Rapidly convergent cluster expansion and application to lithium ion battery materials
Journal Article
·
· Physical Review. B
- Univ. of Alabama, Huntsville, AL (United States). Dept. of Mechanical and Aerospace Engineering
- Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division
- Argonne National Lab. (ANL), Argonne, IL (United States). Chemical Sciences and Engineering Division
The convergence of a cluster expansion for lithium transition-metal (TM) oxides is improved by explicit treatment of TM magnetic moments. The approach is applied to layered LiCoyNi1-yO2 (NC). The ground state and low-lying excited state structures are identified, and the distribution of TM ions and magnetic moment in those structures is investigated to explain the origin of Ni-antisite ions and Jahn-Teller distortion. The developed model also reveals the mechanisms governing the atomic arrangement of NC, including in-plane Co-Co vs Co-Ni competition, magnetic frustration vs disproportionation competition, and cationic interactions spanning adjacent layers.
- Research Organization:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC); Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Transportation Office. Vehicle Technologies Office. Battery Materials Research (BMR) Program; USDOE
- Grant/Contract Number:
- AC02-05CH11231; AC02-06CH11357
- OSTI ID:
- 1544402
- Alternate ID(s):
- OSTI ID: 1344596; OSTI ID: 1872942
- Journal Information:
- Physical Review. B, Vol. 95, Issue 8; ISSN 2469-9950
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 6 works
Citation information provided by
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