Porous current collector with dense electric connection tab for a leaktight electrochemical system
OwnerJérémie Salomon, Djamel Mourzagh +1inventors
InventorsJérémie Salomon, Djamel Mourzagh, Sébastien Solan
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Abstract
A leaktight electrochemical system, comprising a packaging, a porous electrically conductive substrate, forming a current collector and supporting, on at least one of its main faces, at least one continuous pattern of active material of an electrode, and at least one dense electrically conductive tab, connected to the substrate at at least one electrically conductive junction obtained by sewing using at least one electrically conductive thread, the tab supporting, on each of its main faces, at least one sealing tape sealed to the packaging to ensure the leaktight closure thereof.
Claims17
A leaktight electrochemical system, comprising:
- a packaging;
- a porous electrically conductive substrate, forming a current collector and supporting, on at least one of its main faces, at least one continuous pattern of active material of an electrode;
- the electrically conductive porous substrate being based on carbon fibers;
- at least one dense electrically conductive tab, connected to the substrate at at least one electrically conductive junction obtained by sewing using at least one electrically conductive thread, the tab supporting, on each of its main faces, at least one sealing tape sealed to the packaging to ensure the leaktight closure thereof.
A process for preparing a leaktight electrochemical system comprising the following steps:
- a/ producing a continuous pattern of electrode active material on a porous electrically conductive substrate forming a current collector;
- the porous electrically conductive substrate being based on carbon fibers;
- b/ making at least one electrically conductive junction between at least one dense electrically conductive tab and the substrate, by sewing using at least one electrically conductive thread,
- c/ producing, on each of the main faces of the tab, at least one sealing tape intended for leaktight closure of the packaging,
- d/ sealing between the sealing tape and the packaging.
Dependencies are inferred from the claim text.