High electrochemical performance Li-ion batteries based on the porous carbon@Fe2O3 composite anode

Li, Ze; Li, Yonghua; Xie, Huan; Zuo, Zhaoyang; Chu, Peng

doi:10.1007/s11581-022-04754-6

Cited by 3 publications

(3 citation statements)

References 24 publications

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“…To elucidate the underlying mechanism of lithium-ion storage, an initial cyclic voltammetry (CV) test is performed (Figure 2b). The significant reduction reaction occurs at 0.61 V during the initial discharge process, which can be interpreted as the formation mechanism of the solid electrolyte interphase (SEI) film [34]. During the initial charge process, a distinct oxidation peak is observed between 1.4 V to 2.26 V, indicating a continuous Fe 0 to Fe 3+ oxidation process, consistent with previous reports [34].…”

Section: Resultssupporting

confidence: 88%

“…The significant reduction reaction occurs at 0.61 V during the initial discharge process, which can be interpreted as the formation mechanism of the solid electrolyte interphase (SEI) film [34]. During the initial charge process, a distinct oxidation peak is observed between 1.4 V to 2.26 V, indicating a continuous Fe 0 to Fe 3+ oxidation process, consistent with previous reports [34]. The CV curves of the second and third cycles exhibit a remarkable alteration compared to that of the first cycle.…”

Section: Resultsmentioning

confidence: 99%

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Heterointerface Engineered Core-Shell Fe2O3@TiO2 for High-Performance Lithium-Ion Storage

Miao,

Gao,

et al. 2023

Molecules

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The rational design of the heterogeneous interfaces enables precise adjustment of the electronic structure and optimization of the kinetics for electron/ion migration in energy storage materials. In this work, the built-in electric field is introduced to the iron-based anode material (Fe2O3@TiO2) through the well-designed heterostructure. This model serves as an ideal platform for comprehending the atomic-level optimization of electron transfer in advanced lithium-ion batteries (LIBs). As a result, the core-shell Fe2O3@TiO2 delivers a remarkable discharge capacity of 1342 mAh g−1 and an extraordinary capacity retention of 82.7% at 0.1 A g−1 after 300 cycles. Fe2O3@TiO2 shows an excellent rate performance from 0.1 A g−1 to 4.0 A g−1. Further, the discharge capacity of Fe2O3@TiO2 reached 736 mAh g−1 at 1.0 A g−1 after 2000 cycles, and the corresponding capacity retention is 83.62%. The heterostructure forms a conventional p-n junction, successfully constructing the built-in electric field and lithium-ion reservoir. The kinetic analysis demonstrates that Fe2O3@TiO2 displays high pseudocapacitance behavior (77.8%) and fast lithium-ion reaction kinetics. The capability of heterointerface engineering to optimize electrochemical reaction kinetics offers novel insights for constructing high-performance iron-based anodes for LIBs.

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Section: Resultssupporting

confidence: 88%

Section: Resultsmentioning

confidence: 99%

Heterointerface Engineered Core-Shell Fe2O3@TiO2 for High-Performance Lithium-Ion Storage

Miao,

Gao,

et al. 2023

Molecules

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“…Fe 2 O 3 has a large volume-change during charge and discharge along with a low intrinsic conductivity. The material pulverization reduces the stability of the electrode, and the accompanying voltage hysteresis would deteriorate its electrochemical stability [27,28]. In order to improve the cycling properties, various methods have been reported.…”

Section: Introductionmentioning

confidence: 99%

Rational engineering NiMoO₄ nanosheets or Mn₃O₄ nanowires on Fe₂O₃ microdiscs as novel hierarchical anodes for high-performance lithium-ion batteries

et al. 2023

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Since current graphite-based lithium-ion battery anode has a low theoretical capacity, the development of high-performance lithium-ion battery is severely restricted. Here, novel hierarchical composites composing of microdisc and the secondarily grown nanosheets and nanowires are developed, taking NiMoO4 nanosheets and Mn3O4 nanowires growing on Fe2O3 microdiscs as demonstrating examples. The growth processes of the hierarchical structures have been investigated by adjusting a series of preparation conditions. The morphologies and structures have been characterized by using scanning electron microscopy, transmission electron microscope and X-ray diffraction. Fe2O3@Mn3O4 composite-based anode displays a capacity of 713 mAh g−1 after 100 cycles at 0.5 A g−1 with a high Coulombic efficiency. A good rate-performance is also achieved. Fe2O3@NiMoO4 anode delivers 539 mAh g−1 after 100 cycles at 0.5 A g−1, which is obviously higher than that of pure Fe2O3. The hierarchical structure is conducive to improve the transport of electrons and ions, and provide numerous active sites, thus significantly enhancing the electrochemical performance. Moreover, the electron transfer performance is investigated by using density functional theory calculations. It is expected the findings presented here and the rational engineering of nanosheets/nanowires on microdiscs would be applicable for developing many other high-performance energy-storage composites.

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MOF-derived α-Fe2O3@Fe3O4 on carbon fiber fabric for lithium-ion anode applications

González-Banciella,

Martinez-Diaz,

de Prado

et al. 2024

Journal of Energy Storage

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High electrochemical performance Li-ion batteries based on the porous carbon@Fe2O3 composite anode

Cited by 3 publications

References 24 publications

Heterointerface Engineered Core-Shell Fe2O3@TiO2 for High-Performance Lithium-Ion Storage

Heterointerface Engineered Core-Shell Fe2O3@TiO2 for High-Performance Lithium-Ion Storage

Rational engineering NiMoO₄ nanosheets or Mn₃O₄ nanowires on Fe₂O₃ microdiscs as novel hierarchical anodes for high-performance lithium-ion batteries

MOF-derived α-Fe2O3@Fe3O4 on carbon fiber fabric for lithium-ion anode applications

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High electrochemical performance Li-ion batteries based on the porous carbon@Fe2O3 composite anode

Cited by 3 publications

References 24 publications

Heterointerface Engineered Core-Shell Fe2O3@TiO2 for High-Performance Lithium-Ion Storage

Heterointerface Engineered Core-Shell Fe2O3@TiO2 for High-Performance Lithium-Ion Storage

Rational engineering NiMoO4 nanosheets or Mn3O4 nanowires on Fe2O3 microdiscs as novel hierarchical anodes for high-performance lithium-ion batteries

MOF-derived α-Fe2O3@Fe3O4 on carbon fiber fabric for lithium-ion anode applications

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Rational engineering NiMoO₄ nanosheets or Mn₃O₄ nanowires on Fe₂O₃ microdiscs as novel hierarchical anodes for high-performance lithium-ion batteries