High Li-storage performances of LiMnxFe1-xPO4/C (x = 0, 0.05, 0.1 and 0.2) cathodes derived from spent Li foil, expired manganese gluconate and rust

Hou, Hongying; Ye, Meng; Lan, Jian; Yu, Xiaohua; Rong, Ju; Jia, Yanpeng; Wang, Yixuan; Liu, Xianxi

doi:10.1016/j.est.2023.110176

Journal of Energy Storage

2024

DOI: 10.1016/j.est.2023.110176

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High Li-storage performances of LiMnxFe1-xPO4/C (x = 0, 0.05, 0.1 and 0.2) cathodes derived from spent Li foil, expired manganese gluconate and rust

Hongying Hou,

Meng Ye,

Jian Lan

et al.

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“…The slopes for LFMP/C-0%Ti, LFMP/C-1%Ti, LFMP/C-2%Ti, LFMP/C-3%Ti, and LFMP/C-4%Ti before cycling were 53.06, 62.72, 77.51, 82.38, and 153.02, respectively. According to eqs 1 and 2,53 this indicates that the LFMP/C-3%Ti cathode material exhibits an excellent lithium-ion diffusion rate. Postcycling fitting of Z′ and ω −1/2 in the low-frequency domain for LFMP/C-0%Ti and LFMP/C-3%Ti is presented in Figure5d, where the σ for LFMP/C-0% Ti increased to 184.09, while that for LFMP/C-3%Ti was only 88.44.…”

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confidence: 91%

Contribution of Ti-Doping to the Cyclic Stability of LiFe_0.6Mn_0.4PO₄/C

Peng,

Li,

You

et al. 2024

Ind. Eng. Chem. Res.

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Li(Fe 0.6 Mn 0.4 ) 1−x Ti x PO 4 /C cathode materials, with x values of 0, 0.01, 0.02, 0.03, and 0.04, were fabricated through a dual-stage synthesis process, incorporating both coprecipitation and high-temperature solid-phase techniques. The composition, microstructure, and surface morphology of these materials were thoroughly characterized using a suite of analytical techniques. These analyses confirmed the successful doping of Ti ions into the olivine lattice, resulting in a decrease in unit cell volume and the formation of an amorphous carbon layer on the particles' surfaces, which also improved particle dispersion. The electrochemical performance of the Li(Fe 0.6 Mn 0.4 ) 1−x Ti x PO 4 /C samples was assessed using techniques including constant current charge−discharge testing, cyclic voltammetry, and electrochemical impedance spectroscopy. The findings showed that Ti-doping markedly diminishes potential polarization in these materials and the strong Ti−O coordination suppresses the Jahn−Teller effect of Mn 3+ , effectively enhancing the stability and lithium-ion diffusion rate of the material. Additionally, density functional theory (DFT) calculations were conducted to assess the impact of Ti-doping on LFMP. The findings reveal that Ti-doping reduces the bandgap of the material and increases the bond length of Li−O, thereby further confirming that Ti-doping can enhance electronic conductivity. Among them, the Li(Fe 0.6 Mn 0.4 ) 1−x Ti x PO 4 /C-3%Ti cathode material exhibited the best electrochemical performance. The optimized sample demonstrated a specific discharge capacity of 163.53 mAh•g −1 at 0.1C, accompanied by an initial coulombic efficiency of 93.18%. At 1C, it provided a capacity of 140.59 mAh•g −1 , sustaining a capacity retention of 93.58% after 500 cycles, and delivered a discharge capacity of 94.08 mAh•g −1 at 5C.

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confidence: 91%

Contribution of Ti-Doping to the Cyclic Stability of LiFe_0.6Mn_0.4PO₄/C

Peng,

Li,

You

et al. 2024

Ind. Eng. Chem. Res.

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Ternary-metal-sulfide 2MnS/Cu2S/xZnS/C (x = 0, 0.5, 1, 2, 3) electrodes for high performance supercapacitors

Ye,

Hou,

Liu

et al. 2025

Journal of Molecular Structure

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Building continuous Li-ion transport channels from cathode to anode in solid-state lithium-metal batteries

Liu,

Hou,

Wang

et al. 2024

Inorg. Chem. Front.

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High Li-storage performances of LiMnxFe1-xPO4/C (x = 0, 0.05, 0.1 and 0.2) cathodes derived from spent Li foil, expired manganese gluconate and rust

Cited by 3 publications

References 34 publications

Contribution of Ti-Doping to the Cyclic Stability of LiFe_0.6Mn_0.4PO₄/C

Contribution of Ti-Doping to the Cyclic Stability of LiFe_0.6Mn_0.4PO₄/C

Ternary-metal-sulfide 2MnS/Cu2S/xZnS/C (x = 0, 0.5, 1, 2, 3) electrodes for high performance supercapacitors

Building continuous Li-ion transport channels from cathode to anode in solid-state lithium-metal batteries

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High Li-storage performances of LiMnxFe1-xPO4/C (x = 0, 0.05, 0.1 and 0.2) cathodes derived from spent Li foil, expired manganese gluconate and rust

Cited by 3 publications

References 34 publications

Contribution of Ti-Doping to the Cyclic Stability of LiFe0.6Mn0.4PO4/C

Contribution of Ti-Doping to the Cyclic Stability of LiFe0.6Mn0.4PO4/C

Ternary-metal-sulfide 2MnS/Cu2S/xZnS/C (x = 0, 0.5, 1, 2, 3) electrodes for high performance supercapacitors

Building continuous Li-ion transport channels from cathode to anode in solid-state lithium-metal batteries

Contact Info

Product

Resources

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Contribution of Ti-Doping to the Cyclic Stability of LiFe_0.6Mn_0.4PO₄/C

Contribution of Ti-Doping to the Cyclic Stability of LiFe_0.6Mn_0.4PO₄/C