When there is a connection of wire between the electrodes, there will be the passage of current from the negative to the positive plate via an external circuit which signifies that the cell holds the ability to provide an electric form of energy. When there is no DC supply and then at the time when a voltmeter is connected in between the electrodes, it displays the potential difference between electrodes. This means at the time of the charging process the lead cathode element stays as lead itself whereas the lead anode is formed as lead peroxide which is dark brown in color. Whereas the developed from the above reactions react with lead oxide and forms lead peroxide. In the same way, the negative ions will have a movement and move towards the direction of the positive edge of the battery.Įvery hydrogen and sulfate ions collect one and two-electron and negative ions from the cathode and anode and they have a reaction with water. When these electrodes are dipped in the solutions and provide a DC supply, then the positive ions will have a movement and move towards the direction of the negative edge of the battery. The negative active component is somewhat complicated and they experience a slight modification in charging and discharging processes.Īs sulphuric acid is used as an electrolyte in the battery, when it gets dissolved, the molecules in it are dispersed as SO 4 – (negative ions) and 2H+ (positive ions) and these will have free movement. While the pasted process is mostly used for the construction of negative plates than that of positive plates. These have minimal capacity to weight proportion. But they have long durability and these are not easily prone to lose their active components even in continuous charging and discharging processes. The formed plates are mainly employed for static batteries and they have heavyweight and expensive too. Those are of plante/formed plates and Faure/pasted plates. The plates in this battery are of two kinds. If there is uneven distribution, then there will be loosening of the active component. The grid is crucial to establish conductivity of current and for spreading equal amounts of currents to the active components. The plates in lead acid battery are constructed in a different way and all are made up of similar types of the grid which is constructed of active components and lead. The components that are utilized for the construction of the container should be free from sulphuric acid, they should not bend or permeable and do not hold any kinds of impurities which leads to electrolyte damage. Here, the prism acts as a base for both the plates and additionally it safeguards the plates from short-circuit.

Whereas in the container bottom section, there exist four ribs where two are placed on the positive plate and the others on the negative plate. This container part is constructed with ebonite, lead-coated wood, glass, hard rubber made of the bituminous element, ceramic materials, or forged plastic which are placed on the top to eliminate any kind of electrolyte discharge. The lead acid battery diagram is Lead Acid Battery Diagram Container The below section provides a detailed description of each component used in the construction.

In the lead acid battery construction, the plates and containers are the crucial components.

Lead acid battery cathode and anode