High entropy oxides (HEOs) are attractive as a negative electrode material for lithium-ion batteries (LIBs), because of the high specific capacities and cycling stabilities. Moreover, they offer a wide range of compositional variation to reach the desired electrochemical performances. In this study, we synthesized the Co5(MgNiZnLi)95O and Co35(MgNiZnLi)65O high entropy oxides using conventional solid state reaction technique and examined their electrochemical properties in lithium-ion cells as anode material. The structural properties of as-synthesized high entropy oxides were investigated using X-ray diffraction (XRD) technique, which showed that all the oxides have single-phase rock-salt structure. The increase in the Co content from 5% to 35%, the high entropy oxide based anodes resulted in improved discharge capacity due to the different oxidation states in Co ions. This work indicates that the compositional and elemental valences are very crucial to design and achieve novel high performance high entropy oxide based anode materials for lithium-ion batteries.
Lökçü, E., Toparli, Ç., & Anik, M. (2020). Electrochemical performance of (MgCoNiZn)1-xLixO high-entropy oxides in lithium-ion batteries. ACS Applied Materials & Interfaces, 12, 23860-23866.
Lu, J., Chen, Z., Pan, F., Cui, Y., & Amine, K. (2018). High-performance anode materials for rechargeable lithium-ion batteries. Electrochemical Energy Reviews, 1, 35−53.
Puthusseri, D., Wahid, M., & Ogale, S. (2018). Conversion-type anode materials for alkali-ion batteries: State of the art and possible research directions. ACS Omega, 3, 4591−4601.
Rost, C. M., Sachet, E., Borman, T., Moballegh, A., Dickey, E. C., Hou, D., Jones, J. L., Curtarolo, S., & Maria, J.-P. (2015). Entropy-stabilized oxides. Nature Communications, 6, 1−8.
Sarkar, A., Velasco, L., Wang, D., Wang, Q., Talasila, G., de Biasi, L., Kübel, C., Brezesinski, T., Bhattacharya, S. S., Hahn, H., & Breitung, B. (2018). High entropy oxides for reversible energy storage. Nature Communications, 9(3400), 1-9.
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, 777, 767−774.
Yu, S.-H., Feng, X., Zhang, N., Seok, J., & Abruña, H. D. (2018). Understanding conversion-type electrodes for lithium rechargeable batteries. Accounts of Chemical Research, 51, 273−281.
Yuan, C., Wu, H. B., Xie, Y.;, & Lou, X. W. D. (2014). Mixed transition- metal oxides: Design, synthesis, and energy-related applications. Angewandte Chemie International Edition, 53, 1488−1504.
Lökçü, E., Toparli, Ç., & Anik, M. (2020). Electrochemical performance of (MgCoNiZn)1-xLixO high-entropy oxides in lithium-ion batteries. ACS Applied Materials & Interfaces, 12, 23860-23866.
Lu, J., Chen, Z., Pan, F., Cui, Y., & Amine, K. (2018). High-performance anode materials for rechargeable lithium-ion batteries. Electrochemical Energy Reviews, 1, 35−53.
Puthusseri, D., Wahid, M., & Ogale, S. (2018). Conversion-type anode materials for alkali-ion batteries: State of the art and possible research directions. ACS Omega, 3, 4591−4601.
Rost, C. M., Sachet, E., Borman, T., Moballegh, A., Dickey, E. C., Hou, D., Jones, J. L., Curtarolo, S., & Maria, J.-P. (2015). Entropy-stabilized oxides. Nature Communications, 6, 1−8.
Sarkar, A., Velasco, L., Wang, D., Wang, Q., Talasila, G., de Biasi, L., Kübel, C., Brezesinski, T., Bhattacharya, S. S., Hahn, H., & Breitung, B. (2018). High entropy oxides for reversible energy storage. Nature Communications, 9(3400), 1-9.
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, 777, 767−774.
Yu, S.-H., Feng, X., Zhang, N., Seok, J., & Abruña, H. D. (2018). Understanding conversion-type electrodes for lithium rechargeable batteries. Accounts of Chemical Research, 51, 273−281.
Yuan, C., Wu, H. B., Xie, Y.;, & Lou, X. W. D. (2014). Mixed transition- metal oxides: Design, synthesis, and energy-related applications. Angewandte Chemie International Edition, 53, 1488−1504.
There are 8 citations in total.
Details
Primary Language
English
Subjects
Engineering
Journal Section
Articles
Authors
Ersu Lokcu
Türkiye
Resat Can Ozden
ESKISEHIR OSMANGAZI UNIVERSITYTürkiye
Mustafa Anık
ESKISEHIR OSMANGAZI UNIVERSITYTürkiye
Lokcu, E., Ozden, R. C., & Anık, M. (2020). Effect of Co Content on the Electrochemical Properties of (MgCoNiZnLi)O Based High Entropy Oxides for Li-Ion Batteries. The Eurasia Proceedings of Science Technology Engineering and Mathematics, 11, 29-32.