The article outlines several types of modern classic type stationary lead-acid storage batteries manufactured at BAE battery factory, Berlin, Germany. It also covers main characteristics and manufacturing techniques of batteries, as well as potential applications for various types of BAE batteries.

 

Aleksandr Goryansky, Leading Engineer, ENELT Group Co. Ltd.

 

The drawback of electrical energy is that it is difficult to accumulate. The amount of energy directly accumulated in electrical capacitors is extremely small compared to its total consumption. Generally, energy storage requires the transformation of energy from one form to another. Electrochemical cells which use chemical reaction energy to accumulate and return energy, and can be recharged with electricity are named accumulators.

Stationary lead-acid storage batteries are most often used as emergency power sources in energy, telecom, and production sector, and in every location where a reliable uninterrupted power supply is required.

Classic type stationary storage batteries containing liquid electrolyte, produced at BAE battery factory, Berlin, include the following cells and battery packages:

• BAE Secura OPzS and
• ВАЕ Secura OGi

BAE classic stationary batteries are used as emergency power sources in the uninterruptible power supply systems, for periods of several seconds up to tens of hours.

Areas of application: condensing power plants (nuclear power plants), cogen plants, power substations, oil and gas sector, steel mills, chemical complexes, and telecom systems.

Structurally, classic type batteries represent enclosed vessels made of transparent impact-resistant plastic SAN (styrene-acrylic-nitrile) containing electrodes and electrolyte – a sulfuric acid solution having a density of 1.24 g/cm3. The battery cover has plugs to allow for electrolyte topping up, as well as for analysis sampling.

A grid pasted plate in a corrosion-resistant low antimony alloy is used as negative electrode for both battery types.

Electrodes are separated by microporous separators.

OPzS batteries manufactured by BAE are long life low-maintenance lead-acid batteries with tubular (ironclad) positive plates and liquid electrolyte; they are most suitable for applications requiring long term discharges.

A tubular plate with woven polyester gauntlet and solid grids in a corrosion-resistant alloy PbSb1.6SnSe is used as positive electrode for OPzS batteries. Operational life of BAE OPzS is over 20 yrs.

OPzS battery capacities range from 50 to 3000Ah.

BAE Secura OPzS batteries have been certified by FGC UES.

BAE OGi batteries are long-life low maintenance lead-acid batteries with positive bar plates and liquid electrolyte. Perfect for high discharge currents during short discharge times.

A flat plate with woven polyester gauntlet and solid grids in a corrosion-resistant alloy is used as positive electrode for OGi batteries.

Operational life of BAE Secura OGi is over 18 yrs.

OGi battery capacities range from 25 to 2400 Ah.

BAE batteries are fitted with patented “Panzerpole”: sliding injection moulded terminal pole, of M10 brass insertion pole type. Thanks to plastic coating on the poles, a labyrinth seal and two O-rings, sliding motion is still possible even when the terminal pole “enlarges” during battery cycle life. The battery pole remains 100% gas and electrolyte tight, and the battery cover will not break over the entire service life of the battery. Insulated straps and insulated bolts protect the battery from accidental pole-to-pole fault. Easy access for measurements of e.g. voltage via service ring. This means improved safety and ease of maintenance of BAE batteries.