Gas sensor element
AssigneesAkebono Brake Industry Co., Ltd., Akebono Research and Development Center Ltd.
InventorsShigeyoshi Kobayashi, Zhang Yi Can, Shigeyuki Kimura
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Abstract
In a gas sensor element, an alkali metal ion conductor is provided with a detection electrode comprising an alkali metal carbonate in dissociation equilibrium with CO2 gas on one side thereof and a solid standard electrode on the other side thereof. The alkali metal carbonate is bonded to the alkali metal ion conductor via a bonding agent comprising an alkaline earth metal carbonate which is capable of forming an eutectic low-melting composition with the alkali metal carbonate.
Claims11
A gas sensor element comprising:
- an alkali metal ion conductor;
- a detection electrode comprising an alkali metal carbonate in dissociation equilibrium with CO2 gas, said detection electrode being provided on a first side of said alkali metal ion conductor;
- a solid reference electrode provided on a second side of said alkali metal ion conductor;
- and
- a bonding agent, for bonding said detection electrode comprising the alkali metal carbonate to said alkali metal ion conductor, provided between said detection electrode and said alkali metal ion conductor, said bonding agent comprising an alkaline earth metal carbonate capable of forming an eutectic low-melting composition with the alkali metal carbonate of said detection electrode.
A gas sensor element comprising:
- an alkali metal ion conductor;
- a detection electrode comprising an alkali metal carbonate in dissociation equilibrium with CO2 gas, said detection electrode being provided on one side of said alkali metal ion conductor;
- a solid reference electrode provided on said one side of said alkali metal ion conductor;
- and
- a bonding agent for bonding said detection electrode comprising the alkali metal carbonate to said alkali metal ion conductor, said bonding agent comprising an alkaline earth metal carbonate capable of forming an eutectic low-melting composition with the alkali metal carbonate of said detection electrode.
A method of manufacturing a gas sensor element comprising the steps of:
- forming an alkali metal ion conductor;
- forming a bonding layer on the alkali metal ion conductor;
- and
- forming a detection electrode by placing a separately molded layer comprising an alkali metal carbonate on the bonding layer, wherein the bonding layer comprises an alkaline earth metal carbonate capable of forming an eutectic low-melting composition with said alkali metal carbonate of said detection electrode.
Dependencies are inferred from the claim text.