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Chodzież, Poland

Czerwinski A.,Industrial Chemistry Research Institute | Czerwinski A.,University of Warsaw | Obrbowski S.,Industrial Chemistry Research Institute | Obrbowski S.,University of Warsaw | And 11 more authors.
Journal of Power Sources | Year: 2010

Bare reticulated vitreous carbon (RVC) plated electrochemically with thin layer of lead was investigated as a negative plate carrier- and current-collector material for lead-acid batteries. Hybrid flooded single cell lead-acid batteries containing one negative plate based on a new type (RVC or Pb/RVC) of carrier/current-collector and two positive plates based on Pb-Ca grid collectors were assembled and subjected to charge/discharge tests (at 20-h and 1-h discharge rates) and Peukert's dependences determination. The promising results show that application of RVC as carrier- and current-collector in negative plate will significantly increase the specific capacity of lead-acid battery. © 2009 Elsevier B.V. Source


Czerwinski A.,Instytut Chemii Przemyslowej | Czerwinski A.,University of Warsaw | Obrbowski S.,Instytut Chemii Przemyslowej | Obrbowski S.,University of Warsaw | And 11 more authors.
Journal of Power Sources | Year: 2010

Reticulated vitreous carbon (RVC®) and RVC® plated with lead were investigated as carriers for the negative electrode of lead-acid cell. The RVC® and Pb/RVC® carriers were pasted with active paste (received from JENOX Ltd., Polish producer of lead-acid batteries) and prepared to be used in lead-acid cell. Comparative study of electrodes based on RVC® and Pb/RVC® has been done using constant-current charging/discharging, constant-potential discharging and cycling voltammetry measurements. Scanning electron microscopy (SEM) was employed to determine the morphology of the lead layer deposited on the RVC surface. Hybrid flooded single lead-acid cells containing one negative electrode, based on new type of carrier (RVC® or Pb/RVC ®), sandwiched between two positive electrodes, based on the Pb-Ca grids, were assembled and subjected to electrochemical tests. It has been found that both materials, RVC® and Pb/RVC®, can be used as carriers of negative electrode, but the latter seems to have better influence on the discharge performance. © 2009 Elsevier B.V. Source

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