Versatile Fe2GeS4 for Li/Na–Fe2GeS4 battery cathodes and Li/Na-ion battery anodes

Ganesan, Vinoth; Nam, Ki‐Hun; Kim, Jae‐Hun; Park, Cheol‐Min

doi:10.1039/d2ta06471e

Cited by 5 publications

(1 citation statement)

References 59 publications

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“…7 and S14, S15†). The electric current of each redox peak enhanced with the improvement in the scan rate, and the pseudocapacitance contribution can be determined by a power function relationship between the peak current ( i ) and the scan speed ( v ) as follows: 52 i = av b log i = b log v + log a where a and b denote constant parameters. When the value of b is close to 0.5, the Li storage procedure is diffusion-controlled; in the case of b value tending to 1, the Li storage process is dominated by the capacitive mechanism.…”

Section: Resultsmentioning

confidence: 99%

MOF-derived N,S Co-doped carbon matrix-encapsulated Cu₂S nanoparticles as high-performance lithium-ion battery anodes: a joint theoretical and experimental study

Zhao

Shi

et al. 2023

J. Mater. Chem. A

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Section: Resultsmentioning

confidence: 99%

MOF-derived N,S Co-doped carbon matrix-encapsulated Cu₂S nanoparticles as high-performance lithium-ion battery anodes: a joint theoretical and experimental study

Zhao

Shi

et al. 2023

J. Mater. Chem. A

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Fe2GeS4/exfoliated graphite composite anodes with enhanced performance for SIBs

Wang,

Zhu,

Ding

et al. 2023

Ionics

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As a new type of negative electrode material for SIBs, Fe 2 GeS 4 is considered a highly promising negative electrode material for SIBs owing to its high theoretical capacity, fast Na + diffusion kinetics, and good thermal stability. In practical applications, it is crucial to synthesize the high-capacity/reversible nanostructured Fe 2 GeS 4 -based negative electrodes through an easily executable method. In this study, a two-step synthesis method to prepare nanostructured Fe 2 GeS 4 anchored on graphite (Fe 2 GeS 4 /G-15%) was employed: the commercial FeS, S, and Ge powders were mixed and heated, and then graphite was added for ball milling. X-ray photoelectron spectroscopy (XPS) and density functional theory (DFT) calculations revealed that there is a strong interaction between the nanostructured Fe 2 GeS 4 powder and the exfoliated graphite, forming a highly stable nanocomposite material, which is bene cial for improving the reversible charge-discharge performance of the material. When used as a negative electrode material for SIBs, the prepared Fe 2 GeS 4 /G-15% exhibited a capacity of 665.5 mAh g − 1 during the second cycle at 0.1 A g − 1 and could maintain a capacity of 519 mAh g − 1 even after the 60th cycle. Considering the simple synthesis process employed in this study, it provides a reference for the production of highperformance Fe 2 GeS 4 -based negative electrode materials for SIBs.

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Multi-type heterostructures: Rational design anode materials for alkali-ion batteries

Yin,

Zhang,

Wang

et al. 2023

Journal of Energy Storage

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Versatile Fe₂GeS₄ for Li/Na–Fe₂GeS₄ battery cathodes and Li/Na-ion battery anodes

Abstract: Metal chalcogenides are promising candidates for various energy storage applications. Herein, a ternary Fe2GeS4 compound was synthesized using a simple solid-state method and applied as versatile electrodes for rechargeable Li/Na–S...

Cited by 5 publications

References 59 publications

MOF-derived N,S Co-doped carbon matrix-encapsulated Cu₂S nanoparticles as high-performance lithium-ion battery anodes: a joint theoretical and experimental study

MOF-derived N,S Co-doped carbon matrix-encapsulated Cu₂S nanoparticles as high-performance lithium-ion battery anodes: a joint theoretical and experimental study

Fe2GeS4/exfoliated graphite composite anodes with enhanced performance for SIBs

Multi-type heterostructures: Rational design anode materials for alkali-ion batteries

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Versatile Fe2GeS4 for Li/Na–Fe2GeS4 battery cathodes and Li/Na-ion battery anodes

Abstract: Metal chalcogenides are promising candidates for various energy storage applications. Herein, a ternary Fe2GeS4 compound was synthesized using a simple solid-state method and applied as versatile electrodes for rechargeable Li/Na–S...

Cited by 5 publications

References 59 publications

MOF-derived N,S Co-doped carbon matrix-encapsulated Cu2S nanoparticles as high-performance lithium-ion battery anodes: a joint theoretical and experimental study

MOF-derived N,S Co-doped carbon matrix-encapsulated Cu2S nanoparticles as high-performance lithium-ion battery anodes: a joint theoretical and experimental study

Fe2GeS4/exfoliated graphite composite anodes with enhanced performance for SIBs

Multi-type heterostructures: Rational design anode materials for alkali-ion batteries

Contact Info

Product

Resources

About

Versatile Fe₂GeS₄ for Li/Na–Fe₂GeS₄ battery cathodes and Li/Na-ion battery anodes

MOF-derived N,S Co-doped carbon matrix-encapsulated Cu₂S nanoparticles as high-performance lithium-ion battery anodes: a joint theoretical and experimental study

MOF-derived N,S Co-doped carbon matrix-encapsulated Cu₂S nanoparticles as high-performance lithium-ion battery anodes: a joint theoretical and experimental study