Interested in learning about battery recycling? Read along with me.

Batteries or gas power many of the gadgets we use today. These two elements have one thing in common: they can be used eternally. When this happens, it is common practice to refill petrol tanks or dispose in old batteries and replace them with fresh ones.

Disposing of batteries, on the other hand, may result in enormous waste in the environment. Additionally, batteries are widely used and contain a significant amount of hazardous material. As a result, removing them may not be the best option. Instead of throwing your battery away, consider recycling it.

Battery Recycling- Everything you Need to Know 

What is Battery Recycling?

The action of reusing and reprocessing batteries in order to reduce the number of batteries thrown as garbage is known as battery recycling. Batteries contain a variety of toxic chemicals and heavy metals, and their disposal has resulted in water and soil contamination, posing environmental concerns. As a result, we must recycle batteries for the sake of the environment and human health.

How are Batteries Recycled? (Step-by-Step Process of Battery Recycling)

You know probably that batteries are recyclable. It’s also critical to know how to recycle batteries. However, before you recycle batteries, you should know there are various types of batteries.

The components of batteries differ. Lead, lithium-ion (Li-ion), nickel-cadmium (Ni-Cd), lithium-ion polymer, nickel-metal hydride (Ni-MH), nickel-zinc, and alkaline are among the components. These components are used to produce a variety of batteries. The recycling procedure, use, and power of these batteries may then vary.

As a result, while you can recycle most of the material, it requires various procedures. Furthermore, certain batteries are easier to recycle than others. Keep in mind that the worth of their components and the hazardous levels of the chemicals used to produce them can affect this.

As a result, below is the step-by-step procedure for recycling various batteries. Let’s get started!

Read- Renewable Energy in Nigeria- Sources, Pro and Cons.

1. Process of Recycling Lead-Acid Batteries

Lead-acid batteries are the world’s oldest type of rechargeable battery. They comprise a lead and sulphuric acid combination.

These batteries are notorious for their heavy weight and short lifespan. Many car manufacturers utilize lead batteries to power their vehicles.

The following is a step-by-step guide to recycling lead batteries:

  • Collection

This procedure entails collecting lead batteries from waste disposal sites. At this point, a recycling firm collects the batteries.

  • Crushing

Breaking lead batteries apart is the next step in the recycling process. They crush the battery into bits in the recycling facility using hammer mills.

  • Sorting

The pieces of a lead-acid battery are separated into this operation. The recyclers separate plastic and paper components of a battery from the lead and metal components. After that, the process furthers the lead and heavy metals in the battery.

  • Sieving

During this procedure, recyclers remove thermoplastics from the battery. The liquid in the battery is then sieved away, leaving only the dry lead components. Lead and heavy metals are moving on to the last step of the recycling process. The plastic materials extracted from the battery, on the other hand, are washed. They subsequently send the thermoplastic to plastic recyclers, who reprocess it. Thermoplastics are suitable materials for creating new battery casings. These thermoplastics are also used to create new plastic items by plastic manufacturers.

  • Extraction Processes

The separation of lead and heavy metal components from the battery’s remnants is the final stage in lead-acid battery recycling.

In this stage, two processes are involved. The first method involves extracting metal from materials that contain it using liquid solutions. The second method, on the other hand, involves extracting and refining metals at high temperatures.

The lead and heavy metal in the battery go through four steps when these processes are combined. Calcinations (heating), roasting, smelting, and refining are the processes involved. Molten lead is the final product. Recyclers mold molten lead and sell it to manufacturers for use in making new batteries.

Learn about Long Duration Energy Storage in Nigeria.

2. Recycling Alkaline Zinc Air /Zinc Carbon Batteries

Alkaline batteries go through a recycling procedure that involves mechanically disassembling the battery pieces. The first step, as with lead and other batteries, is to gather used alkaline batteries. After that, the batteries are separated and sorted.

Recycling companies take three pieces from the batteries after they have been disassembled. Steel, plastic, and paper components, as well as zinc and manganese components, make up the parts.

They then process these materials at recycling facilities before being retrieved by manufacturers for use in making new goods.

Read- Plastic Recycling and everything you need to know.

3. Lithium Ion, Nickel Metal Hydride, Nickel-Cadmium Batteries Recycling

Lithium-ion (Li-ion) batteries are rechargeable batteries that are commonly seen in automobiles and electronic devices. Rechargeable nickel-based batteries are also employed in cars and portable gadgets, such as cameras.

In terms of recycling, these batteries have a lot in common. They also have certain similarities to lead-acid batteries for the recycling process. The following is a step-by-step guide to recycling lithium and nickel batteries:

  • Collection

Recyclers gather discarded lithium and nickel batteries from collection stations or other locations in this process.

  • Sorting

Recyclers remove the plastic materials of a battery from the metal components in this stage. Both materials are ideal for creating new items.

  • Smelting

Here, lithium-ion and nickel-based battery components go through a process known as High-Temperature Metal Reclamation. Extraction techniques are also used to recover metals from batteries. This method gets metals such as nickel, manganese, chromium, and iron, which are then used to create new goods.

  • Recycling Mercury Batteries

Mercury batteries are collected and recycled using liquid and heat extraction processes. Heavy metals included in mercury batteries are extremely hazardous. Recyclers treat these dangerous metals under regulated extraction conditions because of their existence.

The mercury recovered during the extraction methods can be used to make new mercury batteries, measuring devices, and fluorescent light parts. Plastic and other materials obtained from the batteries may be used by manufacturers to create new goods.

Battery recycling can be a difficult task. As a result, recyclers must be familiar with the techniques for recycling various battery kinds. While mercury batteries are no longer in use because of their very poisonous components, the other battery kinds are still in use by equipment manufacturers.

Rea- Wind Energy- A Choice of Energy generation in Nigeria.

Benefits of Battery Recycling

Here are five ways that battery recycling helps the environment and the rest of the world:

  1. Recycling cuts down on the amount of waste that ends up in landfills.
  2. Nonrenewable Resource Conservation
  3. Batteries Can Be Recycled Pollution should be avoided.
  4. Battery Recycling helps to save energy.
  5. Recycling generates new employment opportunities.

Learn about Grid Innovation: Leveraging on Grid Modernization.


Recycling is beneficial to both humans and the environment. Plus, there’s more. It safeguards us from the harm that items like batteries can inflict.

If you have dead batteries that appear to be useless, you should recycle them. You may also ‌avoid the expense of purchasing a new battery.

Aside from assisting you in selecting batteries for recycling, this article has illuminated the recycling procedure. We’ve also mentioned a battery-related practice you should avoid. With these suggestions, you can contribute to making the world a safer place to use batteries. Learn also about the top 11 solar companies in Nigeria.