Effect of Synthesis Temperature on Structure and Electrochemical Performance of Spinel-Layered Li 1.33 MnTiO 4 +z in Li-Ion Batteries

Ngoc Hung Vu, Dao Van-Duong, Ha Tran Huu and Won Bin Im
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Ngoc Hung Vu: Falcuty of Biotechnology, Chemistry and Environmental Engineering, Phenikaa University, Hanoi 10000, Vietnam
Dao Van-Duong: Falcuty of Biotechnology, Chemistry and Environmental Engineering, Phenikaa University, Hanoi 10000, Vietnam
Ha Tran Huu: Division of Materials Science and Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Korea
Won Bin Im: Division of Materials Science and Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Korea

Energies, 2020, vol. 13, issue 11, 1-11

Abstract: Herein, the spinel-layered cathode material Li 1.33 MnTiO 4+ z (0.8LiMnTiO 4 •0.2Li 2 Mn 0.5 Ti 0.5 O 3 ) is investigated for the purpose of developing a high-capacity, low-cost, and environmentally friendly cathode for Li-ion batteries. Sol-gel synthesis is conducted and the relationships between synthesis temperature, structure, and electrochemical performance of the cathodes are studied. The effects of size and purity on the capacities of these cathodes are discussed. The samples fired at 500 and 600 °C contain an impurity phase of TiO 2 , thus delivering capacities of 208 and 210 mAh g −1 at C/10, respectively. The sample fired at 700 °C without the impurity phase of TiO 2 shows a high capacity of 222 mAh g −1 at C/10 and capacity retention of 90.5% after 100 cycles at 1C.

Keywords: spinel-layered; LiMnTiO 4; sol–gel; cathode; Li-ion batteries (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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