Applications > Stationary - Reserve Power - Standby*

Stationary, reserve power or standby refer to applications where the battery energy is kept in reserve and ready for use when needed, as in case of emergency or grid failure. The term “stationary” is most commonly used in Europe and “reserve power” or “standby” in USA/UK. Typical applications are UPS, telecom, renewable energy...

Stationary batteries are normally kept on float. Depending on the situation, the use can vary from pure stationary in case the infrastructure/environment is strong enough, to 1 cycle per day in case of solar batteries, up to several cycles per day in certain countries, when the grid is too weak and the power cuts are frequent.

Flooded :

Separators are an important component of any standby battery. The microporous Amer-Sil separators exhibit all requested properties for optimal results in stationary batteries, with either tubular or flat plates : low electrical resistance, low acid displacement, good mechanical stability and optimized bimodal pore size.
The specific thermal stabilizers used in the Amer-Sil process make the whole separator range well suited for long life applications.

Depending on your needs (higher capacity, longer life,…) or manufacturing process, Amer-Sil corrugated or ribbed separator can be chosen. The most common patterns are TGM or DWGT for flat plate and DWT for tubular plate.

OPzS:

In case of tubular plates, Amer-Sil woven gauntlets are used.

However, in order to get the highest electrical output from the batteries, more and more manufacturers use non-woven gauntlets AS03 or AS03A for stationary flooded batteries: the benefit is a lower electrical resistance and a lower pore size to minimize the active mass loss through the fabric.

Additionally, non-woven reinforced AS03A gauntlet exhibit a really good oxidation resistance to ensure the requested battery longevity as well as an excellent ability to keep the positive active mass well constrained, even in case of frequent cycling.

The combination of non-woven gauntlets with high quality separators allow to increase the overall capacity of batteries to such an extent that the quantity of lead can be reduced, thus leading to important cost savings.

Gel :

For Telecom and UPS applications, AGM batteries are often used, while for solar systems and inverter, tubular flooded is more widespread. While AGM stationary batteries are doing well in the West, they fail very early in developing countries because they are subjected to daily cycling due to the frequent and long lasting grid power shortages. On the other hand, tubular flooded batteries for domestic solar or remote solar stations are efficient but don’t answer anymore to the customers need, who claim for maintenance-free batteries for safety, environment, hard climate and maintenance reasons.

The Amer-Sil separator’s pore size distribution and high volume porosity facilitate oxygen recombination. The tortuous pores inhibit dendrite growth. Therefore, the Amer-Sil separator is ideal for gel applications.

The specific thermal stabilizers used in the Amer-Sil process make the whole separator range well suited for long life applications.

Previous studies have shown that the performances of OPzV cells with Amer-Sil separators are outstanding and can last for more than 20 years in the field.

Depending on your needs (higher capacity, longer life,…) or manufacturing process, Amer-Sil corrugated or ribbed separator can be chosen. The most common patterns are TGM or DWGT for flat plate and DWT for tubular plate.

OPzV :

For customers claiming for maintenance-free batteries (for safety, environment, hard climate and maintenance reasons), the tubular gel batteries (OPzV) are the most appropriate technology.
Due to the high lead price, tubular batteries are no longer  more expensive  compared to the flat positive plate batteries for the same energy outcome per volume.
Additionally, tubular battery demonstrate better cycling life comparing to flat plate battery.

In case of tubular plates, Amer-Sil woven gauntlets are used.
However, in order to get the highest electrical output from the batteries, non-woven gauntlets AS03A  can be used in stationary standby gel batteries: the benefit is a lower electrical resistance and a lower pore size to minimize the active mass loss through the fabric.

Additionally, non-woven reinforced AS03A gauntlet exhibit a really good oxidation resistance to ensure the requested battery longevity as well as an excellent ability to keep the positive active mass well constrained, even in case of frequent cycling.

The combination of non-woven gauntlets with high quality separators allow to increase the overall capacity of batteries to such an extent that the quantity of lead can be reduced, thus leading to important cost savings.

The most common patterns are DWT for 2V tubular cells and SGK for monobloc.

Gel monobloc:

Most of the battery manufacturers in China use Amer-Sil corrugated in gel applications. The critical success factors are, besides the further improved physical properties, the high quality and the very short delivery time for the separator due to local finishing, in any size according to the needs of our customers.