Mg-Doped Li<sub>2</sub>FeTiO<sub>4</sub> as a High-Performance Cathode Material Enabling Fast and Stable Li-ion Storage
As a multi-electron system material, the excellent capacity and environmentally benign properties of Li<sub>2</sub>FeTiO<sub>4</sub> cathodes make them attractive for lithium-ion batteries. Nevertheless, their electrochemical performance has been hampered by poor conductivity...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-03-01
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| Series: | Inorganics |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2304-6740/13/3/76 |
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| Summary: | As a multi-electron system material, the excellent capacity and environmentally benign properties of Li<sub>2</sub>FeTiO<sub>4</sub> cathodes make them attractive for lithium-ion batteries. Nevertheless, their electrochemical performance has been hampered by poor conductivity and limited ion transport. In this work, the synthesis of Mg-doped Li<sub>2</sub>Mg<sub>x</sub>Fe<sub>1−x</sub>TiO<sub>4</sub> (LiFT-Mgx, x = 0, 0.01, 0.03, 0.05) cathode materials was successfully achieved. We observed significant gains in interlayer spacing, ionic conductivity, and kinetics. Hence, the sample of the LiFT-Mg0.03 cathode demonstrated charming initial capacity (112.1 mAh g<sup>−1</sup>, 0.05 C), stability (85.0%, 30 cycles), and rate capability (96.5 mAh g<sup>−1</sup>, 85.9%). This research provided precious insights into lithium storage with exceptional long-term stability and has the potential to drive the development of next-generation energy storage technologies. |
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| ISSN: | 2304-6740 |