Novel core–shell structure of a lead-activated carbon (Pb@AC) for advanced lead–acid battery systems

Dhanabalan, K.; Thangarasu, Sadhasivam; Eun, Jin Jae; Shim, Jinyoung; Jeon, Dong-Hoon; Roh, Sung‐Hee; Jung, Ho‐Young

doi:10.1007/s10854-017-6804-y

Cited by 15 publications

(5 citation statements)

References 17 publications

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“…The chemical composition of PbO/GO composites is further examined by X-ray photoelectron spectroscopy (XPS). The deconvoluted XPS spectra of Pb 4f show that Pb in the PbO-GO-N500-UP additive is in the form of Pb–O bond (Figure b), which is consistent with the Pb(II) oxide in XRD results (Figure b). The O 1s XPS spectra can be deconvoluted into four components, Pb–O (∼530.1 eV), −OH (∼531.7 eV), C–O (∼532.5 eV), and C=O (∼534.8 eV) (Figure c and Figure S2a).…”

Section: Results and Discussionsupporting

confidence: 78%

“…To this end, various carbon materials are modified by the surface functional groups to alter their surface chemistry for the repressive hydrogen evolution process. , For example, activated carbon (AC) modified by alkaline surface functional groups can inhibit the hydrogen evolution reaction (HER), while this process can be promoted by acidic surface functional groups . Alternative strategies to inhibit hydrogen evolution of negative plates are employing carbon composites , or mixtures composed of metal oxides (ZnO, PbO, etc.) with higher hydrogen evolution overpotentials (η H ) .…”

Section: Introductionmentioning

confidence: 99%

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Lead Oxide Enveloped in N-Doped Graphene Oxide Composites for Enhanced High-Rate Partial-State-of-Charge Performance of Lead-Acid Battery

Yang

Gong

et al. 2018

ACS Sustainable Chem. Eng.

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Lead oxide/graphene oxide composites are prepared by a pyrolysis method followed by ultrasound pickling treatment to improve the high-rate partial-state-of-charge (HRPSoC) performance of lead-acid battery for hybrid-electric vehicles. Employing this composite in the negative plate can effectively alleviate the aggregation of PbSO4 crystals and accelerate the redox processes of lead species; the plate-specific capacitance and HRPSoC cycle life of lead-acid battery are thus significantly enhanced with the good inhibition of the hydrogen evolution process. The fewer carboxyl groups on N-doped graphene oxide and the undissolved lead oxide nanoparticles are considered to contribute to the enhanced cycle life performance. As a result, this lead oxide/graphene oxide composite holds potential application in the negative plate of lead-acid battery with high capacitance and long cycle life.

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Section: Results and Discussionsupporting

confidence: 78%

Section: Introductionmentioning

confidence: 99%

Lead Oxide Enveloped in N-Doped Graphene Oxide Composites for Enhanced High-Rate Partial-State-of-Charge Performance of Lead-Acid Battery

Yang

Gong

et al. 2018

ACS Sustainable Chem. Eng.

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“…[32] Very likely these Pb 0 species exist at the surface or grain boundaries of perovskites,p ossibly as ac ore-shell structured cluster. [33] However,further studies are needed to provide more insights on the microscopic picture of how and where Pb 0 is located in the degraded perovskites.F or example,a ss hown in Figure 3a,b,t he possibility to form interstitial-Pb (Pb i )w as proposed, Pb i would co-exist in the perovskite lattice and severely degrade device performance. [34] Theother important type of defect is I 2 .D uring degradation, I À can be released from its lattice because I À can be easily oxidized to I 0 (e.g., I 2 in Figure 1b,c).…”

Section: Defects In Metal Halide Perovskitesmentioning

confidence: 99%

Reducing Detrimental Defects for High‐Performance Metal Halide Perovskite Solar Cells

2020

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In several photovoltaic (PV) technologies, the presence of electronic defects within the semiconductor band gap limit the efficiency, reproducibility, as well as lifetime. Metal halide perovskites (MHPs) have drawn great attention because of their excellent photovoltaic properties that can be achieved even without a very strict film‐growth control processing. Much has been done theoretically in describing the different point defects in MHPs. Herein, we discuss the experimental challenges in thoroughly characterizing the defects in MHPs such as, experimental assignment of the type of defects, defects densities, and the energy positions within the band gap induced by these defects. The second topic of this Review is passivation strategies. Based on a literature survey, the different types of defects that are important to consider and need to be minimized are examined. A complete fundamental understanding of defect nature in MHPs is needed to further improve their optoelectronic functionalities.

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“…Currently, diverse carbon materials are added to suppress the sulfation of the negative plates, such as carbon black [13][14][15], graphite [16,17], activated carbon [18][19][20], carbon nanotubes [21,22], and graphene [23][24][25], which turns out to be an effective solution. The effect of the addition of carbon materials into LABs was studied by Pavlov et al, indicating that the additive is available to reduce the average pore size of negative active material (NAM).…”

Section: Introductionmentioning

confidence: 99%

Positive Effects of Highly Graphitized Porous Carbon Loaded with PbO on Cycle Performance of Negative Plates of Lead-Acid Batteries

Xie

et al. 2021

Applied Sciences

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Carbon materials are one of the most important additives used in lead-acid batteries (LABs) to solve irreversible sulfation. Being the next generation additive for LABs, they exhibit more excellent performance. The addition of carbon materials to negative active material (NAM) is used to enhance the performance of batteries. In this paper, the composite of lead oxide and carbon (LC) was prepared by the pyrolysis of a mixture of highly graphitized porous carbon (HPC) and PbCO3. Compared with the control cell, the initial specific discharge capacity was increased by 16.5% when LC material was added to NAM. Finally, a possible mechanism for the improvement of the cycle performance of LC cell was proposed. The adoption of LC material can eliminate the difference in density between Pb and C, and thus make them evenly mixed. The uniformly dispersed HPC can promote electrolyte circulation and effectively limit the overgrowth of irreversible PbSO4. At the same time, the presence of -Pb-COO chemical bond can strengthen the stability of lead-carbon electrodes.

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Novel core–shell structure of a lead-activated carbon (Pb@AC) for advanced lead–acid battery systems

Cited by 15 publications

References 17 publications

Lead Oxide Enveloped in N-Doped Graphene Oxide Composites for Enhanced High-Rate Partial-State-of-Charge Performance of Lead-Acid Battery

Lead Oxide Enveloped in N-Doped Graphene Oxide Composites for Enhanced High-Rate Partial-State-of-Charge Performance of Lead-Acid Battery

Reducing Detrimental Defects for High‐Performance Metal Halide Perovskite Solar Cells

Positive Effects of Highly Graphitized Porous Carbon Loaded with PbO on Cycle Performance of Negative Plates of Lead-Acid Batteries

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