Conference proceeding
Effect of Manganese Oxide Crystal Tunnel Size on Li-ion and Na-ion Battery Performance
LOW-DIMENSIONAL MATERIALS AND DEVICES 2016, v 9924, pp 992406-992406-8
01 Jan 2016
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
The relationship between the volume available within the crystal structure of a material and the size of charge-carrying ions is investigated by evaluating the performance of two manganese oxides with controlled variations in crystal tunnels, alpha-MnO2 (K0.11MnO2) and todorokite MnO2 (Mg0.20MnO2), in Li-ion and Na-ion batteries. These materials consist of MnO6 octahedra building blocks arranged into square tunnel configurations around different stabilizing cations, with alpha-MnO2 possessing structural tunnels of 4.6 angstrom by 4.6 angstrom and todorokite MnO2 possessing tunnels of 6.9 angstrom by 6.9 angstrom. Electrochemical testing of these materials revealed that despite its smaller crystal tunnel size, alpha-MnO2 exhibits higher capacities in both battery systems. However, at higher current rates it was found that todorokite MnO2 maintained a greater amount of its initial capacity. These findings provide valuable insight into the relationship between crystal structure composition and charge-carrying ion size to develop more efficient intercalation cathodes for Li-ion and Na-ion batteries.
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Details
- Title
- Effect of Manganese Oxide Crystal Tunnel Size on Li-ion and Na-ion Battery Performance
- Creators
- Bryan W. Byles - Drexel UniversityEkaterina Pomerantseva - Drexel University
- Contributors
- N P Kobayashi (Editor)A A Talin (Editor)M S Islam (Editor)A V Davydov (Editor)
- Publication Details
- LOW-DIMENSIONAL MATERIALS AND DEVICES 2016, v 9924, pp 992406-992406-8
- Series
- Proceedings of SPIE
- Publisher
- Spie-Int Soc Optical Engineering
- Number of pages
- 8
- Resource Type
- Conference proceeding
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000390027500003
- Scopus ID
- 2-s2.0-85006998273
- Other Identifier
- 991019168322404721
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Engineering, Electrical & Electronic
- Optics
- Physics, Condensed Matter