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AssigneeRobert Bosch GmbH
InventorsKarl-Hermann Friese, Werner Gruenwald, Kurt Schmid, Claudio De La Prieta, Gerhard Schneider, Hans-Joerg Renz, Harald Neumann, Uwe Glanz, Stefan Kuschel, Ralf Haug, Manfred Moser, Kurt Bayha, Annette Seibold, Carmen Schmiedel, Reiner Schuetz
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An electrochemical measuring sensor having a solid electrolyte, a first electrode exposed to a gas to be measured and a second electrode exposed to a reference gas, with the electrodes preferably being arranged on opposite sides of the solid electrolyte. At least one of the electrodes (16, 20) is provided with a contouring (24) on its side (22) that is exposed to the gas to be measured or to the reference gas, with the contouring being a trench-shaped groove (26) embossed into the surface of the electrode such that the electrode is pressed into the adjacent solid electrolyte in the region of the groove. According to the method, the embossing is done while the electrode and the solid electrolyte are in the non-sintered state, and the sensor is subsequently sintered.
An electrochemical measuring sensor having a solid electrolyte, a first electrode exposed to a gas to be measured and a second electrode exposed to a reference gas, with the electrodes being arranged on the solid electrolyte, and wherein at least one of the electrodes has a contouring on its surface that is exposed to the gas, with the contouring forming at least one trench-shaped groove, and with the trench-shaped groove being embossed into the surface of the electrode such that the electrode is impressed into the adjacent solid electrolyte in the region of the trench-shaped groove.
A method for producing an electrochemical measuring sensor having a solid electrolyte, a first electrode exposed to a gas to be measured and a second electrode exposed to a reference gas, comprising applying at least one of the electrodes essentially layer-shaped on the solid electrolyte in a non-sintered state, contouring the at least one of the electrodes on its surface that is exposed to a gas by embossing at least one trench-shaped groove into the electrode surface while the solid electrolyte and the at least one electrode are in a non-sintered state, and subsequently sintering the solid electrolyte and the at least one electrode.
Dependencies are inferred from the claim text.