1
|
Vásquez FA, Rosero-Navarro NC, Miura A, Jalem R, Goto Y, Nagao M, Tateyama Y, Tadanaga K, Calderón JA. Kinetic Control of the Li 0.9Mn 1.6Ni 0.4O 4 Spinel Structure with Enhanced Electrochemical Performance. ACS Appl Mater Interfaces 2021; 13:14056-14067. [PMID: 33723987 DOI: 10.1021/acsami.0c17886] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The development of more sustainable societies has become an urgent goal worldwide. Electrical batteries are currently seen as one of the most important energy storage technologies for the development of decarbonized societies. However, many lithium-ion battery manufacturers currently utilize cobalt, a toxic and hazardous mineral, in their batteries. Lithium-deficient manganese nickel oxide spinels are considered promising candidates owing to their high potential and environmental friendliness. Their electrochemical performance highly depends on their average and local structures, such as phase purities, lattice parameters, and cation sites. Thus, a synthesis protocol should be designed to control these structural parameters to improve their electrochemical performance. In this study, we controlled the average and local structures of Li0.9Mn1.6Ni0.4O4 spinels obtained by co-precipitation by optimizing their cooling rates. High-resolution techniques, including transmission electron microscopy, synchrotron X-ray diffraction, and Auger-composition analysis combined with density functional theory calculations, X-ray absorption spectroscopy, and electrochemical analysis, were used to understand the average and local structural variations and their effects on the electrochemical properties. As a result, the control of oxygen diffusion at different cooling rates can promote the rearrangement of the structure, resulting in a cation-disordered spinel with minimal variations in lattice parameters and composition. Excellent electrochemical properties were noted in the cation-disordered spinel with high crystallinity and a slightly oxygen-rich surface produced via optimized cooling rates.
Collapse
Affiliation(s)
- F A Vásquez
- CIDEMAT, Universidad de Antioquia, Street 70# 52-21, Medellín 050010, Colombia
| | - N C Rosero-Navarro
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - A Miura
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - R Jalem
- Center for Green Research on Energy and Environmental Materials (GREEN), National Institute for Materials Science (NIMS), Tsukuba, Ibaraki 305-0044, Japan
- Center for Materials Research By Information Integration (CMÎ2), Research and Services Division of Materials Data and Integrated System (MaDIS), NIMS, Tsukuba, Ibaraki 305-0044, Japan
- PRESTO, Japan Science and Technology Agency (JST), Saitama 333-0012, Japan
- Elements Strategy Initiative for Catalysts & Batteries, Kyoto University, Kyoto, Kyoto 615-8g245, Japan
| | - Y Goto
- Department of Physics, Tokyo Metropolitan University, Hachioji 192-0397, Japan
| | - M Nagao
- Center for Crystal Science and Technology, University of Yamanashi, Kofu 400-0021, Japan
| | - Y Tateyama
- Center for Green Research on Energy and Environmental Materials (GREEN), National Institute for Materials Science (NIMS), Tsukuba, Ibaraki 305-0044, Japan
- Center for Materials Research By Information Integration (CMÎ2), Research and Services Division of Materials Data and Integrated System (MaDIS), NIMS, Tsukuba, Ibaraki 305-0044, Japan
- Elements Strategy Initiative for Catalysts & Batteries, Kyoto University, Kyoto, Kyoto 615-8g245, Japan
| | - K Tadanaga
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - J A Calderón
- CIDEMAT, Universidad de Antioquia, Street 70# 52-21, Medellín 050010, Colombia
| |
Collapse
|