Study on the influence of different manganese sources on the formation of P2/n Bi-phase cathode materials for sodium ion batteries

doi:10.1016/j.jpowsour.2024.235117

IMR OpenIR

	Study on the influence of different manganese sources on the formation of P2/n Bi-phase cathode materials for sodium ion batteries
	Zhang, Yixuan 1; Liu, Guo-Qiang 1,2; Qiao, Danlei 3; Chen, Jiaguan 1; Sun, Qiang 1; Wen, Lei 4
通讯作者	Liu, Guo-Qiang(liugq@smm.neu.edu.cn)
	2024-11-15
发表期刊	JOURNAL OF POWER SOURCES
ISSN	0378-7753
卷号	620 页码:9
摘要	This work focuses on the effect of the of Mn3+/Mn4+ ratio in the reactants on the structure and electrochemical properties of NaMn0.9Cu0.1O2 cathode materials for sodium-ion batteries. By systematically varying the manganese valence states in the reactants, we observed a phase transition from the n-phase to the P2-phase with increasing Mn3+ concentrations in the reactants, contrary to the expected favorability of the n-phase at higher Mn3+ levels. This finding suggests a complex interplay between the valence states of the reactants and phase formation mechanisms, which needs further investigation. Additionally, electrochemical testing indicated that the phase composition significantly impacts the electrochemical performance of the material. Specifically, the M0 sample, possessing the optimal P2/n ratio, exhibited excellent electrochemical performances, achieving a high initial discharge capacity of 155.1 mA h g- 1 and remains 88.1 % after 40 cycles. These results emphasize the importance of precursor selection and valence management in the development of high-performance cathode materials for sodium-ion batteries.
关键词	Sodium-ion battery Layered cathode material Manganese sources control Phase transition Electrochemical performance Material synthesis
资助者	Foundation of China
DOI	10.1016/j.jpowsour.2024.235117
收录类别	SCI
语种	英语
资助项目	Foundation of China[U23B20139]
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:001297659900001
出版者	ELSEVIER
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/189225
专题	中国科学院金属研究所
通讯作者	Liu, Guo-Qiang
作者单位	1.Northeastern Univ, Sch Met, Key Lab Ecol Met Multimet Mineral, Minist Educ, Shenyang 110819, Peoples R China 2.Sichuan Vocat & Tech Coll, Suining 629000, Sichuan, Peoples R China 3.CRRC Qingdao Sifang Rolling Stock Res Inst Co Ltd, Qingdao 266031, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yixuan,Liu, Guo-Qiang,Qiao, Danlei,et al. Study on the influence of different manganese sources on the formation of P2/n Bi-phase cathode materials for sodium ion batteries[J]. JOURNAL OF POWER SOURCES,2024,620:9.
APA	Zhang, Yixuan,Liu, Guo-Qiang,Qiao, Danlei,Chen, Jiaguan,Sun, Qiang,&Wen, Lei.(2024).Study on the influence of different manganese sources on the formation of P2/n Bi-phase cathode materials for sodium ion batteries.JOURNAL OF POWER SOURCES,620,9.
MLA	Zhang, Yixuan,et al."Study on the influence of different manganese sources on the formation of P2/n Bi-phase cathode materials for sodium ion batteries".JOURNAL OF POWER SOURCES 620(2024):9.