Structure and electrochemical properties of ball-milled Co-carbon nanotube composites as negative electrode material of alkaline rechargeable batteries

Du, Haiyan; Jiao, Lifang; Wang, Qinghong; Wu, Peng; Song, Dawei; Wang, Yijing; Yuan, Huatang

doi:10.1016/j.jpowsour.2010.11.145

Cited by 36 publications

(15 citation statements)

References 21 publications

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“…Similar results were reported in a study of Co-carbon nanotube composites. 80 However, no synergistic effects were reported, although they found that the composite of Co-Si 3 N 4 as an additive in an electrode containing a PrMg 12 hydrogen storage alloy presented good catalytic ability and thus a significant increase in discharge capacity. Similar reports have been made for composites of La 2 Mg 17 alloy and Co, 81 La-Mg-Ni-based and Co-C alloys, 82 LaNi 5 -based and CoB alloys, 83 and LaNi 5 -based alloy and Co. 84 Two discharge plateaus occur for these composites.…”

Section: Composite Materialsmentioning

confidence: 99%

Co-based anode materials for alkaline rechargeable Ni/Co batteries: a review

Zhao

Shen

2012

J. Mater. Chem.

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The Ni/Co battery is a new electrochemical energy storage system for alkaline rechargeable batteries that has been attracting much attention due to its high energy density. This review presents the current R&D status of Co-based materials with a particular focus on Ni/Co batteries, including their underlying principles and the recent progress in Co-based materials (e.g., cobalt oxides and hydroxides, Co-based alloys, and some composites). It emphasizes the relationship of the composition, phase structure and electrochemical properties of Co-based materials that show promise in practical application due to their good electrode performance. The synthesis of novel Co-based materials in nanoscale and low dissolution of active materials into the alkaline solution during cycling are two essential factors favouring the application of this environmentally-friendly battery.

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Section: Composite Materialsmentioning

confidence: 99%

Co-based anode materials for alkaline rechargeable Ni/Co batteries: a review

Zhao

Shen

2012

J. Mater. Chem.

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“…Above results coincide with the other Co-based negative electrode in Ni/Co batteries. 12,[19][20][21][22][23][24][25] The superior electrochemical performance of the hierarchical Co@C nanoflowers was further confirmed by the CV measurements. Figure 7 presents the CV curves of as-synthesized Co@C-3 electrode for the initial few cycles.…”

Section: 2 Electrochemical Propertiesmentioning

confidence: 92%

Hierarchical Co@C Nanoflowers: Synthesis and Electrochemical Properties as an Advanced Negative Material for Alkaline Secondary Batteries

Zhang

et al. 2015

ACS Appl. Mater. Interfaces

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Hierarchical Co@C nanoflowers have been facilely synthesized via a simple route based on a low-temperature solid-phase reaction. The obtained hierarchical Co@C nanoflowers, each constructed of a number of nanosheets, display a three-dimensional architecture with an average grain size of about 300 nm. The electrochemical properties of the Co@C nanoflowers as the negative material for Ni/Co cells have been systemically researched. In particular, Co@C material exhibits high discharge-specific capacity and good cycling stability. The discharge-specific capacity of our Co@C-3 electrode can reach 612.1 mA h g(-1), and the specific capacity of 415.3 mA h g(-1) is retained at a current density of 500 mA g(-1) after 120 cycles, indicating its great potential for high-performance Ni/Co batteries. Interestingly, the as-synthesized Co@C electrode also exhibits favorable rate capability. These desirable properties can be attributed to porous pathways, which allow fast transportation of ions and electrons and easy accessibility to the electrolyte. The dominant electrochemical mechanism of Co@C can be attributed to the reduction-oxidation reaction between metallic cobalt and cobalt hydroxide in alkaline solution.

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“…Significant research has been devoted into Ni-Co batteries and results have been summarized in a review article [22]. In the past, a few methodologies were developed to improve the utilization (reversibility of Equation (2)), including: Reducing crystallite size [22], alloying with B [23], Si [24], P [25], and S [26] to increase the degree of disorder (DOD [27]), mixing silica [28], nitride [29], carbon nanotube [30], and CMK-3 (an ordered mesoporous form of carbon) [31], and forming Co 3 O 4 nanowires [32].…”

Section: Introductionmentioning

confidence: 99%

New Type of Alkaline Rechargeable Battery—Ni-Ni Battery

Wang¹,

Kim

Shen

2016

Batteries

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Abstract:The feasibility of utilizing disordered Ni-based metal hydroxide, as both the anode and the cathode materials, in alkaline rechargeable batteries was validated for the first time. Co and Mn were introduced into the hexagonal Ni(OH) 2 crystal structure to create disorder and defects that resulted in a conductivity increase. The highest discharge capacity of 55.6 mAh¨g´1 was obtained using a commercial Li-ion cathode precursor, specifically NCM111 hydroxide, as anode material in the Ni-Ni battery. Charge/discharge curves, cyclic voltammetry (CV), X-ray diffraction (XRD) analysis, scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray energy dispersive spectroscopy (EDS) analysis, and electron energy loss spectroscopy (EELS) were used to study the capacity degradation mechanism, and the segregation of Ni, Co, and Mn hydroxides in the mixed hydroxide. Further optimization of composition and control in micro-segregation are needed to increase the discharge capacity closer to the theoretical value, 578 mAh¨g´1.

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Structure and electrochemical properties of ball-milled Co-carbon nanotube composites as negative electrode material of alkaline rechargeable batteries

Cited by 36 publications

References 21 publications

Co-based anode materials for alkaline rechargeable Ni/Co batteries: a review

Co-based anode materials for alkaline rechargeable Ni/Co batteries: a review

Hierarchical Co@C Nanoflowers: Synthesis and Electrochemical Properties as an Advanced Negative Material for Alkaline Secondary Batteries

New Type of Alkaline Rechargeable Battery—Ni-Ni Battery

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