초록 ▼

The electrode plate includes an active portion that is pasted with active material, and a plate head that is made up of three layers of compressed metal foam comprising: a non-pasted portion of height G of the support of the electrode plate; and two strips of non-pasted metal foam of height R on eit

The electrode plate includes an active portion that is pasted with active material, and a plate head that is made up of three layers of compressed metal foam comprising: a non-pasted portion of height G of the support of the electrode plate; and two strips of non-pasted metal foam of height R on either side of the non-pasted portion of height G of the support and also extending for an overlap height h2 over the pasted portion of the support. The plate head includes a zone of reduced thickness including a portion that is maximally compressed, and a transitional portion between said maximally compressed portion and the remainder of the electrode which is of thickness e2. A portion of said plate head forms a connection tab. The method of obtaining the electrode consists in simultaneously rolling all three layers of metal foam in the plate head, and then in cutting matter away from the plates so as to obtain respective connection tabs.

대표청구항 ▼

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

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.