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Improving Energy Density and Structural Stability of Manganese Oxide Cathodes for Na-Ion Batteries by Structural Lithium Substitution
Abstract
We report excellent cycling performance for P2–Na 0.6 Li 0.2 Mn 0.8 O 2, an auspicious cathode material for sodium-ion batteries. This material, which contains mainly Mn 4+, exhibits a long voltage plateau on the first charge, similar to that of high-capacity lithium and manganese-rich metal oxides. Electrochemical measurements, X-ray diffraction, and elemental analysis of the cycled electrodes suggest an activation process that includes the extraction of lithium from the material. The “activated” material delivers a stable, high specific capacity up to ∼190 mAh/g after 100 cycles in the voltage window between 4.6–2.0 V versus Na/Na + . DFT calculations locate the energy states of oxygen atoms near the Fermi level, suggesting the possible contribution of oxide ions to the redox process. The addition of Li to the lattice improves structural stability compared to many previously reported sodiated transition-metal oxide electrode materials, by inhibiting the detrimental structural transformation ubiquitously observed with sodium manganese oxides during cycling. This research demonstrates the prospect of intercalation materials for Na-ion battery technology that are active based on both cationic and anionic redox moieties.
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Shannon, R. D. (1976) · Acta Crystallographica Section A · doi:10.1107/s0567739476001551 · Cited by 66,145
Cited by
From Lithium‐Ion to Sodium‐Ion Batteries: Advantages, Challenges, and Surprises
Nayak, P. K., Yang, L., Brehm, W., & Adelhelm, P. (2018) · Angewandte Chemie International Edition · doi:10.1002/anie.201703772 · Cited by 2,674
Self-citationSodium transition metal oxides: the preferred cathode choice for future sodium-ion batteries?
Liu, Q., Hu, Z., Li, W., Zou, C., Jin, H., Wang, S., Chou, S., & Dou, S.-X. (2021) · Energy & Environmental Science · doi:10.1039/d0ee02997a · Cited by 468
Recent Progress of Layered Transition Metal Oxide Cathodes for Sodium‐Ion Batteries
Liu, Q., Hu, Z., Chen, M., Zou, C., Jin, H., Wang, S., Chou, S., & Dou, S. (2019) · Small · doi:10.1002/smll.201805381 · Cited by 447
Zuo, W., Luo, M., Liu, X., Wu, J., Liu, H., Li, J., Winter, M., Fu, R., Yang, W., & Yang, Y. (2020) · Energy & Environmental Science · doi:10.1039/d0ee01694b · Cited by 429
Chen, M., Liu, Q., Wang, S., Wang, E., Guo, X., & Chou, S. (2019) · Advanced Energy Materials · doi:10.1002/aenm.201803609 · Cited by 341
Metadata
- Authors
- de la Llave, E., Talaie, E., Levi, E., Nayak, P. K., Dixit, M., Rao, P. T., Hartmann, P., Chesneau, F., Major, D. T., Greenstein, M., Aurbach, D., & Nazar, L. F.
- Venue
- Chemistry of Materials
- Publisher
- American Chemical Society (ACS)
- Published
- 2016-12-05
- Volume
- 28
- Issue
- 24
- Pages
- 9064-9076
- ISSN
- 0897-4756 (ISSN-L)
- 1520-5002
- OpenAlex
- W2546844121
- Cited by
- 279
- References
- 1
- FWCI
- 9.91
- Type
- journal article
- Language
- en
- Open access
- closed
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- The paper
- de la Llave, E., Talaie, E., Levi, E., Nayak, P. K., Dixit, M., Rao, P. T., Hartmann, P., Chesneau, F., Major, D. T., Greenstein, M., Aurbach, D., & Nazar, L. F. (2016). Improving Energy Density and Structural Stability of Manganese Oxide Cathodes for Na-Ion Batteries by Structural Lithium Substitution. Chemistry of Materials. https://doi.org/10.1021/acs.chemmater.6b04078
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