Preparation and properties of lithium titanate anode materials with different titanium sources

Jiang Xinyu; Ma Guangqiang; Zhu Qinmei; Tian Congxue

doi:10.7513/j.issn.1004-7638.2023.04.011

Volume 44 Issue 4

Aug. 2023

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Jiang Xinyu, Ma Guangqiang, Zhu Qinmei, Tian Congxue. Preparation and properties of lithium titanate anode materials with different titanium sources[J]. IRON STEEL VANADIUM TITANIUM, 2023, 44(4): 73-77. doi: 10.7513/j.issn.1004-7638.2023.04.011

Citation:

Jiang Xinyu, Ma Guangqiang, Zhu Qinmei, Tian Congxue. Preparation and properties of lithium titanate anode materials with different titanium sources[J]. IRON STEEL VANADIUM TITANIUM, 2023, 44(4): 73-77. doi: 10.7513/j.issn.1004-7638.2023.04.011

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Preparation and properties of lithium titanate anode materials with different titanium sources

doi: 10.7513/j.issn.1004-7638.2023.04.011

School of Biological and Chemical Engineering, Panzhihua University, Panzhihua 617000, Sichuan, China

Received Date: 2022-08-26
Publish Date: 2023-08-30

Abstract

Abstract

Spherical Li₄Ti₅O₁₂ anode materials were prepared by high temperature solid phase method, and the effects of different titanium sources on the properties of Li₄Ti₅O₁₂ anode materials were investigated. The structure and morphology of the prepared materials were characterized by XRD and SEM, and the synthesized materials were tested by electrochemical method. The results show that the discharge specific capacities of t-LTO, h-LTO and f-LTO prepared with nano TiO₂(P40), industrial H₂TiO₃ and industrial H₂TiO₃ containing iron are 170.0, 156.3 and 150.7 mAh/g at lower charge/discharge rate of 0.2 C, respectively. And the discharge specific capacities at the higher rate of 5 C are 91.9, 93.0 and 26.7 mAh/g, respectively. After 100 cycles of charging and discharging at 1 C, the capacity retention rates are 97.4%, 97.3% and 94.6%, respectively. Li₄Ti₅O₁₂ prepared with nano TiO₂ and industrial H₂TiO₃ has good electrochemical performance, so relatively pure industrial H₂TiO₃ can be used as a substitute for expensive TiO₂ to prepare Li₄Ti₅O₁₂ anode materials.
- lithium ion battery,
- anode materials,
- Li₄Ti₅O₁₂,
- high temperature solid phase method,
- titanium sources

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References(14)

References

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