Plastic bonded nickel oxide electrodes, prepared at normal temperature by one-stage rolling onto a current collector of steel net or perforated sheet of a mixture of active mass used in pocket-type electrodes, a conducting component and a PTFE binder, were tested in alkaline electrolyte. At current
Plastic-bonded electrodes for nickel—cadmium accumulators. V. Influence of the current collector and mechanical compression on the current carrying capability of the nickel oxide electrode
✍ Scribed by V. Koudelka; J. Malík; J. Mrha; I. Krejčí; M. Špinka
- Publisher
- Elsevier Science
- Year
- 1981
- Tongue
- English
- Weight
- 540 KB
- Volume
- 6
- Category
- Article
- ISSN
- 0378-7753
No coin nor oath required. For personal study only.
✦ Synopsis
Plastic-bonded nickel oxide electrodes, prepared by rolling a mixture of active material, conductive component and poly(tetrafluoroethylene), were subjected to high rate discharge cycling at 100 mA/cm2 and to an accelerated cycling regime at 20 mA/cm2. The number of cycles, the position of the discharge curve on high rate discharge, and the electrode impedance were found to depend on the quality and size of the collector surface and on the compression acting upon the electrode group in the cell.
📜 SIMILAR VOLUMES
The second discharge step of nickel oxide accumulator electrodes is suppressed in the presence of a Teflon binder and/or cobalt, cerium, or manganese hydroxide, whereas the first discharge step increases. This behaviour is discussed in terms of ohmic resistance effects and semiconducting properties
The oxygen recombination (reduction) rate on plastic-bonded cadmium electrodes in sealed Ni-Cd systems can be increased by using metal screens applied to the gas side of the plastic-bonded cadmium electrode. The metal screen applied should have an optimum geometry (mesh size, wire diameter) to prov