From Raw Materials to Finished Product: How Lead Acid Batteries are Made in the Industry

 Lead acid batteries are one of the most widely used types of rechargeable batteries, known for their reliability and low cost. But have you ever wondered how these batteries are made in the industry? In this blog, we'll take a closer look at the manufacturing process of lead acid batteries.

Lead Acid Battery

Step 1: Raw Materials

The first step in making a lead acid battery is to gather the raw materials. These include lead, lead oxide, sulfuric acid, and other chemicals such as antimony and calcium.

Step 2: Grid Production

The next step is to produce the battery grids, which are made from lead and other metals. The grids are formed using a machine called a grid caster, which pours molten lead into molds to form the grid shape. The grids are then cooled and trimmed to the appropriate size.

Step 3: Plate Production

After the grids are produced, they are then coated with lead oxide to form the battery plates. This process is known as pasting, and it involves mixing lead oxide with water and other chemicals to form a paste that is applied to the grid surface. The plates are then dried and cured.

Step 4: Assembly

Once the plates are ready, they are assembled into the battery casing along with the electrolyte solution, which is made up of sulfuric acid and water. The positive and negative plates are alternated in the casing, separated by insulating separators.

Step 5: Formation

After the battery is assembled, it undergoes a process called formation. This involves charging and discharging the battery several times to establish its capacity and optimize its performance.

Step 6: Finishing

Finally, the battery undergoes finishing, which involves adding the terminal posts and other components such as vent caps and handles. The battery is then packaged and shipped to customers.

Conclusion:

In conclusion, lead acid batteries are made through a complex manufacturing process that involves gathering raw materials, producing grids and plates, assembling the battery, and undergoing formation and finishing.

Despite the complexity of the process, lead acid batteries remain a popular and reliable technology due to their low cost and wide availability. By understanding how these batteries are made, we can better appreciate the effort and expertise required to produce these essential components of modern electrical systems.