The difference between lead-acid battery and water battery; Is lead-acid battery a dry battery or water battery?

The so-called water battery is a kind of lead-acid battery. The battery contains an electrolyte, that is, a sulfuric acid solution with a density of 1.28 when fully charged. Another type of lead-acid battery is a colloidal battery, which changes the electrolyte to a colloid.

Commonly used lead-acid batteries are mainly divided into three categories:

1) Ordinary battery; the plate of an ordinary battery is composed of oxides of lead and lead, and the electrolyte is an aqueous solution of sulfuric acid. Its main advantage is that the voltage is stable and the price is cheap; the disadvantage is that the specific energy is low (that is, the energy stored per kilogram of battery), the service life is short, and the daily maintenance is frequent.

2) Dry-charged battery: Its full name is dry-charged lead-acid battery. Its main feature is that the negative plate has high storage capacity. In the completely dry state, it can save the obtained power within two years. Just add the electrolyte and wait 20-30 minutes to use it.

3) Maintenance-free battery: Maintenance-free battery due to its own structural advantages, the consumption of electrolyte is very small, and it is basically unnecessary to supplement distilled water during the service life. It also has the characteristics of shock resistance, high temperature resistance, small size and small self-discharge. The service life is generally twice that of a normal battery. There are two types of maintenance-free batteries on the market: the first one requires no maintenance (addition of replenishing liquid) during the one-time application of the electrolyte at the time of purchase; the other is that the battery itself has been charged with electrolyte and sealed off at the factory. , the user can not add supplemental fluid at all.

A lead-acid battery (VRLA) is a battery whose electrode is mainly made of lead and its oxide, and the electrolyte is a sulfuric acid solution. When the lead-acid battery is discharged, the main component of the positive electrode is lead dioxide, and the main component of the negative electrode is lead. In the state of charge, the main components of the positive and negative electrodes are lead sulfate.

A single-lead lead-acid battery has a nominal voltage of 2.0V, can be discharged to 1.5V, and can be charged to 2.4V. In applications, 6 single-cell lead-acid batteries are often used in series to form a 12V lead-acid battery. There are also 24V, 36V, 48V and so on.

The French company Prande invented the lead-acid battery in 1859, and has experienced nearly 150 years of development. In terms of theoretical research, lead-acid batteries have made great progress in terms of product types, varieties, and electrical properties of products, whether Lead-acid batteries play an indispensable role in transportation, communications, electric power, military or in various economic fields of navigation andspecial.

Lead acid battery construction

Lead acid battery construction

According to the difference in structure and use of lead-acid batteries, the batteries are roughly divided into four categories: 1. Lead-acid batteries for start-up; 2. Lead-acid batteries for power use; 3. Fixed-type valve-regulated sealed lead-acid batteries; 4. Other types Including small valve-regulated sealed lead-acid batteries, lead-acid batteries for miner's lamps, etc.

A single-cell lead-acid battery has a nominal voltage of 2.0V, can be discharged to 1.5V, and can be charged to 2.4V. In the application, six single-cell lead-acid batteries are often used in series to form a lead-acid battery nominally 12V. There are also 24V, 36V, 48V and so on.

Main characteristics

Safety seal

Lead-acid batteries

Lead-acid batteries

In normal operation, the electrolyte does not leak out of the terminals or housing of the battery. No free acid

The special aspirating separator keeps the acid inside and there is no free acid inside the battery, so the battery can be placed in any position.

Deflating system

After the internal pressure of the battery exceeds the normal level, the VRLA battery will release excess gas and automatically reseal it to ensure that there is no excess gas in the battery.

Simple maintenance

Since the gas compounding system converts the generated gas into water, no water is added during the use of the VRLA battery.

Long lasting

A lead-calcium alloy VRLA battery with a corrosion-resistant structure can be floated for 10-15 years.

Stable quality and high reliability

Using advanced production technology and strict quality control system, VRLA battery has stable quality and reliable performance. Voltage, capacity and seals are 100% tested on-line.

Safety certificate

All VRLA batteries are UL listed.

Applications

Backup power

*telecommunications

*Solar system

*Electronic switch system

*Communication equipment: base station, PBX, CATV, WLL, ONU, STB, cordless telephone, etc.

* Backup power: UPS, ECR, computer backup system, Sequence, ETC, etc.

*Emergency equipment: emergency lights, fire burglars, fire dampers

main power

*Communication equipment: transceiver

*Power control locomotive: collection vehicle, automatic transport vehicle, electric wheelchair, cleaning robot, electric vehicle, etc.

*Mechanical tool starters: lawnmowers, hedge trimmers, cordless drills, electric screwdrivers, electric skis, etc.

*Industrial equipment / instruments

*Camera: flash, VTR/VCR, movie lights, etc.

Other portable devices, etc.

Product structure

The VRLA battery is designed such that in the battery, a part of the electrolyte is absorbed in the pole piece and the separator, thereby increasing the oxygen absorption capacity of the negative electrode, preventing the electrolyte from being lost, and enabling the battery to be sealed.