CoO hierarchical mesoporous nanospheres@TiO2@C for high-performance lithium-ion storage

Yuan, Yongfeng; Zhao, W.C.; Chen, L.; Cai, Gaoshen; Guo, S.Y.

doi:10.1016/j.apsusc.2021.149810

Cited by 38 publications

(10 citation statements)

References 48 publications

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“…The superior electrochemical performance could result from the facile water bath method and the structure hybridization of nanosheets and nanoparticles [42][43][44][45][46]. The nanoparticles filled in the nanosheets could avoid the aggregation of the nanosheets and then accommodate the volume change during the discharge-charge cycles [42,43,47]. To clarify the electrochemical reactions of the Co(OH) 2 nanomaterials, the first five cyclic voltammetry (CV) curves at 0.1mV/s were measured, as shown in Figure 5a.…”

Section: Electrochemical Performancementioning

confidence: 99%

High Cycle Stability of Hybridized Co(OH)2 Nanomaterial Structures Synthesized by the Water Bath Method as Anodes for Lithium-Ion Batteries

et al. 2022

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Cobalt oxides have been intensely explored as anodes of lithium-ion batteries to resolve the intrinsic disadvantages of low electrical conductivity and volume change. However, as a precursor of preparing cobalt oxides, Co(OH)2 has rarely been investigated as the anode material of lithium-ion batteries, perhaps because of the complexity of hydroxides. Hybridized Co(OH)2 nanomaterial structures were synthesized by the water bath method and exhibited high electrochemical performance. The initial discharge and charge capacities were 1703.2 and 1262.9 mAh/g at 200 mA/g, respectively. The reversible capacity was 1050 mAh/g after 150 cycles. The reversible capability was 1015 mAh/g at 800 mA/g and increased to 1630 mAh/g when driven back to 100 mA/g. The electrochemical reaction kinetics study shows that the lithium-ion diffusion-controlled contribution is dominant in the energy storage mechanism. The superior electrochemical performance could result from the water bath method and the hybridization of nanosheets and nanoparticles structures. These hybridized Co(OH)2 nanomaterial structures with high electrochemical performance are promising anodes for lithium-ion batteries.

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Section: Electrochemical Performancementioning

confidence: 99%

High Cycle Stability of Hybridized Co(OH)2 Nanomaterial Structures Synthesized by the Water Bath Method as Anodes for Lithium-Ion Batteries

et al. 2022

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“…The phenome agrees with a previous report. 37 Fig. 9b illustrates the high-resolution XPS spectrum of Co 2p after 100 cycles.…”

Section: Resultsmentioning

confidence: 99%

In situ growth of CoO nanosheets on a carbon fiber derived from corn cellulose as an advanced hybrid anode for lithium-ion batteries

Yuan

2022

New J. Chem.

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“…Among these oxides, cobalt-based oxides, such as CoO and Co 3 O 4 , are quite attractive due to their stable electrochemical performance and high theoretical specific capacities (716 mAh/g for CoO and 829 mAh/g for Co 3 O 4 ). [18][19] However, high capacity would more likely to cause severe volume changes during Li + intercalation/ deintercalation, leading to capacity decay. [20][21][22][23] To address this issue, morphological construction and nanoscale design, such as nanowires, nanosheets, nanospheres, etc.…”

Section: Introductionmentioning

confidence: 99%

Cobalt Oxide Arrays Anchored to Copper Foam as Efficient Binder‐free Anode for Lithium Ion Batteries

Liu

et al. 2023

ChemPhysChem

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The development of lithium‐ion batteries with simplified assembling steps and fast charge capability is crucial for current battery applications. In this study, we propose a simple in‐situ strategy for the construction of high‐dispersive cobalt oxide (CoO) nanoneedle arrays, which grow vertically on a copper foam substrate. It is demonstrated that this nanoneedle CoO electrodes provide abundant electrochemical surface area. The resulting CoO arrays directly act as binder‐free anodes in lithium‐ion batteries with the copper foam functioning as the current collector. The highly‐dispersed feature of the nanoneedle arrays enhances the effectiveness of active materials, leading to outstanding rate capability and superior long‐term cycling stability. These impressive electrochemical properties are attributed to the highly‐dispersed self‐standing nanoarrays, the advantages of binder‐free constituent, and the high exposed surface area of the copper foam substrate compared to copper foil, which enrich active surface area and facilitate charge transfer. The proposed approach to prepare binder‐free lithium‐ion battery anodes streamlines the electrode fabrication steps and holds significant promise for the future development of the battery industry.

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CoO hierarchical mesoporous nanospheres@TiO2@C for high-performance lithium-ion storage

Cited by 38 publications

References 48 publications

High Cycle Stability of Hybridized Co(OH)2 Nanomaterial Structures Synthesized by the Water Bath Method as Anodes for Lithium-Ion Batteries

High Cycle Stability of Hybridized Co(OH)2 Nanomaterial Structures Synthesized by the Water Bath Method as Anodes for Lithium-Ion Batteries

In situ growth of CoO nanosheets on a carbon fiber derived from corn cellulose as an advanced hybrid anode for lithium-ion batteries

Cobalt Oxide Arrays Anchored to Copper Foam as Efficient Binder‐free Anode for Lithium Ion Batteries

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