气候变化领域集成服务门户(CCPortal): LiMnO2 cathode stabilized by interfacial orbital ordering for sustainable lithium-ion batteries

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DOI	10.1038/s41893-020-00660-9
	LiMnO2 cathode stabilized by interfacial orbital ordering for sustainable lithium-ion batteries
	Zhu X.; Meng F.; Zhang Q.; Xue L.; Zhu H.; Lan S.; Liu Q.; Zhao J.; Zhuang Y.; Guo Q.; Liu B.; Gu L.; Lu X.; Ren Y.; Xia H.
发表日期	2021
ISSN	2398-9629
起始页码	392
结束页码	401
卷号	4 期号:5
英文摘要	Global lithium-ion battery deployments stand poised to grow substantially in the coming years, but it will be necessary to include sustainability considerations in the design of electrode materials. The current cathode chemistry relies heavily on cobalt, which, due to its scarcity and the environmental abuse and violation of human rights during its mining, must be replaced by abundant and environmentally friendly elements such as redox-active manganese. LiMnO2 is a strong contender for sustainable cathodes but cycles poorly because the Jahn–Teller distorted Mn3+ ions destabilize the lattice framework. Here, we report a LiMnO2 cathode design with interwoven spinel and layered domains. At the interface between these two domains, the Mn dz2 orbitals are oriented perpendicular to each other, giving rise to interfacial orbital ordering, which suppresses the otherwise cooperative Jahn–Teller distortion and Mn dissolution. As a result, the heterostructured cathode delivers enhanced structural and electrochemical cycling stability. This work provides a new strategy for interface engineering, possibly stimulating more research on Mn-rich cathode materials for sustainable lithium-ion batteries. © 2020, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
scopus关键词	Cathodes; Engineering research; Ions; Lithium compounds; Manganese compounds; Redox reactions; Sustainable development; Cathode design; Electrochemical cycling stability; Electrode material; Environmental abuse; Interface engineering; Lattice framework; Mn dissolutions; Sustainability considerations; Lithium-ion batteries
来源期刊	Nature Sustainability
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/249793
作者单位	School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, China; Herbert Gleiter Institute of Nanoscience, Nanjing University of Science and Technology, Nanjing, China; Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, China; Songshan Lake Materials Laboratory, Dongguan, China; School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, China; Department of Physics, City University of Hong Kong, Hong Kong; School of Materials, Sun Yat-Sen University, Guangzhou, China; X-Ray Science Division, Argonne National Laboratory, Argonne, IL, United States
推荐引用方式 GB/T 7714	Zhu X.,Meng F.,Zhang Q.,et al. LiMnO2 cathode stabilized by interfacial orbital ordering for sustainable lithium-ion batteries[J],2021,4(5).
APA	Zhu X..,Meng F..,Zhang Q..,Xue L..,Zhu H..,...&Xia H..(2021).LiMnO2 cathode stabilized by interfacial orbital ordering for sustainable lithium-ion batteries.Nature Sustainability,4(5).
MLA	Zhu X.,et al."LiMnO2 cathode stabilized by interfacial orbital ordering for sustainable lithium-ion batteries".Nature Sustainability 4.5(2021).