High-Entropy Rock-Salt Surface Layer Stabilizes the Ultrahigh-Ni Single-Crystal Cathode

doi:10.1021/acsnano.4c13911

IMR OpenIR

	High-Entropy Rock-Salt Surface Layer Stabilizes the Ultrahigh-Ni Single-Crystal Cathode
	Xu, Zhongxing 1,2; Chen, Xinghan 1,3; Fan, Wenguang 1; Zhan, Minzhi 1; Mu, Xulin 4; Cao, Hongbin 1; Wang, Xiaohu 1; Xue, Haoyu 1; Gao, Zhihai 1; Liang, Yongzhi 1; Liu, Jiajie 1; Tan, Xinghua 1,4; Pan, Feng 1
通讯作者	Liu, Jiajie(liujiajie@sz.pku.edu.cn) ; Tan, Xinghua(xhtan@imr.ac.cn) ; Pan, Feng(panfeng@pkusz.edu.cn)
	2024-11-28
发表期刊	ACS NANO
ISSN	1936-0851
卷号	18 期号:49 页码:33706-33717
摘要	Single-crystalline Ni-rich layered oxides are one of the most promising cathode materials for lithium-ion batteries due to their superior structural stability. However, sluggish lithium-ion diffusion kinetics and interfacial issues hinder their practical applications. These issues intensify with increasing Ni content in the ultrahigh-Ni regime (>= 90%), significantly threatening the practical viability of the single-crystalline strategy for ultrahigh-Ni layered oxide cathodes. Herein, by developing a high-entropy coating strategy, we successfully constructed an epitaxial lattice-coherent high-entropy rock-salt layer (similar to 3 nm) via Zr and Al doping on the surface of the single-crystalline cathode LiNi0.92Co0.05Mn0.03O2 through an in situ modification process. The surface high-entropy rock-salt layer with tailored Ni valence and lattice coherence not only greatly improves lithium-ion diffusion kinetics but also suppresses interface parasitic reactions and surface structural degradations. The high-entropy surface layer-stabilized ultrahigh-Ni single-crystalline cathode (SC-Ni92-ZA) demonstrates significantly improved rate and cycling performances (127.5 mAh g-1 at 20C, capacity retention of 74.9% after 500 cycles at 1C) in a half-cell. The SC-Ni92-ZA exhibits a capacity retention of 87.1% after 600 cycles at 1C in a full-cell. This epitaxial lattice-coherent high-entropy coating strategy develops a promising avenue for developing high-capacity, long-life cathode materials.
关键词	layered oxide single-crystalline cathodes ultrahigh-Ni high-entropy lithium-ion batteries
资助者	Basic and Applied Basic Research Foundation of Guangdong Province ; Guangdong Basic and Applied Basic Research Foundation ; Basic and Applied Basic Research Foundation of Guangdong Province ; International joint Research Center for Electric Vehicle Power Battery and Materials ; Guangdong Key Laboratory of Design and calculation of New Energy Materials ; Shenzhen Key Laboratory of New Energy Resources Genome Preparation and Testing
DOI	10.1021/acsnano.4c13911
收录类别	SCI
语种	英语
资助项目	Basic and Applied Basic Research Foundation of Guangdong Province[2023A1515111131] ; Guangdong Basic and Applied Basic Research Foundation[2021B1515130002] ; Basic and Applied Basic Research Foundation of Guangdong Province[2015B01015] ; International joint Research Center for Electric Vehicle Power Battery and Materials[2017B030301013] ; Guangdong Key Laboratory of Design and calculation of New Energy Materials[ZDSYS201707281026184] ; Shenzhen Key Laboratory of New Energy Resources Genome Preparation and Testing
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
WOS类目	Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号	WOS:001366348100001
出版者	AMER CHEMICAL SOC
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/321006/181513
专题	中国科学院金属研究所
通讯作者	Liu, Jiajie; Tan, Xinghua; Pan, Feng
作者单位	1.Peking Univ, Sch Adv Mat, Shenzhen Grad Sch, Shenzhen 518055, Peoples R China 2.Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Shanghai 200240, Peoples R China 3.Sun Yat Sen Univ, Sch Mat, Shenzhen 518107, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Xu, Zhongxing,Chen, Xinghan,Fan, Wenguang,et al. High-Entropy Rock-Salt Surface Layer Stabilizes the Ultrahigh-Ni Single-Crystal Cathode[J]. ACS NANO,2024,18(49):33706-33717.
APA	Xu, Zhongxing.,Chen, Xinghan.,Fan, Wenguang.,Zhan, Minzhi.,Mu, Xulin.,...&Pan, Feng.(2024).High-Entropy Rock-Salt Surface Layer Stabilizes the Ultrahigh-Ni Single-Crystal Cathode.ACS NANO,18(49),33706-33717.
MLA	Xu, Zhongxing,et al."High-Entropy Rock-Salt Surface Layer Stabilizes the Ultrahigh-Ni Single-Crystal Cathode".ACS NANO 18.49(2024):33706-33717.