Method for producing flat fuel cell components, in particular bipolar plates, and fuel component produced according to the method

EP4630217A1Pending Publication Date: 2025-10-15LEONHARDT E K
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Patent Information

Application Number
EP2023828692
Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2022-12-08
Filing Date
2023-12-06
Publication Date
2025-10-15

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Abstract

The invention relates to a method for producing flat fuel cell components (6), in particular bipolar plates, from thermoplastic material with an additional component that has good electrical and thermal conductivity, wherein the flat fuel cell component is produced by means of injection moulding using an injection moulding device (1) which has at least one injection unit (2) and at least one mould unit (3) with a wall surrounding a respective cavity. Efficient production of flat fuel cell components is achieved in that the melted thermoplastic material with the additional component is filled as melt mass by means of the at least one injection unit (2) under pressure into the hollow space of the respective cavity (31) of the at least one mould unit (3), said hollow space corresponding unchanged to the geometry of the fuel cell component, and the heat transfer via the wall (30) is adapted to the thermal conductivity and thermal capacity and filling speed of the melt mass in such a manner that the respective cavity (31) is completely filled with this as moulding mass (5) before the temperature of the melt mass falls below its melting temperature.
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