Battery Electrodes: A Dendritic Nickel Cobalt Sulfide Nanostructure for Alkaline Battery Electrodes (Adv. Funct. Mater. 23/2018)

Li, Wenyao; Zhang, Bingjie; Lin, Runjia; Ho-Kimura, SocMan; He, Guanjie; Zhou, Xiying; Hu, Junqing; Parkin, Ivan P.

doi:10.1002/adfm.201870162

Cited by 10 publications

(5 citation statements)

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“…Such special hierarchical nanostructure grown on carbon cloth achieved remarkable areal capacitance up to 3.04 F cm −2 and maintained good rate performance. And similar to this, Li and co‐workers [ 104 ] reported a dendritic hierarchical heterostructure of primary NiCo 2 O 4 nanorod arrays and secondary NiCo 2 O 4 nanosheets on Ni foam (Figure 6c). As demonstrated in Figure 6d,e, the growth process was based on the porous NiCo 2 O 4 with an optimized interface for ions transfer, thus a good balance of high discharge capacity and rate performance was kept.…”

Section: Device Designsupporting

confidence: 79%

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Recent Advances in High‐Performance Microbatteries: Construction, Application, and Perspective

Zhu

Kan

et al. 2020

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considered indispensable and stimulate great upsurge in interest on relevant researches. [1-4] Through integrating with multiple functional materials or devices, the miniaturized energy-storage device can power functional systems, such as microactuators, implantable biosensors, and wearable gadgets. [5,6] As far as the performance is concerned, the shift from disposable or nonrechargeable product to a high-energy output device or even complicated system has motivated the improvement of energy storage capability during the past decade. Generally, microsupercapacitor (MSC) possesses the advantages of fast charge/discharge rate and long cycling lifetime, making it possible for some maintenance-free wearable microelectronics and biomedical devices. [7,8] However, the energy storage gap about an order of magnitude still exists in comparison with microbattery (MB), and the insufficient energy supply restricts the widespread applications of MSC in the main power systems. [9] Serving as the primary choice for powering advanced miniaturized devices, MBs ensure sufficient energy density and maintain a stable voltage output. In general, a rechargeable battery consists of cathode, anode, and electrolyte in between, therefore it is the electrode that calls for miniaturization in size ranging from microns to centimeters. The total energy available in a MB generally depends on the active materials loaded on a certain small area. Based on this, some concepts of MB have been proposed, such as ultrathin microelectrode for high volumetric specific energy and somewhat thick microelectrode for high areal specific energy. [10,11] In terms of the dimensional ratio of MB, the thickness of microelectrode gives priority to the transport distance of ions and electrons, thus favoring the improvement in power density when compared with the macro one. [12,13] The decisive factor for the performance of MB is the reaction mechanism, and multiple battery forms have been expanded into miniaturized power supply as the supplement. Among the MBs mainly represented by lithium-ion batteries (LIBs) with organic electrolyte, various alkali metal ion batteries with abundant resources have been explored for possible substitution of lithium. [14-16] From the perspective of intrinsic safety, aqueous batteries have been developed with the merits of both inexpensive electrolyte and relatively higher power density. [17] Additionally, air batteries derived from fuel cells and ideally comprised of infinite O 2 supply for cathode reaction High-performance miniaturized energy storage devices have developed rapidly in recent years. Different from conventional energy storage devices, microbatteries assume the main responsibility for micropower supply, functionalization, and characterization platforms. Evolving from the essential goals for battery design of high power density, high energy density, and long lifetime, further practical demands for microbatteries (MBs) have been raised for the microfabrication technique and device design. Numerous studies have generally...

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Section: Device Designsupporting

confidence: 79%

Section: Device Designmentioning

confidence: 99%

Recent Advances in High‐Performance Microbatteries: Construction, Application, and Perspective

Zhu

Kan

et al. 2020

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“…NiCo 2 O 4 @NiCo 2 O 4 nanocomposites were mainly based on nickel foam by hydrothermal method and annealing technology [20]. The main synthesis process is as follows (Figure 1A).…”

Section: Methodsmentioning

confidence: 99%

Heterostructural NiCo₂O₄ Nanocomposites for Nonenzymatic Electrochemical Glucose Sensing

Yang

Wang

Sheng³

2022

Electroanalysis

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Hierarchical nanocomposites consisting of NiCo2O4 nanorods and NiCo2O4 nanoparticles through a straightforward two‐step hydrothermal process was employed as a working electrode to examine the electrochemical behavior of glucose. The NiCo2O4@NiCo2O4 heterostructures was confirmed by the scanning electron microscopy (SEM), transmission electron microscopy (TEM), X‐ray powder diffractometer (XRD), X‐ray photoelectron spectroscopy (XPS) and electrochemistry analysis. Results indicated that glucose is electrochemically oxidized with improved sensitivity at the NiCo2O4@NiCo2O4 sensor, compared to NiCo2O4 sensors. Analytical parameters such as the optimal potential (0.45 V), linear range from 0.4 μM to 5.2 mM, limit of detection (1.1 μΜ) (S/N=3), stability and repeatability (2.7 %) demonstrate the suitability of the prepared sensor for glucose analysis. Moreover, the proposed sensor could be used for actual samples analysis in complex matrices.

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“…The excellent properties endow carbon materials (carbon nanotubes (CNT), activated carbon (AC) and graphene) with promising potential applications in the electric double-layer capacitance (EDLC) supercapacitors (Wu et al, 2017; Jiang et al, 2018). The electrochemical performances of the supercapacitors largely depend on characteristics of these adopted carbon materials, including morphologies, surface properties, specific surface area, and porous channels (Peng et al, 2014; Liu et al, 2016; Goldfarb et al, 2017; Li et al, 2018; Yang et al, 2018). Therefore, carbon materials with accessible surface area as well as high electron transport efficiency are essential for preparing the carbon-based supercapacitors.…”

Section: Introductionmentioning

confidence: 99%

Construction of Ultrathin Nitrogen-Doped Porous Carbon Nanospheres Coated With Polyaniline Nanorods for Asymmetric Supercapacitors

Wang

Zheng

et al. 2019

Front. Chem.

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Porous carbon materials produced by biomass have been widely studied for high performance supercapacitor due to their abundance, low price, and renewable. In this paper, the series of nitrogen-doped hierarchical porous carbon nanospheres (HPCN)/polyaniline (HPCN/PANI) nanocomposites is reported, which is prepared via in-situ polymerization. A novel approach with one-step pyrolysis of wheat flour mixed with urea and ZnCl 2 is proposed to prepare the HPCN with surface area of 930 m 2 /g. Ultrathin HPCN pyrolysised at 900°C (~3 nm in thickness) electrode displays a gravimetric capacitance of 168 F/g and remarkable cyclability with losing 5% of the maximum capacitance after 5,000 cycles. The interconnected porous texture permits depositing of well-ordered polyaniline nanorods and allows a fast absorption/desorption of electrolyte. HPCN/PANI with short diffusion pathway possesses high gravimetric capacitance of 783 F/g. It can qualify HPCN/PANI to be used as cathode in assembling asymmetric supercapacitor with HPCN as anode, and which displays an exceptional specific capacitance of 81.2 F/g. Moreover, HPCN/PANI//HPCN device presents excellent cyclability with 88.4% retention of initial capacity over 10,000 cycles. This work will provide a simple and economical protocol to prepare the sustainable biomass materials based electrodes for energy storage applications.

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Battery Electrodes: A Dendritic Nickel Cobalt Sulfide Nanostructure for Alkaline Battery Electrodes (Adv. Funct. Mater. 23/2018)

Cited by 10 publications

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Recent Advances in High‐Performance Microbatteries: Construction, Application, and Perspective

Recent Advances in High‐Performance Microbatteries: Construction, Application, and Perspective

Heterostructural NiCo₂O₄ Nanocomposites for Nonenzymatic Electrochemical Glucose Sensing

Construction of Ultrathin Nitrogen-Doped Porous Carbon Nanospheres Coated With Polyaniline Nanorods for Asymmetric Supercapacitors

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Battery Electrodes: A Dendritic Nickel Cobalt Sulfide Nanostructure for Alkaline Battery Electrodes (Adv. Funct. Mater. 23/2018)

Cited by 10 publications

References 0 publications

Recent Advances in High‐Performance Microbatteries: Construction, Application, and Perspective

Recent Advances in High‐Performance Microbatteries: Construction, Application, and Perspective

Heterostructural NiCo2O4 Nanocomposites for Nonenzymatic Electrochemical Glucose Sensing

Construction of Ultrathin Nitrogen-Doped Porous Carbon Nanospheres Coated With Polyaniline Nanorods for Asymmetric Supercapacitors

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Heterostructural NiCo₂O₄ Nanocomposites for Nonenzymatic Electrochemical Glucose Sensing