International Telecommunication Systems Operation [ ITSO ]

International Telecommunication Systems Operation [ITSO]

Vented Nichel-Cadmium Batteries

Applications

FNCŽ batteries are used in a great variety of applications:

In power stations and transformer plants

In emergency power supply

In telecommunication installations

In off-the-line power supply plants and when using regenerative energies

In signalling and control systems

In starting emergency power units

Product features

Electrodes
The positive and negative electrodes consist of nickel fibre-structured elements with graphite-free active material. The three-dimensional fibre structure comprising a nickel fibre composite is extremely elastic. Mechanical stresses and volume changes during charge/discharge cycles are therefore absorbed by the electrodes.

Separators
The positive electrodes are enveloped in microporous separators. The separators are designed to ensure that the electrodes are properly separated and that they show low internal resistance corresponding to the level of stress they are subjected to.

Cell connectors
The cell connectors are screwed onto the cells. This makes it easy to fit the connec- tors. Fully insulated connectors are supplied on request. The connectors consist of nickel-plated copper with a very low resistance.

Electrolyte
The electrolyte comprises dilute potassium hydroxide with a density of 1.19 kg/I at 20°C. The cells are delivered in a filled and charged state. For sea or air transport, delivery in a dry, discharged condition is recommended. The electrolyte is then delive- red separately packed and ready to fill or as dry electrolyte.

Container
The battery container is made of high resistant translucent polypropylene (PP). This facilitates checking the electrolyte level. Material variations are possible. Container and lid are welded together to prevent gas and electrolyte escaping. Special O-rings ensure that the pole bushings are sealed properly.

Vent plugs
Back-fire resistant flip-top vent plugs are standard delivery.

Attributes

With continuous battery power supply with float charge FNCŽ batteries have a service life of up to 20 years. Because of the graphite-free electrodes, no electrolyte change is necessary during their entire service life. The FNCŽ battery is also distinguished by its cycle resistance (over 2000 cycles under DIN), its extremely low internal resistance and a high energy density.

Advantages

Apart from long maintenance intervals and low life-cycle costs, the optional AquaGenŽ vent plug provides an added advantage: At the corresponding charge voltage water need only be topped up once during the entire service life.

The dense FNCŽ electrode structure (more than 300 m/m3) with a volume of 90% left for the active material leads to low internal resistance and thus longer maintenance intervals, high current loads and the option of applying lower capacities as compared to other systems,.

Ž electrodes comprise pure active materials without any additives which makesThe FNC an electrolyte change superfluous. This leads to a significant reduction in operating costs and a minimal burden on the environment. The high elasticity of the conducting material ensures a high cycle resistance as well as a long service life. The thickness of the electrodes can be varied from 0.8 to 10 mm, so all different performance types of batteries (X, H, M, L according to IEC 623) can be built based on the fibre structured electrode. The FNC cell thus makes for the best battery for every application.

Recycling of old battery installations

NC battery installations are recycled in Germany by Hoppecke according to the corresponding environmental protection requirements.

FOR MORE INFORMATION CONTACT OUR MARKETING DEPT