High-performance lithium-ion batteries with different hollow-degree Fe3O4@C hollow nanostructures

Wei, Quan-ya; Zhu, Hua; Yu, Shijin; Guo-qian, XU; Yin, Jian-hong; Tong, Jiahao; Chen, Tianrui; He, Xuannan; Guo, Pingchun; Jiang, He-dong; Li, Jiake; Wang, Yanxiang

doi:10.1016/j.apsusc.2022.155093

Cited by 13 publications

(4 citation statements)

References 31 publications

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“…In the first CV cycle, a distinct redox pair at 0.37/1.92 V represented Li + uptake and SEI layer formation via iron oxide conversion (Fe 3 O 4 + 8Li + + 8e – → 3Fe 0 + 4Li 2 O, 924 mAh g –1 ) (Figures a and S3a,b). − After irreversible and excessive electrolyte decomposition in the early cycle, the cathodic peak shifted to 0.55 V in the next cycle. The new cathodic–anodic couple at 0.55/2.06 V is still related to the conversion storage mechanism of iron oxide with increased polarization after the interfacial stabilization. ,, The CV scan is consistent with the GCD profile in Figure b, in which a lower voltage plateau can be found in the first discharge cycle due to the SEI formation, followed by consistent redox potentials from the 2nd to the 10th cycle.…”

Section: Resultsmentioning

confidence: 99%

Double-Shelled Fe–Fe₃C Nanoparticles Embedded on a Porous Carbon Framework for Superior Lithium-Ion Half/Full Batteries

Devina,

Subiyanto,

Han

et al. 2024

ACS Appl. Mater. Interfaces

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Cost-effective and environmentally friendly Fe-based active materials offer exceptionally high energy capacity in lithium-ion batteries (LIBs) due to their multiple electron redox reactions. However, challenges, such as morphology degradation during cycling, cell pulverization, and electrochemical stability, have hindered their widespread use. Herein, we demonstrated a simple salt-assisted freeze-drying method to design a double-shelled Fe/Fe3C core tightly anchored on a porous carbon framework (FEC). The shell consists of a thin Fe3O4 layer (≈2 nm) and a carbon layer (≈10 nm) on the outermost part. Benefiting from the complex nanostructuring (porous carbon support, core–shell nanoparticles, and Fe3C incorporation), the FEC anode delivered a high discharge capacity of 947 mAh g–1 at 50 mA g–1 and a fast-rate capability of 305 mAh g–1 at 10 A g–1. Notably, the FEC cell still showed 86% reversible capacity retention (794 mAh g–1 at 50 mA g–1) at a high cycling temperature of 80 °C, indicating superior structural integrity during cycling at extreme temperatures. Furthermore, we conducted a simple solid-state fluorination technique using the as-prepared FEC sample and excess NH4F to prepare iron fluoride-carbon composites (FeF2/C) as the positive electrode. The full cell configuration, consisting of the FEC anode and FeF2/C cathode, reached a remarkable capacity of 200 mAh g–1 at a 20 mA g–1 rate or an energy density of approximately 530 Wh kg–1. Thus, the straightforward and simple experimental design holds great potential as a revolutionary Fe-based cathodic–anodic pair candidate for high-energy LIBs.

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Section: Resultsmentioning

confidence: 99%

Double-Shelled Fe–Fe₃C Nanoparticles Embedded on a Porous Carbon Framework for Superior Lithium-Ion Half/Full Batteries

Devina,

Subiyanto,

Han

et al. 2024

ACS Appl. Mater. Interfaces

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“…A brief comparison of the synthesis method, reversible capacity, cycle life, and current density of Fe 3 O 4 -based anode materials is listed in Table 1. [58][59][60][61][62][63][64][65] The Fe 3 O 4 QDs@C/RGO composite electrode has the obvious merits of high reversible capacity, excellent long-time cycling stability as well as a facile synthesis method.…”

Section: Rsc Applied Interfaces Papermentioning

confidence: 99%

Synthesis of a MOF-derived magnetite quantum dots on surface modulated reduced graphene oxide composite for high-rate lithium-ion storage

Jia,

Yu,

Han

et al. 2024

RSC Appl. Interfaces

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“…In addition, transition metal oxides serve as a promising anode material due to their high theoretical capacity, good safety, environmental friendliness, and abundant reserves. − The transition metal oxides include Fe 2 O 3 , , Fe 3 O 4 , Co 3 O 4 , CoO, , NiO, , MnO, , Mn 3 O 4 . , Among them, CoO has been widely noticed for its convenient preparation and higher theoretical capacity (716 mAh g –1 ). − Saikia et al confined CoO nanoparticles in mesoporous carbon to prepare composites and achieved an excellent lithium storage performance. Shi et al combined CoO with N-doped carbon materials to obtain sandwich-like composites, which achieved 1031.2 mAh g –1 after 500 cycles at 0.5 A g –1 .…”

Section: Introductionmentioning

confidence: 99%

“…In addition, transition metal oxides serve as a promising anode material due to their high theoretical capacity, good safety, environmental friendliness, and abundant reserves. 16−18 The transition metal oxides include Fe 2 O 3 , 19,20 Fe 3 O 4 , 21 Co 3 O 4 , 22 CoO, 23,24 NiO, 25,26 MnO, 27,28 preparation and higher theoretical capacity (716 mAh g −1 ). 31−33 Saikia et al 34 confined CoO nanoparticles in mesoporous carbon to prepare composites and achieved an excellent lithium storage performance.…”

Section: Introductionmentioning

confidence: 99%

Carbon Layer and CoO Nanosheet Dual-Encapsulated SiO_x Particles for Ultra-High Specific Capacity Lithium-Ion Batteries

Huang

Yuan

et al. 2023

Energy Fuels

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Silicon-based (Si-based) materials have attracted considerable attention due to their extremely high specific capacity, while the huge volume change up to 400% during cycling severely limits their widespread use. Silicon-oxygen (SiO x ) anode materials, belonging to silicon-based materials, are considered to be more promising anode materials for practical applications due to their lower volume expansion without losing the high capacity. However, the existence of the volume expansion and the poor electrical conductivity of SiO x anode materials cannot be ignored. The encapsulation of SiO x particles by introducing a conductive carbon layer can greatly alleviate the volume expansion issue and improve the conductivity of the composites. In addition, to further boost the lithium storage capacity of the composites, the SiO x @ C@CoO composites were obtained by an electrostatic self-assembly of CoO nanosheets onto the surface of SiO x @C materials. The introduction of CoO nanosheets increased the specific surface area of the composites, thereby enlarging the contact area with active Li + and reducing the ion/electron transport radius, which in turn improved the lithium storage capacity of the composites. The final SiO x @C@CoO composite has an excellent electrochemical performance, with a reversible capacity of 1120 mAh g −1 after 100 cycles at 0.2 A g −1 .

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High-performance lithium-ion batteries with different hollow-degree Fe3O4@C hollow nanostructures

Cited by 13 publications

References 31 publications

Double-Shelled Fe–Fe₃C Nanoparticles Embedded on a Porous Carbon Framework for Superior Lithium-Ion Half/Full Batteries

Double-Shelled Fe–Fe₃C Nanoparticles Embedded on a Porous Carbon Framework for Superior Lithium-Ion Half/Full Batteries

Synthesis of a MOF-derived magnetite quantum dots on surface modulated reduced graphene oxide composite for high-rate lithium-ion storage

Carbon Layer and CoO Nanosheet Dual-Encapsulated SiO_x Particles for Ultra-High Specific Capacity Lithium-Ion Batteries

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High-performance lithium-ion batteries with different hollow-degree Fe3O4@C hollow nanostructures

Cited by 13 publications

References 31 publications

Double-Shelled Fe–Fe3C Nanoparticles Embedded on a Porous Carbon Framework for Superior Lithium-Ion Half/Full Batteries

Double-Shelled Fe–Fe3C Nanoparticles Embedded on a Porous Carbon Framework for Superior Lithium-Ion Half/Full Batteries

Synthesis of a MOF-derived magnetite quantum dots on surface modulated reduced graphene oxide composite for high-rate lithium-ion storage

Carbon Layer and CoO Nanosheet Dual-Encapsulated SiOx Particles for Ultra-High Specific Capacity Lithium-Ion Batteries

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Product

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Double-Shelled Fe–Fe₃C Nanoparticles Embedded on a Porous Carbon Framework for Superior Lithium-Ion Half/Full Batteries

Double-Shelled Fe–Fe₃C Nanoparticles Embedded on a Porous Carbon Framework for Superior Lithium-Ion Half/Full Batteries

Carbon Layer and CoO Nanosheet Dual-Encapsulated SiO_x Particles for Ultra-High Specific Capacity Lithium-Ion Batteries