Phase Heterojunction by Constructing Built-In Electric Field toward Sodium-Rich Cathode Material

doi:10.1002/adfm.202411504

IMR OpenIR

	Phase Heterojunction by Constructing Built-In Electric Field toward Sodium-Rich Cathode Material
	Lai, Qingsong 1; Liu, Chen 2; Gao, Xuan-Wen 1,3; Liu, Zhaomeng 1,3; Yang, Dongrun 1; Nie, Zhen 1; Li, Wei 1; Gu, Qinfen 4; Luo, Wen-Bin 1
通讯作者	Luo, Wen-Bin(luowenbin@smm.neu.edu.cn)
	2024-10-15
发表期刊	ADVANCED FUNCTIONAL MATERIALS
ISSN	1616-301X
页码	11
摘要	An artificial built-in electric field from phase heterojunction is constructed within sodium-rich manganese-based layer-structured oxide O3-Na[Ni0.3Mn0.55Cu0.1Ti0.05]O2@Na2MoO4 through shared oxygen atoms. The spinel Na2MoO4 phase behaves as a p-type semiconductor, while the O3-Na[Ni0.3Mn0.55Cu0.1Ti0.05]O2 phase functions as an n-type semiconductor. It can efficiently reduce the diffusion barrier and enhance electron transport, which can adequately promote the interfacial desolvation ability and reduce bulk lattice strains. The formed spinel heterostructure with crystal structure stability can also enhance the interface Na+ diffusion and protect the electrode against moisture and carbon dioxide corrosion. Besides, the molybdenum introduction within the lattice bulk can enhance the bond covalency, fortifying lattice oxygen stability and restraining structural distortion effectively. The obtained cathode demonstrates a high up to 224.61 mAh g-1 discharge specific capacity at 0.1 C and a long cycle stability with a 60.44% capacity retention after 265 cycles at 0.5 C. This study illuminates the potential of Na-rich Mn-based oxide cathodes for high-energy-density sodium battery utilizations. An artificial built-in electric field from phase heterojunction is constructed within sodium-rich manganese-based layer-structured oxide O3-Na[Ni0.3Mn0.55Cu0.1Ti0.05]O2@Na2MoO4 through shared oxygen atoms. It can efficiently reduce the diffusion barrier and enhance electron transport, which can adequately promote the interfacial desolvation ability and reduce bulk lattice strains. The formed spinel heterostructure can also enhance the interface Na+ diffusion and protect the electrode against moisture and carbon dioxide corrosion. image
关键词	anionic redox built-in electric field manganese-based cathode materials sodium battery sodium rich
资助者	National Natural Science Foundation of China
DOI	10.1002/adfm.202411504
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China ; [52272194]
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目	Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:001334596500001
出版者	WILEY-V C H VERLAG GMBH
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/190731
专题	中国科学院金属研究所
通讯作者	Luo, Wen-Bin
作者单位	1.Northeastern Univ, Inst Energy Electrochem & Urban Mines Met, Sch Met, Shenyang 110819, Liaoning, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110819, Liaoning, Peoples R China 3.Nankai Univ, Coll Chem, Key Lab Adv Energy Mat Chem, Minist Educ, Tianjin 300071, Peoples R China 4.Australian Synchrotron ANSTO, 800 Blackburn Rd, Clayton, Vic 3168, Australia
推荐引用方式 GB/T 7714	Lai, Qingsong,Liu, Chen,Gao, Xuan-Wen,et al. Phase Heterojunction by Constructing Built-In Electric Field toward Sodium-Rich Cathode Material[J]. ADVANCED FUNCTIONAL MATERIALS,2024:11.
APA	Lai, Qingsong.,Liu, Chen.,Gao, Xuan-Wen.,Liu, Zhaomeng.,Yang, Dongrun.,...&Luo, Wen-Bin.(2024).Phase Heterojunction by Constructing Built-In Electric Field toward Sodium-Rich Cathode Material.ADVANCED FUNCTIONAL MATERIALS,11.
MLA	Lai, Qingsong,et al."Phase Heterojunction by Constructing Built-In Electric Field toward Sodium-Rich Cathode Material".ADVANCED FUNCTIONAL MATERIALS (2024):11.