Plate electrode comprising metallic covering for alkaline electrochemical elements and process for its production
US4749635A · kind A · utility
Inventors
Key dates
| Filing date | Jun 26, 1985 |
| Grant date | Jun 7, 1988 |
| Priority date | — |
| Expiry date | Jun 26, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In this plate electrode for use in alkaline electrochemical elements or disposable batteries and accumulators, the cover-walls are formed by two metal fabric pieces (1, 2) of plate size. A netting (3), made of thermoplastic material, is located in between. The netting apertures form squares (7) for receiving the active composition (6). In production, the plate, constructed in this way, is compressed over the whole surface under the influence of heat, so that the metal fabric pieces are fused into the plastic netting. The active composition is compressed at the same time. The metal fabrics consist of uniform wire material, especially of nickel. In comparison with conventional pocket plates comprising pockets produced or assembled from perforated metal sheet, the present plate electrode possesses advantages with respect to its quality features and production costs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.