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A high entropy oxide (Mg0.2Co0.2Ni0.2Cu0.2Zn0.2O) with superior lithium storage performance
Abstract
Abstract Here, a high entropy oxide (HEO), Mg0.2Co0.2Ni0.2Cu0.2Zn0.2O, was explored as an anode material for lithium ion batteries. The HEO anode provides a high initial discharge specific capacity of about 1585 mAh g−1 and exhibits superior cycling stability. A reversible capacity of 920 mAh g−1 was achieved at 100 mA g−1 after 300 cycles. Ex situ scanning electron microscopy (SEM) and selected-area electron diffraction (SAED) revealed that the surface morphology and microstructure of the HEO anodes were still stable even after long term cycling. The well-mixed cations together with an inactive material (MgO, formed after the initial discharge process) in the HEO anodes result in a remarkable cycling, rate performance and an applicable reversible capacity with an average voltage of ∼0.85 V. This work may provide a convenient method for obtaining component-controlled oxide nanostructured materials with high electrochemical performance.
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Citations
Cited by
Oses, C., Toher, C., & Curtarolo, S. (2020) · Nature Reviews Materials · doi:10.1038/s41578-019-0170-8 · Cited by 2,081
High‐Entropy Oxides: Fundamental Aspects and Electrochemical Properties
Sarkar, A., Wang, Q., Schiele, A., Chellali, M. R., Bhattacharya, S. S., Wang, D., Brezesinski, T., Hahn, H., Velasco, L., & Breitung, B. (2019) · Advanced Materials · doi:10.1002/adma.201806236 · Cited by 1,234
High-entropy energy materials: challenges and new opportunities
Ma, Y., Ma, Y., Wang, Q., Schweidler, S., Botros, M., Fu, T., Hahn, H., Brezesinski, T., & Breitung, B. (2021) · Energy & Environmental Science · doi:10.1039/d1ee00505g · Cited by 963
Recent progress of high-entropy materials for energy storage and conversion
Amiri, A., & Shahbazian-Yassar, R. (2021) · Journal of Materials Chemistry A · doi:10.1039/d0ta09578h · Cited by 592
Multi-anionic and -cationic compounds: new high entropy materials for advanced Li-ion batteries
Wang, Q., Sarkar, A., Wang, D., Velasco, L., Azmi, R., Bhattacharya, S. S., Bergfeldt, T., Düvel, A., Heitjans, P., Brezesinski, T., et al. (2019) · Energy & Environmental Science · doi:10.1039/c9ee00368a · Cited by 447
Metadata
- Authors
- Qiu, N., Chen, H., Yang, Z., Sun, S., Wang, Y., & Cui, Y.
- Venue
- Journal of Alloys and Compounds
- Publisher
- Elsevier BV
- Published
- 2019-03
- Volume
- 777
- Pages
- 767-774
- ISSN
- 0925-8388 (ISSN-L)
- OpenAlex
- W2899631371
- Cited by
- 370
- References
- 0
- FWCI
- 8.66
- Type
- journal article
- Language
- en
- Open access
- closed
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- Qiu, N., Chen, H., Yang, Z., Sun, S., Wang, Y., & Cui, Y. (2019). A high entropy oxide (Mg0.2Co0.2Ni0.2Cu0.2Zn0.2O) with superior lithium storage performance. Journal of Alloys and Compounds. https://doi.org/10.1016/j.jallcom.2018.11.049
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