| 发明名称 |
Low-temperature activity exhaust sensor |
| 摘要 |
An exhaust sensor comprises a sensing electrode and a reference electrode each in contact with an electrolyte. At least one of the sensing electrode and the reference electrode are formed by depositing an electrode precursor material on an electrolyte precursor material and sintering the combination at a sufficient temperature for a sufficient time to achieve densification of the electrolyte, wherein the electrode precursor material comprises an alkali salt. Electrode patterns having enhanced perimeter ratios are also disclosed. The resulting exhaust sensor is capable of providing a usable output at a reduced operating temperature. |
| 申请公布号 |
US9429540(B2) |
申请公布日期 |
2016.08.30 |
| 申请号 |
US201113698449 |
申请日期 |
2011.06.03 |
| 申请人 |
Delphi Technologies, Inc. |
发明人 |
Clyde Eric P.;Symons Walter T.;Polikarpus Kaius K.;Ward James D.;Nottingham Marsha E. |
| 分类号 |
G01N27/416;G01N27/407 |
主分类号 |
G01N27/416 |
| 代理机构 |
|
代理人 |
Davies Joshua M. |
| 主权项 |
1. An exhaust sensor comprising a sensing electrode and a reference electrode each in physical contact with an electrolyte;
wherein at least one of the sensing electrode and the reference electrode are formed by depositing an electrode precursor material configured as a pattern on an electrolyte precursor material and sintering the combination at a sufficient temperature for a sufficient time to achieve densification of the electrolyte, wherein the electrode precursor material comprises an alkali salt, wherein the perimeter ratio of at least one of the sensing electrode and the reference electrode is greater than unity by an amount sufficient to produce a sensor impedance after sintering less than 200 ohms at a sensor temperature at or below 450 degrees C. |
| 地址 |
Troy MI US |
