Synthesis and electrochemical properties of LiNi0.4Mn1.5Cr0.1O4 and Li4Ti5O12 |
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| Authors: | G. Q. Liu L. Wen G. Y. Liu H. Z. Luo B. Y. Ma Q. Y. Wu Y. W. Tian |
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| Affiliation: | (1) School of Material and Metallurgy, Northeastern University, Shenyang, 110004, China;(2) Chinese Academy of Sciences, Institute of Metal Research, Shenyang National Laboratory for Materials Science, Shenyang, 110016, China |
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| Abstract: | Spinel compound LiNi0.4Mn1.5Cr0.1O4 (LNMCO) and Li4Ti5O12 (LTO) were synthesized by the sol-gel method and the solid-state method, respectively. The particle sizes of the products LiNi0.4Mn1.5Cr0.1O4 and Li4Ti5O12 were 0.5 to 2 um and 0.5 to 0.8 um, respectively. All samples exhibited excellent electrochemical properties. A LiNi0.4Mn1.5Cr0.1O4/Li4Ti5O12 (LNMCO/LTO) cell was fabricated and was demonstrated to exhibit good electrochemical properties at the high current rate of 1 C. When the specific capacity was determined based on the mass of the LNMCO cathode, the LNMCO/LTO cell delivered 125 mAh g−1 at 1 C and 77 mAh g−1 at 5 C. The capacity retentions after 30 cycles were 94.4 % and 83.1 %, respectively. |
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