Method for manufacturing electronic object comprising a body and a porous-membrane-comprising battery
AssigneeThales Dis France SAS
InventorsJean-Christophe Fidalgo, Béatrice Dubois, Laurence Robles
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Abstract
The invention relates to a method for manufacturing a portable electronic-chip-comprising object including a body and a metal-air battery that is integrated into the body, the battery comprising an electrolyte layer and a protective air-porous membrane covering the electrolyte. The method includes a step of forming at least one air-supply duct extending from the protective membrane to an air source. An air-porous material is contained in the duct and completely blocks the duct at least in one place on its course. The invention also relates to the object corresponding to this method.
Claims12
A process for manufacturing a smart card comprising a body and a metal-air battery integrated in the body, said battery comprising an electrolyte layer and an air-permeable porous protective membrane covering the electrolyte layer,
- said process comprising a step of forming two lateral air supply ducts extending from the protective membrane at two opposite lateral ends of the battery to an air source outside the smart card, wherein a second porous air or oxygen-permeable material, distinct from said air-permeable porous protective membrane, is contained in said ducts and completely closes said ducts along its path, at least in places along its path,
- said process further comprising a step of forming in said body a cavity opening into a surface of the body and a step of placing an electronic chip module in the cavity, said battery placed under the chip module, and arranging a conduit in a space at a bottom wall of the cavity,
- wherein said two lateral air supply ducts extend upward and perpendicular, with respect to a top of the smart card, along open vertical walls of said cavity,
- wherein said conduit extends parallel along the bottom wall of the cavity, with respect to a top of the smart card, and continues perpendicular up and around the battery and chip module to the air source,
- whereby said two lateral air supply ducts and said conduit provide said battery access to said air source for powering said smart card via electrochemical reaction.
A portable smart card comprising
- a body and a metal-air battery integrated in the body, said battery comprising an electrolyte layer and an air-permeable porous protective membrane covering the electrolyte layer;
- two lateral air supply ducts extending from said protective membrane at two opposite lateral ends of the battery to an air source outside the smart card, and an air-permeable porous material, distinct from said air-permeable porous protective membrane, contained in said duct and completely closing said ducts along its path, at least in places along its path
- a cavity opening into a surface of the body;
- an electronic chip module in the cavity, said battery under the chip module;
- and
- a conduit arranged in a space at a bottom wall of the cavity,
- wherein said two lateral air supply ducts extend upward and perpendicular, with respect to a top of the smart card, along open vertical walls of said cavity,
- wherein said conduit extends parallel along the bottom wall of the cavity with respect to a top of the smart card, and continues perpendicular up and around the battery and chip module to the air source,
- whereby said two lateral air supply ducts and said conduit provide said battery access to said air source for powering said smart card via electrochemical reaction.
Dependencies are inferred from the claim text.