Development of gas-phase metallized plaques for electrodes of storage batteries, in particular for nickel oxide electrodes
Abstract
Nickel oxide-electrode plaques for alkaline batteries have been developed by carbon vapor deposition plating fiber plaque substrates with nickel from nickelcarbonyo. Carbon felt proved to be a suitable substrate and large (22 x sq 15 sq cm) and thick 3 - 5 mm) plaques could be made from this material. Three metallization devices were constructed, one of which allowed continuous processing with carbonyl gas flowing through the felt; this improved evenness of nickel distribution. The physical properties of the plaques - structure, electric resistance, heat conduction, gas permeation - approximated by simple models and the corresponding calculations were compared with measurements. Nickel oxide electrodes were made from the plaques and were cycled in half-cell arrangements. The project goals concerning nickel sayings, capacity per unit area and current capability were reached.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- August 1982
- Bibcode:
- 1982STIN...8316950L
- Keywords:
-
- Alkaline Batteries;
- Electrodes;
- Metallizing;
- Nickel Oxides;
- Carbon;
- Comparison;
- Computation;
- Electrical Properties;
- Electrochemistry;
- Felts;
- Substrates;
- Thermodynamic Properties;
- Vapor Deposition;
- Energy Production and Conversion