记录号	WOS:001010591500001
出版者	ELSEVIER
引用统计	被引频次：12[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/321006/178457
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 Multimet Mineral, Minist Educ, Shenyang 110819, Liaoning, Peoples R China 2.Nanyang Normal Univ, Coll Chem & Pharmaceut Engn, Nanyang 473061, Henan, 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	Su, Chang,Liu, Guoqiang,Liu, Guangyin,et al. A new synthesis route of high-performance P ' 2-Na(0.67)Fe(0.1)Mn(0.9)O2-delta and its sodium storage properties for sodium-ion batteries[J]. JOURNAL OF POWER SOURCES,2023,576:9.
APA	Su, Chang,Liu, Guoqiang,Liu, Guangyin,&Wen, Lei.(2023).A new synthesis route of high-performance P ' 2-Na(0.67)Fe(0.1)Mn(0.9)O2-delta and its sodium storage properties for sodium-ion batteries.JOURNAL OF POWER SOURCES,576,9.
MLA	Su, Chang,et al."A new synthesis route of high-performance P ' 2-Na(0.67)Fe(0.1)Mn(0.9)O2-delta and its sodium storage properties for sodium-ion batteries".JOURNAL OF POWER SOURCES 576(2023):9.