Scalable synthesis and superior performance of TiO2-reduced graphene oxide composite anode for sodium-ion batteries

Fu, Conglong; Chen, Taiqiang; Qin, Wei; Lü, Ting; Sun, Zhenrong; Xie, Xiaohua; Pan, Likun

doi:10.1007/s11581-015-1574-0

Cited by 22 publications

(7 citation statements)

References 45 publications

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“…This is because bulk Na + diffusion suffers from a high intrinsic activation barrier for the Na + diffusion through the TiO 2 anatase lattice as predicted by nudged elastic band calculations . The commonly observed broadening and decreased intensities of the TiO 2 reflections in the reported TiO 2 –graphene nanocomposites during discharge are actually attributed to the partial loss of crystallinity of the outer shells of the TiO 2 particles, while the direct formation of Na x TiO 2 was not observed in the previously reported TiO 2 –C nanocomposites. − ,− Intriguingly, of the test anodes the graphene nanosheets exhibited the highest initial reversible capacity of ca. 250 mAh g –1 .…”

Section: Resultsmentioning

confidence: 82%

Electrostatic Self-Assembly Enabling Integrated Bulk and Interfacial Sodium Storage in 3D Titania-Graphene Hybrid

Xiao

Sheng

et al. 2017

Nano Lett.

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Room-temperature sodium-ion batteries have attracted increased attention for energy storage due to the natural abundance of sodium. However, it remains a huge challenge to develop versatile electrode materials with favorable properties, which requires smart structure design and good mechanistic understanding. Herein, we reported a general and scalable approach to synthesize three-dimensional (3D) titania-graphene hybrid via electrostatic-interaction-induced self-assembly. Synchrotron X-ray probe, transmission electron microscopy, and computational modeling revealed that the strong interaction between titania and graphene through comparably strong van der Waals forces not only facilitates bulk Na intercalation but also enhances the interfacial sodium storage. As a result, the titania-graphene hybrid exhibits exceptional long-term cycle stability up to 5000 cycles, and ultrahigh rate capability up to 20 C for sodium storage. Furthermore, density function theory calculation indicated that the interfacial Li, K, Mg and Al storage can be enhanced as well. The proposed general strategy opens up new avenues to create versatile materials for advanced battery systems.

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Section: Resultsmentioning

confidence: 82%

Electrostatic Self-Assembly Enabling Integrated Bulk and Interfacial Sodium Storage in 3D Titania-Graphene Hybrid

Xiao

Sheng

et al. 2017

Nano Lett.

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“…Composites with conductive carbon helps to improve the electronic conductivity and thus the electrochemical properties, in particular the rate capability. In particular, graphene is the most conductive form of carbon and has thus been considered for this purpose [234][235][236]. A graphene-TiO 2 composite delivered a capacity of 115 mA•h•g −1 at a current of 1 A•g −1 and a stable specific capacity of 102 mA•h•g −1 at 0.1 A•g −1 after 300 cycles.…”

Section: Intercalation-based Materialsmentioning

confidence: 99%

“…), metal chalcogenide-based including intercalation materials (from ref. [231][232][233][234][235][236][237][238][239][240][241][242][243][244][245]) and conversion reaction compounds (from ref. [259]).…”

Section: G Intermetallic Compoundsmentioning

confidence: 99%

State-of-the-Art Electrode Materials for Sodium-Ion Batteries

Mauger

Julien

2020

Materials

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Sodium-ion batteries (SIBs) were investigated as recently as in the seventies. However, they have been overshadowed for decades, due to the success of lithium-ion batteries that demonstrated higher energy densities and longer cycle lives. Since then, the witness a re-emergence of the SIBs and renewed interest evidenced by an exponential increase of the publications devoted to them (about 9000 publications in 2019, more than 6000 in the first six months this year). This huge effort in research has led and is leading to an important and constant progress in the performance of the SIBs, which have conquered an industrial market and are now commercialized. This progress concerns all the elements of the batteries. We have already recently reviewed the salts and electrolytes, including solid electrolytes to build all-solid-state SIBs. The present review is then devoted to the electrode materials. For anodes, they include carbons, metal chalcogenide-based materials, intercalation-based and conversion reaction compounds (transition metal oxides and sulfides), intermetallic compounds serving as functional alloying elements. For cathodes, layered oxide materials, polyionic compounds, sulfates, pyrophosphates and Prussian blue analogs are reviewed. The electrode structuring is also discussed, as it impacts, importantly, the electrochemical performance. Attention is focused on the progress made in the last five years to report the state-of-the-art in the performance of the SIBs and justify the efforts of research.

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“…With the increasingly serious environmental problems and the reduction of non-renewable resources, the development and application of new-energy materials become an urgent issue. Therefore, these problems have drawn the researchers’ attention and are pushing researchers to develop the clean, effective and sustainable technologies to supply and store energy such as lithium–sulfur batteries [1], lithium–air batteries [2], zinc–air batteries [3,4], sodium–ion batteries [5] and lithium–ion batteries (LIBs), and so on.…”

Section: Introductionmentioning

confidence: 99%

High Capacity Nano-Sized Carbon Spheres for Lithium-Ion Battery Anode Materials

Wang

Chen

et al. 2019

Polymers

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A one-step hydrothermal method is reported for synthesizing carbon spheres (Cs) with sucrose as the carbon resource for the anode materials in lithium-ion batteries (LIBs). Firstly, the influences of synthesis temperature and time on particle size and the morphology of the Cs were researched. Then, modified carbon spheres (MCs) were synthesized with some surfactants, such as hexadecyl trimethyl ammonium bromide (CTAB) and polyvinyl alcohol (PVA). Finally, nano-sized MCs with an average diameter of 70 nm, owning the smooth surface and uniform spherical morphology systematically investigated by X-ray diffraction (XRD), scanning electron microscope (SEM), and transmission electron microscope (TEM). The outstanding performances of nano-sized MCs synthesized with PVA were demonstrated as anode materials in LIBs. The higher initial discharge capacity of 1180 mAhg−1 and the excellent discharge capacity of 470 mAhg−1 were obtained respectively at 100 mAg−1 (0.27 C) over 50 cycles. The nano-sized MCs has also shown remarkable performance of rate capability of 284.6 mAhg−1 at 1.5 C. In addition, the cycling reversibility of the nano-sized MCs is more stable than that of the sub-micron sized MCs modified with CTAB and no surfactant respectively.

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Scalable synthesis and superior performance of TiO2-reduced graphene oxide composite anode for sodium-ion batteries

Cited by 22 publications

References 45 publications

Electrostatic Self-Assembly Enabling Integrated Bulk and Interfacial Sodium Storage in 3D Titania-Graphene Hybrid

Electrostatic Self-Assembly Enabling Integrated Bulk and Interfacial Sodium Storage in 3D Titania-Graphene Hybrid

State-of-the-Art Electrode Materials for Sodium-Ion Batteries

High Capacity Nano-Sized Carbon Spheres for Lithium-Ion Battery Anode Materials

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