In Situ Conversion of Artificial Proton-Rich Shell to Inorganic Maskant Toward Stable Single-Crystal Ni-Rich Cathode

doi:10.1002/adma.202415860

IMR OpenIR

	In Situ Conversion of Artificial Proton-Rich Shell to Inorganic Maskant Toward Stable Single-Crystal Ni-Rich Cathode
	Xue, Haoyu 1; Liang, Yongzhi 1; Huang, Yuxiang 2; Ji, Yuchen 1; Xu, Zhongxing 1; Chen, Xinhan 3; Wang, Honghao 4; Liu, Jiajie 1; Amine, Khalil 5; Liu, Tongchao 5; Tan, Xinghua 1,6; Pan, Feng 1
通讯作者	Liu, Tongchao(liut@anl.gov) ; Tan, Xinghua(xhtan@imr.ac.cn) ; Pan, Feng(panfeng@pkusz.edu.cn)
	2024-12-26
发表期刊	ADVANCED MATERIALS
ISSN	0935-9648
页码	11
摘要	Single-crystal high-nickel oxide with an integral structure can prevent intergranular cracks and the associated detrimental reactions. Yet, its low surface-to-volume ratio makes surficial degradation a more critical factor in electrochemical performance. Herein, artificial proton-rich (ammonium bicarbonate) shell is successfully introduced on the nickel-rich LiNi0.92Co0.06Mn0.02O2 single crystals for in situ electrochemically conversing into inorganic maskant to enhance stability of cathode. The process is that the surficial enriched proton, once released from the ammonium bicarbonate shell (proton reservoir) during 1st charge, is immediately captured by LiPF6, in situ electrochemically conversing to LiF and Li3PO4 (sub-nano F-&P-maskant). The in situ formed compact nano F-&P-maskant significantly resists the cathode against electrolyte attack and improves the surface stability of particles during long-term cycling. Consequently, this surface modification enables 95% capacity retention after 100 cycles at a high voltage of 4.5 V in the half cell and 83% capacity retention after 800 cycles in the full cell. This work demonstrates a strategy for reconstructing the protective layer using the rational design of surficial enriched proton shells for advanced lithium batteries.
关键词	dense maskant electrochemical conversion LiF and Li3PO4 sub-nano particle nickel-rich single crystal proton
资助者	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 ; Liaoning Provincial Science Fund for Distinguished Young Scholar
DOI	10.1002/adma.202415860
收录类别	SCI
语种	英语
资助项目	Basic and Applied Basic Research Foundation of Guangdong Province ; International joint Research Center for Electric Vehicle Power Battery and Materials[2015B01015] ; Guangdong Key Laboratory of Design and calculation of New Energy Materials[2017B030301013] ; Shenzhen Key Laboratory of New Energy Resources Genome Preparation and Testing[ZDSYS201707281026184] ; Liaoning Provincial Science Fund for Distinguished Young Scholar[2024JH3/50100017] ; [2021B1515130002] ; [2023A1515111131]
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:001384396700001
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/321006/180987
专题	中国科学院金属研究所
通讯作者	Liu, Tongchao; Tan, Xinghua; Pan, Feng
作者单位	1.Peking Univ, Sch Adv Mat, Shenzhen Grad Sch, Shenzhen 518055, Peoples R China 2.Univ Hong Kong, Dept Chem, Hong Kong 999077, Peoples R China 3.Sun Yat Sen Univ, Sch Mat, Shenzhen 518107, Peoples R China 4.Chinese Univ Hong Kong, Sch Sci & Engn, Shenzhen 518172, Peoples R China 5.Argonne Natl Lab, Chem Sci & Engn Div, Lemont, IL 60439 USA 6.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	Xue, Haoyu,Liang, Yongzhi,Huang, Yuxiang,et al. In Situ Conversion of Artificial Proton-Rich Shell to Inorganic Maskant Toward Stable Single-Crystal Ni-Rich Cathode[J]. ADVANCED MATERIALS,2024:11.
APA	Xue, Haoyu.,Liang, Yongzhi.,Huang, Yuxiang.,Ji, Yuchen.,Xu, Zhongxing.,...&Pan, Feng.(2024).In Situ Conversion of Artificial Proton-Rich Shell to Inorganic Maskant Toward Stable Single-Crystal Ni-Rich Cathode.ADVANCED MATERIALS,11.
MLA	Xue, Haoyu,et al."In Situ Conversion of Artificial Proton-Rich Shell to Inorganic Maskant Toward Stable Single-Crystal Ni-Rich Cathode".ADVANCED MATERIALS (2024):11.