Alcatel

Saft

Christian Dupuy

Jean-Pierre Freluche

Georges Caillon

Olivier Amiel

Philippe Charollais

Christian Pineau

In&eacute;s Belkhir

Pierre Saunier

R&eacute;mi Najean

St&eacute;phane Babin

Jean-Yves Kerybin

J&eacute;r&ocirc;me Mazalrey

Jerome Foulquier

Nathalie Pineau

In the production of a secondary electrochemical generator comprising a container with a casing () and a cover (), the stage of electric coupling of a connection to a current output is designed so that the length of the connection does not allow it to come into contact with the current output when the cover is not in its closed position. This stage comprises the following steps: a first end () of the connection is electrically connected to an electrode (), the cover is placed on the casing in order to close the container so that the second end () of the connection is in physical contact with the current output which is electrically insulated from the casing, and an electric current is applied between the casing and the current output so as to weld the second end of the connection to the current output.

Method of electric coupling of a connection to a current output

The invention provides an electrode comprising a porous three-dimensional conductive support containing an electrochemically active material, said support having at least a first edge connected to a connection piece and at least a second edge substantially parallel to said first edge, and means for preventing said active material disposed along said second edge from moving. Said means is selected from: a piece having a U-shaped fold placed stride said second edge; a surface covering; and treatment to modify the texture of said support. The electrode is used as a positive electrode in a second electrochemical cell of the nickel metal hydride type.

Non-sintered electrode with three-dimensional support for a secondary electrochemical cell having an alkaline electrolyte

An electrode comprises a porous three-dimensional conductive support and at least one reinforcing metal band fixed along a longitudinal edge portion of the support and having a coefficient of elongation to rupture equal to at least 20% in a direction parallel to the edge portion of the support. Two longitudinal edge portions of the band are bent against the same face of the band, at least part of whose surface is pressed against the support.

Spiral-wound electrode with three-dimensional support

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Fontenille, France

Christian Dupuy