Mesoporous carbon/Li4Ti5O12 nanoflakes composite anode material lithiated to 0.01 V

Bon, Chris Yeajoon; Phiri, Isheunesu; Mwemezi, Manasi; Afrifah, Vera Afumaa; Hamenu, Louis; Ko, Jang Myoun

doi:10.1016/j.jiec.2019.08.026

Cited by 4 publications

(2 citation statements)

References 22 publications

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“…The relatively low ICE obtained in the wide potential window is partly associated with the SEI formation. 40 The 3D macroporous TiO 2 microspheres demonstrate good cyclic stability in both potential windows except for the difference in capacities. Extension of the potential window from 1.0−3.0 to 0.01−3.0 V almost doubles the reversible specific capacity (Figure 3c).…”

Section: Resultsmentioning

confidence: 94%

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Constructing Three-Dimensional Macroporous TiO₂ Microspheres with Enhanced Pseudocapacitive Lithium Storage under Deep Discharging/Charging Conditions

Liu

Luo

et al. 2021

ACS Appl. Mater. Interfaces

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TiO2 has been intensively investigated as an anode material for lithium-ion batteries (LIBs) in 1.0–3.0 V (vs Li+/Li). However, it is a challenge to realize its theoretical capacity (336 mAh g–1) in this limited potential range. Extending the potential range below 1.0 V would increase its capacity but usually at the expense of its cyclic stability owing to the sluggish ionic diffusion and unsatisfactory structural stability. Here, three-dimensional (3D) macroporous TiO2 microspheres with interconnected pores and nanocrystalline thin walls have been constructed through a scalable template-assisted spray drying method to overcome these obstacles. When applied to LIBs, high and stable discharge capacity (300 mAh g–1 at 0.1 A g–1) as well as superior cyclic stability (242 mAh g–1 after 1000 cycles at 1.0 A g–1) can be achieved under deep discharging/charging conditions (0.01–3.0 V vs Li+/Li). Furthermore, the 3D macroporous structure is well preserved under deep discharging/charging and the in situ X-ray diffraction (XRD) patterns and Raman spectra reveal the dominant pseudocapacitive contribution at low potentials (0.01–1.0 V). This work not only develops a facile method to synthesize macroporous metal oxides but also provides insight into the lithium storage mechanism of TiO2 under deep discharging/charging conditions.

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Section: Resultsmentioning

confidence: 94%

“…The ICE values achieved in the narrow and wide potential windows are 83.1 and 63.3%, respectively. The relatively low ICE obtained in the wide potential window is partly associated with the SEI formation …”

Section: Resultsmentioning

confidence: 99%

Constructing Three-Dimensional Macroporous TiO₂ Microspheres with Enhanced Pseudocapacitive Lithium Storage under Deep Discharging/Charging Conditions

Liu

Luo

et al. 2021

ACS Appl. Mater. Interfaces

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Boosting the electrochemical performance of Li4Ti5O12 anode modified by Ag2V4O11

Wang

Zhao

Han

et al. 2021

Electrochimica Acta

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Pressure-induced high performance Li4Ti5O12-Li2Ti3O7 defect electrode

Yan,

Yang,

Qin

et al. 2024

Journal of Alloys and Compounds

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Mesoporous carbon/Li4Ti5O12 nanoflakes composite anode material lithiated to 0.01 V

Cited by 4 publications

References 22 publications

Constructing Three-Dimensional Macroporous TiO₂ Microspheres with Enhanced Pseudocapacitive Lithium Storage under Deep Discharging/Charging Conditions

Constructing Three-Dimensional Macroporous TiO₂ Microspheres with Enhanced Pseudocapacitive Lithium Storage under Deep Discharging/Charging Conditions

Boosting the electrochemical performance of Li4Ti5O12 anode modified by Ag2V4O11

Pressure-induced high performance Li4Ti5O12-Li2Ti3O7 defect electrode

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Mesoporous carbon/Li4Ti5O12 nanoflakes composite anode material lithiated to 0.01 V

Cited by 4 publications

References 22 publications

Constructing Three-Dimensional Macroporous TiO2 Microspheres with Enhanced Pseudocapacitive Lithium Storage under Deep Discharging/Charging Conditions

Constructing Three-Dimensional Macroporous TiO2 Microspheres with Enhanced Pseudocapacitive Lithium Storage under Deep Discharging/Charging Conditions

Boosting the electrochemical performance of Li4Ti5O12 anode modified by Ag2V4O11

Pressure-induced high performance Li4Ti5O12-Li2Ti3O7 defect electrode

Contact Info

Product

Resources

About

Constructing Three-Dimensional Macroporous TiO₂ Microspheres with Enhanced Pseudocapacitive Lithium Storage under Deep Discharging/Charging Conditions

Constructing Three-Dimensional Macroporous TiO₂ Microspheres with Enhanced Pseudocapacitive Lithium Storage under Deep Discharging/Charging Conditions