Alkaline batteries are based on a zinc-oxygen electrochemical couple. They use atmospheric oxygen (cathode) for producing depolarization. Anode is the large surface area zinc powder dispersed in a potassium hydroxide solution.
Discharge Properties
The nominal open-circuit voltage: 1.5 V per cell.
The initial closed-circuit voltage at 20°C is 1.35V per cell (for 20% higher compared to the other battery systems).
Well suited to continuously supplying up to 5.4 watts load in the 1.5 to 24V range.
Range of capacity: 20Ah - 2000Ah.
The typical end voltage per cell: 0.9V.
The reduction of voltage during discharging the battery is extremely low.
The operating voltage is lower at the higher discharge currents, as it is typical with all battery systems.
Energy Density
Higher energy density and specific energy (and weight) ratio than other types of battery (because atmospheric air is one of the battery reactants): approx. 360Wh/kg.
Other Advantages
Require no maintenance and no special procedures before being ready to use.
Activated by removing label or stopper on the top of the battery.
Safe to handle, without any risk of leakage on fixed or moving installations.
Storage life: 2 years (capacity loss for each year is just 5%).
Can be satisfactorily used at temperatures ranging from -20°C to +45°C.
Variations in atmospheric humidity have no significant effect on their operating performance.
SOLUTIONS
+THINK +CONSTRUCT
Main Uses
- Road traffic and railway
signalization - Security systems
- Electric fencers
- Parking meters and ticket
machines - Telecommunications
- Navigation aids
- Tailor made batteries
- etc ...