Method for making nickel and cadmium electrodes for batteries
US3986893A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 28, 1975 |
| Grant date | Oct 19, 1976 |
| Priority date | — |
| Expiry date | Nov 28, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An improved process for the electrolytic deposition of active material which may be in the form of a suitable metal hydroxide in a porous sintered nickel plaque, which in turn may be utilized to form the positive and/or negative electrodes of a nickel-cadmium battery. The process is characterized by the use of an organic acid such as formic acid as the buffering or support agent which effectively stabilizes the pH of the impregnating solution at an optimized value while at the same time avoids generating any particulate by-product which would otherwise contaminate the solution, thereby providing a virtually unlimited service life. Other advantages to the use of formic acid as the buffering material are disclosed as well.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.