TY  - JOUR
T1  - Effect of Mg Content on the Electrochemical Properties of (MgCoNiZnLi)O Based High Entropy Oxides for Li-Ion Batteries
AU  - Lokcu, Ersu
AU  - Ozden, Resat Can
AU  - Anık, Mustafa
PY  - 2020
DA  - December
JF  - The Eurasia Proceedings of Science Technology Engineering and Mathematics
JO  - EPSTEM
PB  - ISRES Publishing
WT  - DergiPark
SN  - 2602-3199
SP  - 53
EP  - 56
VL  - 11
LA  - en
AB  - High entropy oxides (HEOs) are attractive as a negative electrode material for lithium-ion batteries 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 Mgx(CoNiZnLi)100-xO 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 Mg5(CoNiZnLi)95O and Mg35(CoNiZnLi)65O HEOs were investigated using X-ray diffraction (XRD) technique, which showed that all the oxides have single-phase rock-salt structure. When tested as anode material in lithium-ion cell, Mg5(CoNiZnLi)95O anode exhibits higher initial discharge capacity than Mg35(CoNiZnLi)65O electrode. However, the Mg35(CoNiZnLi)65O electrode shows the higher cycling stability than Mg5(CoNiZnLi)95O electrode at the further cycle period. This work offers an approach to control the electrochemical properties of HEO based anodes by tuning active and inactive cation contents in the structure.
KW  - Conversion type anode
KW  - Li-ion battery
KW  - High entropy oxide
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UR  - https://dergipark.org.tr/en/pub/epstem/article/836327
L1  - https://dergipark.org.tr/en/download/article-file/1432632
ER  -