Sensor element for an electrochemical sensor
OwnerDetlef Heimann, Thomas Wahl +1inventors
InventorsDetlef Heimann, Thomas Wahl, Torsten Handler
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Abstract
A sensor element for an electrochemical sensor for determining a physical variable of a gas mixture, for example, for a lambda probe for determining the oxygen concentration in the exhaust gas of an internal combustion engine, having a composite of sheets, which lie on top of each other, made from a solid electrolyte. The composite may have at least one electrochemical cell, including two electrodes, which may be applied to a solid electrolyte, as well as an integrated heater element. In order to achieve an additional electric insulation of the heater element, the electrochemical cell and the heater element may be connected to one another via an insulating, non-ion conductive sheet binder.
Claims18
A sensor element for an electrochemical sensor, comprising:
- a composite of sheets disposed one on top of another and made of an ion-conductive solid electrolyte, the composite including at least one electrochemical cell having a first electrode separated from a second electrode by a solid electrolyte, a heater element disposed between the first and second electrodes, and a sheet binder disposed between the electrochemical cell and the heater element, wherein the sheet binder is electrically insulating and non-ion conductive.
The sensor element according to claim 13, wherein the solid components include solvents and organic ingredients.
The sensor element according to claim 15, further comprising:
- a sealing frame made from a solid electrolyte and configured to enclose the surrounding insulation at edges of the surrounding insulation.
Dependencies are inferred from the claim text.