Mechanism of action of electrochemically active carbons on the processes that take place at the negative plates of lead-acid batteries

Pavlov, D.; Rogachev, T.; Nikolov, P.; Petkova, Gergana

doi:10.1016/j.jpowsour.2008.11.056

Cited by 184 publications

(106 citation statements)

References 8 publications

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“…16 Their overall theory is similar to that put forth by Boden, where during recharge two parallel processes take place with lead being reduced both on lead surfaces within the NAM as well as on carbon surfaces within the NAM. Thus, the effect of the carbon is to increase the overall electrochemically active surface area within the negative plate, thereby increasing its capacity and facilitating more complete recharge.…”

supporting

confidence: 54%

Understanding the function and performance of carbon-enhanced lead-acid batteries : milestone report for the DOE Energy Storage Systems Program (FY11 Quarter 4: July through September 2011).

Ferreira¹,

Rodney²,

Enos³

2011

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supporting

confidence: 54%

Understanding the function and performance of carbon-enhanced lead-acid batteries : milestone report for the DOE Energy Storage Systems Program (FY11 Quarter 4: July through September 2011).

Ferreira¹,

Rodney²,

Enos³

2011

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“…[11][12][13][14][15][16] Moreover, the function of suitable additive to the active material is to enhance the electrical conductivity and chemical stability.…”

mentioning

confidence: 99%

Multi-Walled Carbon Nanotubes Percolation Network Enhanced the Performance of Negative Electrode for Lead-Acid Battery

Saravanan

Sennu

Ganesan

et al. 2012

J. Electrochem. Soc.

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The discharge performance of lead-acid battery is improved by adding multi-walled carbon nanotubes (MWCNTs) as an alternate conductive additive in Negative Active Mass (NAM). We report that MWCNTs added to the negative electrode, exhibits high capacity, excellent cycling performances at 10-h rate, high rate partial state of charge (HRPSoC) cycling and various rates of discharge. It significantly reduces the irreversible lead sulfate on the NAM, increases the active material utilization and improves the electrode performance. The improvement of capacity and cyclic performance of the cell is attributed to the nanoscale dimension of the MWCNTs as additive. Subsequent characterization using high resolution transmission electron microscopy and scanning electron microscopy were carried out to understand the influence of MWCNTs on the negative electrode of lead-acid battery.

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“…Several studies have shown that the PbSO4 buildup on negative electrode can be dramatically reduced by introduction of carbon on the negative active layer [7][8][9][10]. The influence of the carbon additives on the electrochemical performance of Pb-acid battery is governed by their material characteristics such as average particle size, total surface area and electrical conductivity.…”

Section: Introductionmentioning

confidence: 99%

“…The influence of the carbon additives on the electrochemical performance of Pb-acid battery is governed by their material characteristics such as average particle size, total surface area and electrical conductivity. Reports of Pavlov [7,8] shows that the addition of Carbon Black into the negative active layer have improvements on battery performance during the simulated electrical test. Reports of Baca [9] and Fernandez [10]reported that the addition of Graphite and Graphite-Carbon combinations into the negative electrode have significant beneficial effects on the capacity and cyle life of Pb-acid battery.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Investigation of Carbon as Additive to the Negative Electrode of Lead-Acid Battery

Fernandez

Mulimbayan

Mena

2015

MATEC Web of Conferences

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Abstract. The increasing demand of cycle life performance of Pb-acid batteries requires the improvement of the negative Pb electrode's charge capacity. Electrochemical investigations were performed on Pb electrode and Pb+Carbon (Carbon black and Graphite) electrodes to evaluate the ability of the additives to enhance the electrochemical faradaic reactions that occur during the cycle of Pb-acid battery negative electrode. The electrodes were characterized through Cyclic Voltammetry (CV), Potentiodynamic Polarization (PP), and Electrochemical Impedance Spectroscopy (EIS). CV revealed that the addition of carbon on the Pb electrode increased anodic and cathodicreactions by tenfold. The kinetics of PbSO4 passivation measured through PPrevealed that the addition of Carbon on the Pb electrode accelerated the oxide formation by tenfold magnitude. The Nyquist plot measured through EIS suggest that the electrochemical mechanism and reaction kinetics is under charge-transfer. From the equivalent circuit and physical model, Pb+CB1 electrode has the lowest EIS parameters while Pb+G has the highest which is attributed to faster faradaic reaction.The Nyquist plot of the passivated Pb+CB1 electrode showed double semicircular shape. The first layer represents to the bulk passive PbSO4 layer and the second layer represents the Carbon+PbSO4 layer. The enhancements upon addition of carbon on the Pb electrode were attributed to the additive's electrical conductivity and total surface area. The electrochemical active sites for the PbSO4 to nucleate and spread increases upon addition of electrical conductive and high surface area carbon additives.

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Mechanism of action of electrochemically active carbons on the processes that take place at the negative plates of lead-acid batteries

Cited by 184 publications

References 8 publications

Understanding the function and performance of carbon-enhanced lead-acid batteries : milestone report for the DOE Energy Storage Systems Program (FY11 Quarter 4: July through September 2011).

Understanding the function and performance of carbon-enhanced lead-acid batteries : milestone report for the DOE Energy Storage Systems Program (FY11 Quarter 4: July through September 2011).

Multi-Walled Carbon Nanotubes Percolation Network Enhanced the Performance of Negative Electrode for Lead-Acid Battery

Electrochemical Investigation of Carbon as Additive to the Negative Electrode of Lead-Acid Battery

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