What question did this study set out to answer?

To identify and optimize the structural and interfacial factors governing the electrochemical performance of TiO2 anatase anodes in sodium-ion batteries.

July 14, 2017ACS OmegaOpen Access

Toward a Better Understanding and Optimization of the Electrochemical Activity of Na-Ion TiO2 Anatase Anodes Using Uniform Nanostructures and Ionic Liquid Electrolytes

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Authors

MVM. Beatriz Vázquez-Santos EME. Morales PTPedro Tartaj

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Overview

Laboratory study reveals structural and electrolyte drivers of sodium-ion uptake in anatase anodes, indicating viable safety-focused alternatives to lithium-ion systems.

Key Points

To identify and optimize the structural and interfacial factors governing the electrochemical performance of TiO2 anatase anodes in sodium-ion batteries.
Synthesized uniform, high-surface-area undoped TiO2 anatase nanostructures via a self-assembly seeding-assisted method across varied crystal and aggregate scales.
Assembled electrodes combined with a low-flammable ionic liquid electrolyte to isolate solid electrolyte interface (SEI) reactions from intrinsic anatase electrochemistry at 30 °C and 60 °C.
Electrodes preserving original nanostructure conformation after cycling achieved Na+ uptake exceeding the Ti4+/Ti3+ redox limit via reversible mechanisms below 0.5–0.7 V and irreversible processes near 0.3 V.
Shifts in crystal dimensions (ca. 6 to 11 nm) and nanostructure sizes (ca. 50 to 80 nm) induced pronounced variations in electrochemical activity, establishing multi-scale size as a critical control variable.
Electrochemical performance of the optimized anatase electrodes in ionic liquids at 30 °C and 60 °C equaled that of equivalent nanostructures operated in lithium-ion electrolytes.

Cite This Study

Vázquez-Santos et al. (2017) studied this question.

synapsesocial.com/papers/6a9fcd9e16360f1e481de4a9 https://doi.org/10.1021/acsomega.7b00548

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July 14, 2017ACS OmegaOpen Access

Toward a Better Understanding and Optimization of the Electrochemical Activity of Na-Ion TiO2 Anatase Anodes Using Uniform Nanostructures and Ionic Liquid Electrolytes

View Full Paper

Ask AI

Bookmark

Authors

MVM. Beatriz Vázquez-Santos EME. Morales PTPedro Tartaj

Discussion

Member takes

Overview

Laboratory study reveals structural and electrolyte drivers of sodium-ion uptake in anatase anodes, indicating viable safety-focused alternatives to lithium-ion systems.

Key Points

To identify and optimize the structural and interfacial factors governing the electrochemical performance of TiO2 anatase anodes in sodium-ion batteries.
Synthesized uniform, high-surface-area undoped TiO2 anatase nanostructures via a self-assembly seeding-assisted method across varied crystal and aggregate scales.
Assembled electrodes combined with a low-flammable ionic liquid electrolyte to isolate solid electrolyte interface (SEI) reactions from intrinsic anatase electrochemistry at 30 °C and 60 °C.
Electrodes preserving original nanostructure conformation after cycling achieved Na+ uptake exceeding the Ti4+/Ti3+ redox limit via reversible mechanisms below 0.5–0.7 V and irreversible processes near 0.3 V.
Shifts in crystal dimensions (ca. 6 to 11 nm) and nanostructure sizes (ca. 50 to 80 nm) induced pronounced variations in electrochemical activity, establishing multi-scale size as a critical control variable.
Electrochemical performance of the optimized anatase electrodes in ionic liquids at 30 °C and 60 °C equaled that of equivalent nanostructures operated in lithium-ion electrolytes.

Cite This Study

Vázquez-Santos et al. (2017) studied this question.

synapsesocial.com/papers/6a9fcd9e16360f1e481de4a9 https://doi.org/10.1021/acsomega.7b00548

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