Biomass-Derived Hard Carbon Materials for High-Performance Sodium-Ion Battery

Coatings, Journal Year: 2025, Volume and Issue: 15(2), P. 156 - 156

Published: Feb. 1, 2025

Using biomass-derived hard carbon materials as anode for sodium-ion batteries has facilitated resource recycling and brought significant economic benefits. However, the main obstacles to large-scale application of these are low Coulombic efficiency high irreversible capacity materials. This study used waste moso bamboo a source prepare pre-oxidize through stepped temperature sintering process. The introduction oxygen atoms into layers been shown increase spacing between layers, which facilitates insertion sodium-ions them. Moreover, presence oxygen-containing groups increases number edge vacancy defects in skeleton, thereby enhancing actual material. Studies have indicated that different pre-oxidation times varying impacts on electrochemical properties discarded raw material, optimal duration bamboo-based was determined be 4.5 h series comparative experiments. A high-performance material prepared via stepwise It exhibited specific 301.4 mAh·g−1 at 0.1 C first-cycle 87%.

Language: Английский

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Accelerated carbonization of waste tire via microwave heating: Carbon anode derived from waste tire for sodium-ion battery

Applied Surface Science, Journal Year: 2025, Volume and Issue: unknown, P. 162577 - 162577

Published: Feb. 1, 2025

Language: Английский

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Porous Hard Carbon Derived from Indian Trumpet Flower Seeds as a High-Capacity Sodium-Ion Battery Anode Material

Langmuir, Journal Year: 2025, Volume and Issue: unknown

Published: May 5, 2025

Sodium-ion batteries (SIBs) have garnered significant attention as a promising alternative to lithium-ion (LIBs) owing their lower cost and abundant availability of natural resources. Hard carbon (HC) is broadly recognized the most favorable anode material for SIBs because its superior Na-storage capabilities economic viability. However, challenges persist, such limited electrical conductivity, poor cycling stability, low initial Coulombic efficiency (ICE). In this work, utilizing Indian trumpet flower seeds (ITSs) precursor, we successfully developed an innovative HC anode, which delivers high reversible capacity 380 mAh g-1, exceptional rate capability with 65% retention at 1500 mA ICE 89.18%. addition, it exhibits noteworthy maintaining 98% stable after 400 cycles. These improved performances are ascribed expanded layer spacing increased formation closed mesopores, achieved through simple efficient synthetic approach incorporating acid treatment P-induced pore-forming. This work presents precursor strategy producing advanced anodes SIBs.

Language: Английский

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High-performance pitch-based hard carbon for sodium-ion batteries: Introducing oxygen functional groups and regulating closed pores by adjusting pre-oxidation rate

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 108, P. 114995 - 114995

Published: Dec. 21, 2024

Language: Английский

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