Honeycomb structure and method for production of said structure
AssigneeCommissariat a l'Energie Atomique
InventorStephane Revol
Life of this patent
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Abstract
The invention concerns an alveolar structure (1) comprising at least one alveolar zone (2a, 2b) partially delimited by an associated leak tight surface (4a, 4b) . According to the invention, each alveolar zone (2a, 2b) is formed of a plurality of metallic layers (8) superimposed parallel to the associated leak tight surface (4a, 4b), each metallic layer (8) comprising a network of passages (10) opening out on either side of said metallic layer (8). The invention further concerns a method for manufacturing said alveolar structure (1) Application to fuel cells and heat exchangers.
Claims12
A bipolar plate for a fuel cell comprising:
- at least two alveolar zones juxtaposed with a common base plate, each zone being partially delimited by an associated leak tight surface of the common base plate,
- wherein each alveolar zone is formed of a plurality of metallic layers superimposed parallel to the associated leak tight surface, each metallic layer comprising a network of passages opening out on either side of said each metallic layer.
A method of manufacturing an alveolar structure including at least one alveolar zone partially delimited by an associated leak tight surface.
- wherein each alveolar zone is formed of a plurality of metallic layers superimposed parallel to the associated leak tight surface, each metallic layer comprising a network of passages opening out on either side of said each metallic layer, wherein each metallic layer is formed by:
- depositing a layer of metallic powder;
- partially solidifying by laser the layer of deposited metallic powder, leading to formation of solidified parts and non-solidified parts, the solidified parts defining a perimeter of the network of passages of the metallic layer.
Dependencies are inferred from the claim text.