Method of manufacturing an electrochemical device
US4798693A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 3, 1987 |
| Grant date | Jan 17, 1989 |
| Priority date | — |
| Expiry date | Aug 3, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/417
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of manufacturing an electrochemical device having an electrochemical cell including a planar solid electrolyte body and at least two electrodes disposed in contact with the solid electrolyte body. The method comprising: forming a first unfired ceramic layer on one side of an unfired structure of the electrochemical cell, the first unfired ceramic layer being given a porous structure by firing thereof; forming a second unfired ceramic layer on the other side of the unfired structure of the electrochemical cell, the second unfired ceramic layer having substantially the same property of firing shrinkage as the first unfired ceramic layer; and co-firing the unfired structure of the electrochemical cell, the first and second unfired ceramic layers. The two unfired ceramic layers may be formed on opposite sides of an unfired structure of an electrochemical cell assembly which includes plural cells, for example, an oxygen pumping cell and an oxygen sensing cell. In this case, another unfired ceramic layer may be formed between the unfired structures of the two cells. The electrochemical device manufactured by the method does not have a unfavorable warpage that would arise due to …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.