What are the similarities and differences between the front terminal battery and the telecom-grade front terminal valve-regulated lead-acid battery?

To achieve the goals of saving land, materials, and reducing costs, China Mobile launched the "Green Action Plan", and the use of front terminal batteries has become an important task in its action matrix. There are obvious similarities and differences between the front terminal battery and the telecom-level front terminal valve-regulated lead-acid battery in the structural design. The following are introduced from six aspects:

Here is the content list:

1.appearance

2.Standardized size

3.Positive plate structure

4.Type of partition

5.Electrolyte fixing method

6.Electrolyte

appearance

The front terminal battery and telecom-grade front terminal valve-regulated lead-acid battery have a long and narrow shape design. The single unit is a 2×3 structure. The large surface of the electrode plate is parallel to the shell and faces outward, which is good for the front terminal battery.

Standardized size

The front terminal battery has the same maximum size as the telecom-grade front-terminal valve-regulated lead-acid battery, and is specially designed for 19-inch (FTB) and 23-inch (FTA) power cabinets. Generally, 4 pieces form a 48 V battery pack. Both the positive and negative terminals are located at the front of the front terminal battery, which is convenient for installation and maintenance, saving space, and improving the reliability of the system at the same time.

Positive plate structure

The positive plate of the front terminal battery can be made into a paste type or tube type, while the positive plate of a telecommunication-grade front terminal valve-regulated lead-acid battery can only be made into a paste type.

Type of partition

The separator in the front terminal battery pole group adopts the PVC-SiO2 polymer separator produced by advanced technology, while the telecommunication-grade front terminal valve-regulated lead-acid battery adopts the ultrafine glass fiber cotton partition.

Electrolyte fixing method

The front terminal battery electrolyte is fixed in colloidal form by nano-grade fumed silica, sulfuric acid electrolyte, and various additives, and is liquid when injected, which can fill all the space in the front terminal battery.

The gel electrolyte is in contact with the front terminal battery plate and the battery casing at the same time, which is beneficial to heat conduction. The telecom-grade front-terminal valve-regulated lead-acid battery electrolyte is adsorbed in the porous glass wool separator, and it must be unsaturated. There is a gap between the pole group, the partition board, and the shell, and the heat conduction is blocked.

Electrolyte

The front terminal battery uses gel electrolytes, the electrolyte volume is 10%-15% more than the valve-regulated lead-acid battery design, and the average electrolyte density is 1.27～1.29 g/cm3, which is less corrosive to the electrode plate.

The front terminal battery has a long life. The telecom-grade front-terminal valve-regulated lead-acid battery is a typical lean battery with a small amount of electrolyte. Therefore, the average electrolyte density is as high as 1.30～1.32 g/cm3, which corrodes the electrode plate severely and has short front terminal life.

Compared with the telecom-grade front-terminal valve-regulated lead-acid battery, the front terminal battery has optimized the pole group structure under the condition of ensuring the standardization of the front terminal battery shape and introduced the world's advanced core material PVC-SiO2 and nano-grade gas phase method dioxide. Silicone gel agent, which uses gel electrolyte technology and reduces the density of colloidal electrolyte, improves the high-temperature resistance, charge acceptance, overcharge, deep discharge, and over-discharge capabilities of the front terminal battery, making the front terminal battery adapt to the outdoors the ability to use the environment is greatly improved, and it can fully meet the construction and development needs of outdoor integrated communication power. If you are in the front terminal battery business, you can consider Champion Power company’s cost-effective products.