Design and synthesis of a novel 3D hierarchical mesocarbon microbead as anodes for lithium ion batteries and sodium ion batteries

Zhao, Doudou; Ru, Qiang; Hu, Shejun; Hou, Xianhua

doi:10.1007/s11581-016-1884-x

Cited by 16 publications

(16 citation statements)

References 31 publications

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“…41‐1487) in Figure a. In addition, a strong and sharp diffraction peak located at 26.38° indicates the good crystallinity of MCMB …”

Section: Resultsmentioning

confidence: 92%

“…In the first oxidation scan of the battery with a cellular Cu@CuO current collector, four peaks near 0.30, 1.58, 2.47, and 2.74 V can also be seen, which correspond to the extraction of Li‐ions in hierarchical graphite layers, decomposition of SEI film, formation of Cu 2 O, as well as oxidation of Cu 2 O into CuO . However, as for the first CV curves of the cellular and complanate Cu current collectors, there are only one cathodic peak at 0 V and one anodic peak at 0.30 V, as mentioned earlier, relating to the insertion/extraction of Li‐ions in hierarchical graphite layers . Moreover, after the first cycle, the following CV curves are almost overlapped, demonstrating that the electrochemical reactions are becoming more reversible (Figure b–d).…”

Section: Resultsmentioning

confidence: 99%

“…The third peak is associated with further reduction of the Cu 2 O phase into Cu and Li 2 O . The last reduction reaction takes place at about 0 V, due to the insertion of Li‐ions in hierarchical graphite layers . In addition, these cathodic peaks are accompanied with the formation of the solid–electrolyte interface (SEI) film .…”

Section: Resultsmentioning

confidence: 99%

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Honeycomb‐Inspired Surface‐Patterned Cu@CuO Composite Current Collector for Lithium‐Ion Batteries

et al. 2019

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The interface design between the current collector and active materials has a non‐negligible effect on the performance of lithium‐ion batteries (LIBs). Inspired by the honeycomb with a large specific surface area, this work validates the use of a surface‐patterned cellular Cu@CuO composite current collector with a hexagonal blind hole array and a nanostructured film of CuO nanoflowers for LIBs. This unique structure is synthesized by lithography and solution immersion. Mesocarbon microbead graphite powders are used as the active materials. Results show that the battery with the cellular Cu@CuO current collector maintains a reversible charge capacity of 354.1 mAh g−1 at 100 mA g−1 after 200 cycles. Compared with the Cu‐based current collector with a hexagonal blind hole array and a bare Cu current collector, the new pattern gains a performance improvement in the reversible capacity by 27.9% and 153.2%, respectively. The excellent electrochemical property of the cellular Cu@CuO current collector can be ascribed to strengthened adhesion with the active materials, reduced contact resistance, and improved Li‐ion diffusion capability. Due to the enhanced electrochemical performance, facile preparation processes, and cost‐effective raw materials, the new current collector shows great potential to replace the conventional current collector of energy storage systems.

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“…41‐1487) in Figure a. In addition, a strong and sharp diffraction peak located at 26.38° indicates the good crystallinity of MCMB …”

Section: Resultsmentioning

confidence: 92%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Honeycomb‐Inspired Surface‐Patterned Cu@CuO Composite Current Collector for Lithium‐Ion Batteries

et al. 2019

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“…However, lithium supplies are consumed rapidly due to the increasing large‐scale application of LIBs . Recently, sodium‐ion batteries (SIBs) have drawn widespread attention for the cheap and abundant resources of sodium in the ocean . In addition, sodium has a close redox potential compared to lithium (−2.71 V vs. SHE for Na + /Na while −3.04 V for Li + /Li) .…”

Section: Introductionmentioning

confidence: 99%

“…[2] Recently, sodium-ion batteries (SIBs) have drawn widespread attention for the cheap and abundant resources of sodium in the ocean. [3] In addition, sodium has a close redox potential compared to lithium (À2.71 V vs. SHE for Na + /Na while À3.04 V for Li + /Li). [4] The similar chemical characteristics of sodium and lithium is another advantage for SIBs to develop.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Electrochemical Performance of Mesocarbon‐Microbeads‐Based Anodes through Air Oxidation for Sodium‐Ion Batteries

et al. 2017

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Air oxidation is introduced as a simple and feasible method of modification for mesocarbon microbeads (MCMBs), which improves the electrochemical performance of MCMBs as anodes for sodium‐ion batteries (SIBs). Optimal oxidation conditions are explored. Green MCMBs, initially oxidized at 360 °C then carbonized (OC‐MCMB360), exhibit a high reversible capacity up to 286 mAh g−1 at a current density of 25 mA g−1. In addition, the OC‐MCMB360 sample also presents an excellent rate performance with 79 mAh g−1 at a current density of 3.2 A g−1 and a considerable reversible capacity of 166 mAh g−1 after 100 cycles at 100 mA g−1. The larger interlayer spacing and increased defect sites caused by oxidation contribute to the enhanced electrochemical performance of oxidized MCMBs in SIBs.

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Multidimensional Evolution of Carbon Structures Underpinned by Temperature‐Induced Intermediate of Chloride for Sodium‐Ion Batteries

et al. 2018

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Different dimensions of carbon materials with various features have captured numerous interests due to their applications on the tremendous fields. Restricted by the raw materials and devices, the controlling of their morphology is a major challenge. Utilizing the catalytic features of the intermediates from the low‐cost salts and polymerization of 0D carbon quantum dots (CQDs), 0D CQDs are expected to self‐assemble into 1/2/3D carbon structures with the assistance of temperature‐induced intermediates (e.g., ZnO, Ni, and Cu) from the salts (ZnCl2, NiCl2, and CuCl). The formation mechanisms are illustrated as follows: 1) the “orient induction” to evoke “vine style” growth mechanism of ZnO; 2) the “dissolution–precipitation” of Ni; and 3) the “surface adsorption self‐limited” of Cu. Subsequently, the degree of graphitization, interlayer distance, and special surface area are investigated in detail. 1D structure from 700 °C as anode displays a high Na‐storage capacity of 301.2 mAh g−1 at 0.1 A g−1 after 200 cycles and 107 mAh g−1 at 5.0 A g−1 after 5000 cycles. Quantitative kinetics analysis confirms the fundamentals of the enhanced rate capacity and the potential region of Na‐insertion/extraction. This elaborate work opens up an avenue toward the design of carbon with multidimensions and in‐depth understanding of their sodium‐storage features.

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Design and synthesis of a novel 3D hierarchical mesocarbon microbead as anodes for lithium ion batteries and sodium ion batteries

Cited by 16 publications

References 31 publications

Honeycomb‐Inspired Surface‐Patterned Cu@CuO Composite Current Collector for Lithium‐Ion Batteries

Honeycomb‐Inspired Surface‐Patterned Cu@CuO Composite Current Collector for Lithium‐Ion Batteries

Enhanced Electrochemical Performance of Mesocarbon‐Microbeads‐Based Anodes through Air Oxidation for Sodium‐Ion Batteries

Multidimensional Evolution of Carbon Structures Underpinned by Temperature‐Induced Intermediate of Chloride for Sodium‐Ion Batteries

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