Development of a valve-regulated lead−acid battery with thin tubular positive plates for improved specific energy and optimization for low charge-factor operation

Dyson, I. N.; Griffin, P.J.

doi:10.1016/s0378-7753(03)00031-4

Cited by 8 publications

(4 citation statements)

References 2 publications

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“…The total thickness of the device aer compression was effective for minimizing the contact effect and to obtain low resistance for the device. 23,24 Detection of the so pack was carried out with an electrochemical work station. Galvanostatic charge and discharge was performed to calculate the capacitance, energy density and power density of the so pack.…”

Section: Methodsmentioning

confidence: 99%

Few-walled carbon nanotube-enhanced activated carbon supercapacitor performance in organic electrolyte at 4 V

Zhou

2019

RSC Adv.

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Section: Methodsmentioning

confidence: 99%

Few-walled carbon nanotube-enhanced activated carbon supercapacitor performance in organic electrolyte at 4 V

Zhou

2019

RSC Adv.

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“…However, softening and shedding of PAM in flat plates remain causes for gel battery failure. Since softening and shedding of the active materials in tubular positive plates can be alleviated or prevented, lead-acid batteries with tubular positive plates may present flatter discharge curves, longer cycle life and larger capacity than those with flat plates [1][2][3][4][5][6]. It is expected that gel batteries with tubular positive plates can display excellent performance.…”

Section: Introductionmentioning

confidence: 99%

Application of a novel gelled-electrolyte in valve-regulated lead-acid batteries with tubular positive plates

Zheng

Wang

Xian-xian³

et al. 2007

J Appl Electrochem

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A polysiloxane-based gel electrolyte (PBGE) was prepared and used as a novel gel electrolyte in valveregulated lead-acid (VRLA) batteries with tubular positive plates. Cyclic voltammetry (CV) and scanning electron microscopy (SEM) indicated that PBGE is more stable than fumed-silica gel electrolyte (FSGE). The properties of AGM (absorptive glass mat)-PBGE and PVC-FSGE tubular batteries were investigated by electrochemical techniques. The results showed that the AGM-PBGE tubular batteries have higher initial discharge capacity and better high-low temperature performance than PVC-FSGE. The improved electrochemical performance of the AGM-PBGE batteries may result from the high charge efficiency and the open three-dimensional network structure of PBGE. SEM and X-ray diffraction (XRD) spectroscopy showed that PBGE facilitates the conversion of the active-mass to lead dioxide, presenting a high formation efficiency. The addition of PBGE instead of FSGE not only simplifies the manufacturing process of tubular gel batteries, but also improves the utilization efficiency of positive active material (PAM), thus enhancing the battery performance and reducing the manufacturing cost.

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“…Besides compressing the plate stack, a usual way of prolonging the cycle life is to use more PAM, which makes the PAM utilization even lower [19]. The tubular positive plate design can solve the problem of swelling and shedding of PAM [20].…”

Section: Introductionmentioning

confidence: 99%

In situ electrochemical scan to study the behavior of the asymmetric (single-side) pasted positive plate as used in automotive lead-acid batteries

Guo

2005

J Appl Electrochem

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In situ electrochemical scan to study the behavior of the asymmetric (single-side) pasted positive plate as used in automotive lead-acid batteries Abstract The performance of a asymmetric (single-side) pasted positive plate was studied by measuring the current density and potential distributions on both sides of the plate. It was found that the current densities on both sides are almost the same during the early discharge at the 3 C discharge rate. As the discharge proceeds, the current decreases gradually on the non-pasted side and increases on the pasted side. Since more active mass exists on the pasted side, the matrix resistance is higher, causing the polarization to increase by 55-90 mV at the 3 C discharge rate. On the non-pasted side, the active mass undergoes a deeper depth of discharge (DOD). This leads to the shedding of active mass, which shortens the battery life. Since the positive grid on the non-pasted side is exposed, its corrosion rate is faster.

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Development of a valve-regulated lead−acid battery with thin tubular positive plates for improved specific energy and optimization for low charge-factor operation

Cited by 8 publications

References 2 publications

Few-walled carbon nanotube-enhanced activated carbon supercapacitor performance in organic electrolyte at 4 V

Few-walled carbon nanotube-enhanced activated carbon supercapacitor performance in organic electrolyte at 4 V

Application of a novel gelled-electrolyte in valve-regulated lead-acid batteries with tubular positive plates

In situ electrochemical scan to study the behavior of the asymmetric (single-side) pasted positive plate as used in automotive lead-acid batteries

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