CNTs–C@TiO2 composites with 3D networks as anode material for lithium/sodium ion batteries

Chen, Jin; Wang, Enqi; Mu, Jiechen; Ai, Bing; Zhang, Tiezhu; Ge, Wenqing; Zhang, Lipeng

doi:10.1007/s10853-018-2814-2

Cited by 25 publications

(5 citation statements)

References 50 publications

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“…16,45 The values of 1.715 and 2.209 V may be due to the redox peaks of TiO 2 . 46 For the second discharging process, the peaks of 2.080 and 1.376 V are attributed to the reduction of TiO 2 . The peaks of 1.513 and 0.641 V are the reduction of V 3 S 4 .…”

Section: Resultsmentioning

confidence: 97%

“…Figure a shows the cyclic voltammetry (CV) curves of VTC composites with 0.01–3.0 V vs Li + /Li at a scanning rate of 0.1 mV s –1 . The peak positions at 1.392, 1.191, 0.641, and 0.242 V during the initial discharge cycle can be attributed to the gradual insertion of Li + into the V 3 S 4 intermediate layer and the generation of the solid-state electrolyte interface (SEI). − During the charging process, the negative peaks located at 1.215 and 1.861 V correspond to the lithium removal process from Li x V 3 S 4 and formation of V 3 S 4 . , The values of 1.715 and 2.209 V may be due to the redox peaks of TiO 2 . For the second discharging process, the peaks of 2.080 and 1.376 V are attributed to the reduction of TiO 2 .…”

Section: Resultsmentioning

confidence: 99%

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Electrospun TiO₂/V₃S₄/Carbon Nanotube Composite Nanofibers as Anodes for Lithium-Ion Batteries with Enhanced Cycling Performance

Xie,

Lin,

Deng

et al. 2023

ACS Appl. Nano Mater.

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Vanadium sulfide is considered one of the candidates for negative electrode materials in lithium-ion batteries (LIBs). Due to its unique layered structure and high theoretical capacity, it has received great attention from researchers. However, the cyclic life and rate performance caused by large volume changes are not ideal, which hinders its commercial application. Here, electrospun TiO 2 /V 3 S 4 /carbon nanotube (CNT) composite nanofibers were synthesized as anodes and showed excellent lithium storage properties. Adding carbon nanotubes can improve the overall conductivity and mechanical properties of the electrode materials. The carbon matrix doped with N and S provides more defects and active sites, which can further improve the conductivity and lithium storage capacity of the material. At a current density of 0.1 A g −1 , the specific capacity of TiO 2 /V 3 S 4 /CNT was still 718.1 mA h g −1 after 100 cycles, and the capacity retention rate was 92.96% after removing the irreversible reaction of the first cycle. Long cycle testing was conducted at a current density of 1 A g −1 , and after 700 cycles, there was still 712.2 mA h g −1 .

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Section: Resultsmentioning

confidence: 97%

Section: Resultsmentioning

confidence: 99%

Electrospun TiO₂/V₃S₄/Carbon Nanotube Composite Nanofibers as Anodes for Lithium-Ion Batteries with Enhanced Cycling Performance

Xie,

Lin,

Deng

et al. 2023

ACS Appl. Nano Mater.

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“…Thus, in order to promote the utilization of TiO 2 as an advanced electrode material in batteries, it is essential to alter its structural and morphological properties. To date, various strategies such as modification by metal or nonmetal doping, coupling with other materials, chemical or electrochemical reduction, and defect engineering have been proposed to modify TiO 2 to overcome the above-mentioned drawbacks [36,37]. Although various strategies have been reported for modifying TiO 2 , this chapter will focus solely on coupling TiO 2 with other materials as a way to improve its electrochemical properties.…”

Section: Tio 2 Propertiesmentioning

confidence: 99%

Titanium Dioxide-Based Nanocomposites: Properties, Synthesis, and Their Application in Energy Storage

Madima,

Khumalo,

Raphulu

2024

Nanotechnology and Nanomaterials

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Energy storage technology is a valuable tool for storing and utilizing newly generated energy. Lithium-based batteries have proven to be effective energy storage units in various technological devices due to their high-energy density. However, a major obstacle to developing lithium-based battery technology is the lack of high-performance electrode materials with a long lifespan, superior rate capability, and high safety standards. Thus, the rational design of highly reliable electrode materials is crucial when considering the development of high-performance lithium-based batteries for sustainable energy storage. As a result, titanium dioxide-based nanocomposites have gained a lot of interest as potential electrode materials for lithium-based batteries due to their unique properties such as structural characteristics, low cost, safety, and environmental friendliness. Therefore, this chapter gives an overview of the properties, preparation methods, and application of titanium dioxide-based nanocomposites as anode and cathode active materials for high-performance lithium-based batteries.

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“…This structure shows gradient-ordered character and is composed of obvious amorphous Si, expanded Comparing the specific capacities of five electrodes before and after electrochemical reconstruction. c) Specific capacities of the five activated electrodes and other reported related anodes (micro-Si: microsized-Si, [11] crystalline Si; [41] graphite: EG-600, [42] expanded graphite, [25] natural graphite, [43] graphite-1, [44] graphite-2, [45] graphite-3, [46] graphite-4, [47] graphitic carbon foam; [48] TiO 2 : TiO 2 microspheres, [49] TiO 2 nanosheets, [50] Sulfur-doped-TiO 2 /on carbon sheet, [51] TiO 2 nanotube, [52] MXene-derived-TiO 2 @reduced graphene oxide, [53] Carbon nanotubes-C@TiO 2 , [54] TiO 2 @TiO 2−x -phosphorus, [55] N and S codoped-TiO 2 , [56] TiO 2 @C, [57] TiO 2 in carbon nanosheets, [58] TiO 2 @C-800, [59] N doped carbon nanosheet-TiO 2 [60] ).…”

Section: Applicability To Other Anodesmentioning

confidence: 99%

Multilevel Gradient‐Ordered Silicon Anode with Unprecedented Sodium Storage

Li,

Wu,

et al. 2023

Advanced Materials

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While cost‐effective sodium‐ion batteries (SIBs) with crystalline silicon anodes promise high theoretical capacities, they perform poorly because silicon stores sodium ineffectively (capacity <40 mAh g−1). To address this issue, herein an atomic‐order structural‐design tactic is adopted for obtaining unique multilevel gradient‐ordered silicon (MGO‐Si) by simple electrochemical reconstruction. In situ‐formed short‐range‐, medium‐range‐, and long‐range‐ordered structures construct a stable MGO‐Si, which contributes to favorable Na–Si interaction and fast ion diffusion channels. These characteristics afford a high reversible capacity (352.7 mAh g−1 at 50 mA g−1) and stable cycling performance (95.2% capacity retention after 4000 cycles), exhibiting record values among those reported for pure silicon electrodes. Sodium storage of MGO‐Si involves an adsorption–intercalation mechanism, and a stepwise construction strategy of gradient‐ordered structure further improves the specific capacity (339.5 mAh g−1 at 100 mA g−1). Reconstructed Si/C composites show a high reversible capacity of 449.5 mAh g−1, significantly better than most carbonaceous anodes. The universality of this design principle is demonstrated for other inert or low‐capacity materials (micro‐Si, SiO2, SiC, graphite, and TiO2), boosting their capacities by 1.5–6 times that of pristine materials, thereby providing new solutions to facilitate sodium storage capability for better‐performing battery designs.

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CNTs–C@TiO2 composites with 3D networks as anode material for lithium/sodium ion batteries

Cited by 25 publications

References 50 publications

Electrospun TiO₂/V₃S₄/Carbon Nanotube Composite Nanofibers as Anodes for Lithium-Ion Batteries with Enhanced Cycling Performance

Electrospun TiO₂/V₃S₄/Carbon Nanotube Composite Nanofibers as Anodes for Lithium-Ion Batteries with Enhanced Cycling Performance

Titanium Dioxide-Based Nanocomposites: Properties, Synthesis, and Their Application in Energy Storage

Multilevel Gradient‐Ordered Silicon Anode with Unprecedented Sodium Storage

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CNTs–C@TiO2 composites with 3D networks as anode material for lithium/sodium ion batteries

Cited by 25 publications

References 50 publications

Electrospun TiO2/V3S4/Carbon Nanotube Composite Nanofibers as Anodes for Lithium-Ion Batteries with Enhanced Cycling Performance

Electrospun TiO2/V3S4/Carbon Nanotube Composite Nanofibers as Anodes for Lithium-Ion Batteries with Enhanced Cycling Performance

Titanium Dioxide-Based Nanocomposites: Properties, Synthesis, and Their Application in Energy Storage

Multilevel Gradient‐Ordered Silicon Anode with Unprecedented Sodium Storage

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Product

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Electrospun TiO₂/V₃S₄/Carbon Nanotube Composite Nanofibers as Anodes for Lithium-Ion Batteries with Enhanced Cycling Performance

Electrospun TiO₂/V₃S₄/Carbon Nanotube Composite Nanofibers as Anodes for Lithium-Ion Batteries with Enhanced Cycling Performance