Studies of the pulse charge of lead-acid batteries for PV applications

Kirchev, Angel; Perrin, Marion; Lemaire, Elisabeth; Karoui, F. Sahtout; Mattera, F.

doi:10.1016/j.jpowsour.2007.10.095

Cited by 20 publications

(10 citation statements)

References 25 publications

(39 reference statements)

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“…when the charge current is switched off the charge reaction continues due to the energy stored in EDL and vice versa, when the discharge current is switched off the formation of PbSO 4 continues because of the recharge of the EDL. A detailed discussion on this topic has been done in the first part of this work [1]. Therefore the analysis of the impedance spectrum of the positive plate will be done for two main cases-for PSoC during the charge and during the discharge.…”

Section: Processes On the Positive Plate During The Open Circuit Staymentioning

confidence: 99%

“…In the first part of this work it was found that the electrochemical double layer (EDL) on the surface of the lead dioxide, constituting the positive active material (PAM) of the lead-acid battery, plays a very important role in the mechanism of the pulse charge [1]. Using the concept of the average double layer particularly the PbO 2 /electrolyte interphase.…”

Section: Introductionmentioning

confidence: 99%

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Studies of the pulse charge of lead-acid batteries for PV applications

Kirchev

Delaille

Perrin

et al. 2007

Journal of Power Sources

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Section: Processes On the Positive Plate During The Open Circuit Staymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Studies of the pulse charge of lead-acid batteries for PV applications

Kirchev

Delaille

Perrin

et al. 2007

Journal of Power Sources

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“…The accumulation of hard crystals significantly hinders current distribution and electrolyte diffusion and limits cycle life. The State-of-Charge (SoC) of the battery is related to the electrochemical double layer (EDL) structure as reported by Kirchev et al 11,[22][23][24] It was found that the formation of PbSO 4 could modify the EDL structure and reduced the electroactive surface area that participates in the charge and discharge processes. 10,11 It is well-recognized that carbon additives are the most widely used materials in controlling sulfation.…”

Section: Introductionmentioning

confidence: 88%

Enhanced cycle life of lead-acid battery using graphene as a sulfation suppression additive in negative active material

et al. 2015

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In this article, we report the addition of graphene (Gr) to negative active materials (NAM) of lead-acid batteries (LABs) for sulfation suppression and cycle-life extension. Our experimental results show that with an addition of only a fraction of a percent of Gr, the partial state of charge (PSoC) cycle life is significantly improved by more than 140% from 7,078 to 17,157 cycles. The particle size on a charged Pb-graphene (PbG) plate after the PSoC test is also found to be reduced by around 25% when compare with a Pb plate. Charge and discharge densities measurements from the cyclic voltammetry (CV) test show an enhancement with the addition of Gr, indicating an improvement in the reversibility reaction of PbSO4. An electrochemical model, which takes into account of reduced interfacial resistance, improved charge transfer and enhanced electroactive surface area, is proposed to elucidate the role of Gr throughout the course of a PSoC cycle test. It is demonstrated that experimental results are aligned with our proposed model with enhanced cycle life performance, where PbG plate maintains a higher electroactive surface area for adsorption and desorption of Pb 2+ ions at the interface between active material and electrolyte occurs in parallel to reduced charge transfer.

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“…The parameters for the charge algorithm consisted of a 1 Hz frequency, which was found to be the optimum value [16,17], a 50% duty cycle and a 2C 30 current. This charging protocol would be expected to completely charge the electrode in 1 h if no side reactions occur.…”

Section: Susceptibility To Fast Chargementioning

confidence: 99%