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Title: Temperature-Sensitive Structure Evolution of Lithium–Manganese-Rich Layered Oxides for Lithium-Ion Batteries

Abstract

Cathodes of lithium-rich layered oxides for high-energy Li-ion batteries in electrically powered vehicles are attracting considerable attention by the research community. Furthermore, current research is insufficient to account for their complex reaction mechanism and application. Thus, the structural evolution of lithium-manganese-rich layered oxides at different temperatures during electrochemical cycling has been investigated thoroughly, and their structural stability has been designed. The results indicated structure conversion from the two structures into a core-shell structure with a single distorted-monoclinic LiTMO 2 structure core and disordered-spinel/rock salt structure shell, along with lattice oxygen extraction and lattice densification, transition- metal migration, and aggregation on the crystal surface. Here, the structural conversion behavior was found to be seriously temperature sensitive, accelerated with higher temperature, and can be effectively adjusted by structural design. This study clarifies the structural evolution mechanism of these lithium-rich layered oxides and opens the door to the design of similar high-energy materials with better cycle stability.

Authors:
ORCiD logo [1];  [2];  [3];  [1];  [1];  [4]; ORCiD logo [5];  [4];  [1]; ORCiD logo [6]; ORCiD logo [1]; ORCiD logo [3]; ORCiD logo [2]
  1. Beijing Univ. of Technology, Beijing (China)
  2. Univ. of Tokyo, Tokyo (Japan)
  3. Argonne National Laboratory (ANL), Lemont, IL (United States)
  4. Chinese Academy of Sciences (CAS), Beijing (China)
  5. Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, United States
  6. National Inst. of Advanced Industrial Science and Technology (AIST), Tsukuba (Japan)
Publication Date:
Research Org.:
Argonne National Laboratory (ANL), Lemont, IL (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1503590
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of the American Chemical Society
Additional Journal Information:
Journal Volume: 140; Journal Issue: 45; Journal ID: ISSN 0002-7863
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE; 25 ENERGY STORAGE

Citation Formats

Yu, Haijun, So, Yeong-Gi, Ren, Yang, Wu, Tianhao, Guo, Gencai, Xiao, Ruijuan, Lu, Jun, Li, Hong, Yang, Yubo, Zhou, Haoshen, Wang, Ruzhi, Amine, Khalil, and Ikuhara, Yuichi. Temperature-Sensitive Structure Evolution of Lithium–Manganese-Rich Layered Oxides for Lithium-Ion Batteries. United States: N. p., 2018. Web. doi:10.1021/jacs.8b07858.
Yu, Haijun, So, Yeong-Gi, Ren, Yang, Wu, Tianhao, Guo, Gencai, Xiao, Ruijuan, Lu, Jun, Li, Hong, Yang, Yubo, Zhou, Haoshen, Wang, Ruzhi, Amine, Khalil, & Ikuhara, Yuichi. Temperature-Sensitive Structure Evolution of Lithium–Manganese-Rich Layered Oxides for Lithium-Ion Batteries. United States. doi:10.1021/jacs.8b07858.
Yu, Haijun, So, Yeong-Gi, Ren, Yang, Wu, Tianhao, Guo, Gencai, Xiao, Ruijuan, Lu, Jun, Li, Hong, Yang, Yubo, Zhou, Haoshen, Wang, Ruzhi, Amine, Khalil, and Ikuhara, Yuichi. Mon . "Temperature-Sensitive Structure Evolution of Lithium–Manganese-Rich Layered Oxides for Lithium-Ion Batteries". United States. doi:10.1021/jacs.8b07858.
@article{osti_1503590,
title = {Temperature-Sensitive Structure Evolution of Lithium–Manganese-Rich Layered Oxides for Lithium-Ion Batteries},
author = {Yu, Haijun and So, Yeong-Gi and Ren, Yang and Wu, Tianhao and Guo, Gencai and Xiao, Ruijuan and Lu, Jun and Li, Hong and Yang, Yubo and Zhou, Haoshen and Wang, Ruzhi and Amine, Khalil and Ikuhara, Yuichi},
abstractNote = {Cathodes of lithium-rich layered oxides for high-energy Li-ion batteries in electrically powered vehicles are attracting considerable attention by the research community. Furthermore, current research is insufficient to account for their complex reaction mechanism and application. Thus, the structural evolution of lithium-manganese-rich layered oxides at different temperatures during electrochemical cycling has been investigated thoroughly, and their structural stability has been designed. The results indicated structure conversion from the two structures into a core-shell structure with a single distorted-monoclinic LiTMO2 structure core and disordered-spinel/rock salt structure shell, along with lattice oxygen extraction and lattice densification, transition- metal migration, and aggregation on the crystal surface. Here, the structural conversion behavior was found to be seriously temperature sensitive, accelerated with higher temperature, and can be effectively adjusted by structural design. This study clarifies the structural evolution mechanism of these lithium-rich layered oxides and opens the door to the design of similar high-energy materials with better cycle stability.},
doi = {10.1021/jacs.8b07858},
journal = {Journal of the American Chemical Society},
issn = {0002-7863},
number = 45,
volume = 140,
place = {United States},
year = {2018},
month = {10}
}

Journal Article:
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