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Electrode plate for an electrochemical cell and having a metal foam type support, and a method of obtaining such an electrode

  • US 5,518,840 A
  • Filed: 06/29/1994
  • Issued: 05/21/1996
  • Est. Priority Date: 12/17/1993
  • Status: Expired due to Fees
First Claim
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1. An electrode plate for an electrochemical cell and having a metal foam support, the plate comprising a plate head and an active portion pasted with active material, wherein said plate head includes a zone of thickness that is reduced relative to the thickness e2 of said active portion and extending along the entire length L of the plate along its top edge, said zone of reduced thickness having a height h1 over a fraction of the length of the electrode plate and a greater height G over the remainder of the length of the electrode so as to form a connection tab, said zone of reduced thickness comprising three thicknesses of non-pasted metal foam compressed against each other:

  • the first thickness comprising a non-pasted zone of the support and the other two thicknesses comprising add-on pieces of metal foam on either side of the non-pasted zone of the support, said add-on pieces having a height h2 overlapping the pasted portion of the support, the zone corresponding to said height h2 having the same non-reduced thickness e2 as the remainder of the electrode plate.

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