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NEET UG 2026 » NEET UG Study Material » Chemistry » Lead Accumulator
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Lead Accumulator

Lead accumulators are unique in their work; they are among the best electrical storage devices. These accumulators use special electrodes in order to generate electricity.

Table of Content
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The lead accumulator is also a type of electrochemical cell. However, to produce some effect, these cells do not produce electricity, but they can store electricity and even other charges. The electrodes which are used in these cells are known as grids. 

Special alloys are made by a lead alloy device to get better strength and hardness of the main support to gain easy assembly; the entire setup is called active mass. This mass is composed of a very fine Pb powder with lead oxide. Further, we dilute it with sulphuric acid. After the drying is done, the mass of the entire unit turns into lead sulfate and unused lead oxides, which are seen at every stop. The final electrodes that give the current are formed by distributing the active mass over the main support and charging and making them active through electrolysis through sulphuric acid.

Components of a Lead Accumulator

The lead-acid accumulator is made up of special components. All these components are very important in forming the battery. The main components out there are:

• Metallic lead along with the alloy of Sb and calcium. 

• A basic electrolyte that has diluted sulphuric acid or H2SO4.

• Plastic materials are also used to form separators and other cases.

After many years of research and experiments, we are finally able to improve both the quality of all the components and the production technology and the technology which has enabled better quantity, too. The battery aligners and the main components have been oriented to better and improve performance to extend the device’s life. On the other hand, the cost has also decreased. Environmental issues have played a great role in further improvement in this context. They have made the producers use more suitable materials with a better technical and economic viewpoint. On the other hand, they are easily recyclable as well.

Car Lead-Acid Accumulators

The lead accumulator has developed and gone better with numerous changes over the years. Some of the best usages of this development were the car lead accumulators. The car lead accumulators are good because:

  • Both the positive and negative support grids with the lead and tin alloys provide efficient tolerance to the device. The battery producers that are present and are used to develop such alloys from the melting unit or the smelters are good. Further, the origin of this lead that was so better than the previous one, was used for both primary and secondary battery development. The tin was specially selected for the alloy to make the smelting easier, and the process became more cost-effective. On the other hand, it facilitates the handling of the main support during the manufacturing and production process. 

  • The spectator section: Up till a few years ago, PVC was considered the best choice for separators. In the long run, this material caused serious hazards and other major problems to the recyclers. The pyrometallurgical smelting process or the melting in a limited heat determines the release of chlorine or other gasses into the air, which was not appreciated. Accordingly, installing in-built upstream and cleaning equipment was necessary to eradicate any other material from the main supporting electrodes.

  • The outer casing: the typical material used was ebonite, a highly cross-linked rubber that improves strength and has high acid resistance and tolerance in the structural strength. The ebonite case was also a big problem for the main recyclers as it also produced problems in the by-product generation. Such by-products were poisonous and were essentially filtered. One needed it to be separated before the process of smelting, and on the other hand, because it was not usable for recycling and regeneration.

Introduction of maintenance-free batteries

This is one of the most used batteries during a period, but now when we talk about lead accumulators, better devices are present. The success of these batteries in the market depends on many points. They might include:

  • They use some of the best castable lead and calcium, which can be caster with ultimate ease. The alloy with limited calcium for both the electrodes made things better with the device. 

  • There was complete removal of lead from the main grid support. This solved the by-product problem.

  • There was a separator used to wrap the positive electrode to avoid short-circuits.

  • The removal of the space that was once designed to collect the active mass at the lowermost part of the battery was also a great achievement.

Industrial and Stationary Based

These battery cum accumulator cars were largely used in the basic industry and consumer-based applications. They have gone through the same development as the one seen in the car batteries. However, there are huge differences between the two classes in terms of the size and shape of the different electrodes and alloy compositions.

More About the Lead Accumulator Cell

The lead accumulator is a secondary cell, and in a rare case, one finds them to work as primary cells. They are the cells that possess the special repeating action. They can be recharged and then again could be reused by passing electricity through the main components after they fail to support the charging. So the secondary cell, in this case, is even better, and they last longer than the ordinary one. Due to such features, these cells are also called the storage cells. The cells are easily rechargeable as the reaction over the electrode is reversible, and the process can be used. It could be repeated numerous times to utilize the maximum. 

History of Lead Accumulator

The French scientist Nicolas Gautherot first came up with a special idea in 1801 that the special wires that were used in electrolysis would themselves provide and produce a small amount of so-called “secondary” current after the primary battery was removed. In 1859, another great scientist named Gaston Planté made a lead-acid battery, the first battery to have the power to be recharged. This led to continuous development that was further attributed to the development of the main lead accumulator.

Conclusion

We have mentioned some of the best uses of lead accumulators out there in the article. These special accumulators can be used effectively to provide extra charge and current flow.

faq

Frequently asked questions

Get answers to the most common queries related to the NEET UG Examination Preparation.

What is a lead accumulator?

Ans. The lead accumulator is indeed a secondary cell because the electricity is not generated within the cell but r...Read full

What are the components of lead accumulators?

Ans. Special components form the lead-acid accumulator. All of these elements are necessary for the creation of the...Read full

From where did the idea of lead accumulator originate?

Ans. Nicolas Gautherot, a French physicist, first proposed in 1801 that the particular wires used in electrolysis co...Read full

Why is a lead accumulator a secondary cell?

Ans. The lead accumulator is a secondary cell because the electricity is not generated within the cell but rather co...Read full

Ans. The lead accumulator is indeed a secondary cell because the electricity is not generated within the cell but rather conserved until being released by an external device.

It’s a reversible cell since the reactions in the cell are reversible if the externally applied electromotive force is sufficiently larger than the emf of the cell. As a result, total cell reactions are reversed in this cell by applying external opposite e.m.f, which is bigger than the e.m.f. of the cell. 

This secondary cell has the ability to store electricity from charging or an external source, and it can also supply energy during the discharge process. As a result, the electricity is stored in chemical energy. As a result, this cell is an accumulator or a storage cell.

Ans. Special components form the lead-acid accumulator. All of these elements are necessary for the creation of the battery. The following are the most important elements:

  • Metallic lead, as well as an Sb-calcium alloy.
  • A dilute sulphuric acid or H2SO4-based electrolytic solution.
  • Separators and other covers are also made of plastic materials.

After several years of study and trials, we have now been capable of improving both the standards of all of the components and the method of preparation, which has resulted in increased quantity. The major elements and battery aligners have been positioned to enhance performance and lengthen the device’s life. On the other hand, the price has dropped.

Ans. Nicolas Gautherot, a French physicist, first proposed in 1801 that the particular wires used in electrolysis could provide and generate a little amount of “secondary” current after the main battery was removed. Another brilliant scientist, Gaston Planté, invented the lead-acid battery in 1859, which was the first battery with the ability to be recharged. This resulted in constant progress, which was linked to the advancement of the primary lead accumulator.

Ans. The lead accumulator is a secondary cell because the electricity is not generated within the cell but rather conserved until being released by an external device. The secondary cell can store electricity from charging or an external source, and it can also supply energy during the discharge process. The electricity is stored as chemical energy.

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