Method of manufacturing a sintered stepped porous transport layer for an electrochemical cell
AssigneeRobert Bosch GmbH
InventorsJonathan BRAATEN, Lei CHENG, Shirin MEHRAZI, Felipe MOJICA, Bjoern STUEHMEIER
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Abstract
A method of manufacturing a porous transport layer (PTL) for an electrochemical cell may include filling a sintering bed with a powder substance, wherein the sintering bed has a top face profile, and applying heat to the sintering bed and the powder substance to form the PTL from the powder substance, the PTL having a first thickness in a first region and a second thickness in a second region, the first thickness is greater than the second thickness.
Claims20
A method of manufacturing a porous transport layer (PTL) for an electrochemical cell, the method comprising:
- filling a sintering bed with a powder substance, wherein the sintering bed has a top face profile;
- and
- applying heat to the sintering bed and the powder substance to form the PTL from the powder substance, the PTL having a first porosity in a first region and a second porosity in a second region, the first porosity is greater than the second porosity.
A porous transport layer (PTL) sintering bed comprising:
- a first dimensional layer thickness;
- and
- a second dimensional layer thickness, the first dimensional layer thickness and the second dimensional layer thickness are cooperatively configured to form a PTL with a perimeter edge thickness less than a center portion thickness of the PTL.
A method of manufacturing a porous transport layer (PTL) for an electrochemical cell, the method comprising:
- filling a sintering bed with a powder substance, wherein the sintering bed has a top face profile;
- and
- applying heat to the sintering bed and the powder substance to form the PTL from the powder substance, the PTL having a first thickness in a first region and a second thickness in a second region, the first thickness is greater than the second thickness.
Dependencies are inferred from the claim text.