Thermally expanded graphite: a promising anode electrode in the current and next-generation LIBs

Hamidi, Sarmin; Askari, Kasra; Salimi, Pejman

doi:10.1039/d3nj02241b

New J. Chem.

2023

DOI: 10.1039/d3nj02241b

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Thermally expanded graphite: a promising anode electrode in the current and next-generation LIBs

Sarmin Hamidi

Kasra Askari

Pejman Salimi

Abstract: The interesting properties of thermally expanded graphite make it an ideal candidate for application as the anode electrode in conventional and next generation lithium-ion batteries.

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Cited by 4 publications

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Lithium‐Metal‐Free Sulfur Batteries with Biochar and Steam‐Activated Biochar‐Based Anodes from Spent Common Ivy

Salimi,

Vercruysse,

Chauque

et al. 2024

Energy & Environ Materials

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Lithium‐sulfur batteries are emerging as sustainable replacements for current lithium‐ion batteries. The commercial viability of this novel type of battery is still under debate due to the extensive use of highly reactive lithium‐metal anodes and the complex electrochemistry of the sulfur cathode. In this research, a novel sulfur‐based battery has been proposed that eliminates the need for metallic lithium anodes and other critical raw materials like cobalt and graphite, replacing them with biomass‐derived materials. This approach presents numerous benefits, encompassing ample availability, cost‐effectiveness, safety, and environmental friendliness. In particular, two types of biochar‐based anode electrodes (non‐activated and activated biochar) derived from spent common ivy have been investigated as alternatives to metallic lithium. We compared their structural and electrochemical properties, both of which exhibited good compatibility with the typical electrolytes used in sulfur batteries. Surprisingly, while steam activation results in an increased specific surface area, the non‐activated ivy biochar demonstrates better performance than the activated biochar, achieving a stable capacity of 400 mA h g−1 at 0.1 A g−1 and a long lifespan (>400 cycles at 0.5 A g−1). Our results demonstrate that the presence of heteroatoms, such as oxygen and nitrogen positively affects the capacity and cycling performance of the electrodes. This led to increased d‐spacing in the graphitic layer, a strong interaction with the solid electrolyte interphase layer, and improved ion transportation. Finally, the non‐activated biochar was successfully coupled with a sulfur cathode to fabricate lithium‐metal‐free sulfur batteries, delivering a specific energy density of ~600 Wh kg−1.

show abstract

Lithium‐Metal‐Free Sulfur Batteries with Biochar and Steam‐Activated Biochar‐Based Anodes from Spent Common Ivy

Salimi,

Vercruysse,

Chauque

et al. 2024

Energy & Environ Materials

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show abstract

Soft carbon filled in expanded graphite layer pores for superior fast-charging lithium-ion batteries

Quan,

Lu,

Wang

et al. 2024

Carbon

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Natural graphite anode for advanced lithium-ion Batteries: Challenges, Progress, and Perspectives

Chen,

Liu,

Feng

et al. 2025

Chemical Engineering Journal

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Thermally expanded graphite: a promising anode electrode in the current and next-generation LIBs

Abstract: The interesting properties of thermally expanded graphite make it an ideal candidate for application as the anode electrode in conventional and next generation lithium-ion batteries.

Cited by 4 publications

References 20 publications

Lithium‐Metal‐Free Sulfur Batteries with Biochar and Steam‐Activated Biochar‐Based Anodes from Spent Common Ivy

Lithium‐Metal‐Free Sulfur Batteries with Biochar and Steam‐Activated Biochar‐Based Anodes from Spent Common Ivy

Soft carbon filled in expanded graphite layer pores for superior fast-charging lithium-ion batteries

Natural graphite anode for advanced lithium-ion Batteries: Challenges, Progress, and Perspectives

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