Collector plates for bipolar electrodes of lead batteries
AssigneeSorapec S.A.
InventorsGuy Bronoel, Noelle Tassin
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Abstract
The invention concerns a composite plate for Pb/PbO2 batteries with bipolar electrodes, characterized by unidirectional electronic conduction provided by metal wires made at least at the surface of lead or lead alloy, arranged in a regular array and coated with a polymer, stable in an acid medium and capable of generating a strong bonding with the lead or lead alloy constituting the wire surface—the wire volume representing only at most 4% of the plate total volume at most. Hence the mass per unit area thereof remains of the order of 15 g/km2.
Claims15
Composite plate, designed for production of Pb/PbO2 batteries with bipolar electrodes, characterised in that the electronic conduction is assured by metal wires, which are constituted at least on their surface by lead or lead alloy, and are disposed according to a regular array, perpendicularly to the surfaces of the plate, these wires being coated by a polymer which is stable in an acid medium, and can create a strong bond with the metal or the alloy which constitutes the surface of the wires, the total volume of the conductor wires being less than 4% of the total volume of the plate.
Dependencies are inferred from the claim text.