Elastic current collector for electrochemical cells

C - Chemistry – Metallurgy – 25 – B

Patent

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Details

C25B 9/04 (2006.01)

Patent

CA 2693114

The invention relates to a current collector for electrochemical diaphragm or membrane-type cells, comprising a layer obtained by interlacing or weaving of a multiplicity of first sets of metal wires with a multiplicity of single metal wires or of second sets of metal wires and provided with substantially parallel corrugations. Such layer is coupled to a planar element consisting of a cloth or a flattened stocking formed by weaving of a single metal wire. The current collector is characterised by a low angular coefficient of the pressure/thickness ratio over a wide range of compression levels.

L'invention se rapporte à un collecteur de courant destiné à un diaphragme électrochimique ou à des cellules de type membrane, comprenant une couche obtenue en entrelaçant ou en tissant une multiplicité de premiers ensembles de fils métalliques avec une multiplicité de fils métalliques uniques, ou bien de seconds ensembles de fils métalliques dotés d'ondulations sensiblement parallèles. Une telle couche est reliée à un élément plan constitué d'un vêtement ou bien d'un bas aplati façonné en tissant un fil métallique unique. Le collecteur de courant est caractérisé par un coefficient angulaire faible du rapport pression/épaisseur sur une large plage de niveaux de compression.

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