Lithium Batteries: How Do Rechargeable Batteries Work?


Monday, March 16th 2020, 2:19 am
By: News On 6


Lithium Batteries

Over 350 million rechargeable batteries are sold in the United States every year.

They are a major part of the battery industry and modern life. This popularity can leave people wondering, how do rechargeable batteries work?

Most batteries aren’t rechargeable. Once they run low and no longer have any charge, they have to be discarded. With the rising popularity of lithium-ion batteries, more and more rechargeable batteries are being sold. This increasing market share promises a future with less waste and environmental damage.

How Do Rechargeable Batteries Work?

In order to fully understand how rechargeable batteries work, you must first understand how batteries work. The three basic structures of a battery are a positive electrode, a negative electrode, and an electrolyte solution.

Different materials make up each piece, but when you break it down, it works something like this. When the battery is being used, the positive electrode releases the energy. When the battery is being charged, energy is coming in via the negative electrode.

What allows this to happen is the electrolyte solution that enables the lithium ions to move between the electrodes. This is also why batteries have a positive and a negative, which is seen in both regular and rechargeable batteries.

When you recharge a battery, you are just reversing the process by which it gives out energy. The ability to reverse this process is what stands as the key difference between rechargeable and non-rechargeable batteries.

Modern lithium-ion batteries can last for years and hundreds of charges. Early rechargeable batteries were often made of nickel and cadmium and a few other types. These couldn’t be recharged nearly as often and would often develop memory issues where the battery would have to be fully drained.

A modern lithium battery does not develop memory issues, and there are several other forms of rechargeable batteries that don’t as well. The basic function of each of these batteries is the same, whether it is the lead-acid battery in your car or the batteries in your razor.

Basic Lithium Battery Information

This process is very efficient inside a lithium-ion battery. In figuring out how rechargeable batteries work, you will notice that lithium-ion batteries have incredible life spans. This is due to the efficiency of the reaction and the ability to the lithium ions to continue to hold a charge.

One of the big advantages of rechargeable lithium-ion batteries is that they are lightweight. This is possible because the electrodes are made of lithium and carbon. Both of these substances are lightweight, and so, in turn, the battery itself is lightweight.

Another advantage of these batteries is that they can be recharged many times. This stands in stark contrast to earlier attempts to make rechargeable batteries. Lithium-ion batteries are still being developed with longer lifespans and more efficient transfers of energy.

Knowing How Much Charge You Have Left

If your battery is inside your phone, the phone will tell you how much energy is left. This signals you when it is time to recharge your battery. It is important not to let the battery drain all the way as this will have a negative effect on the lifespan of the battery.

In order to delve deeper into what is costing your battery energy, you can use a battery monitor. This will help you identify where the power inside your battery is going. You can use this information to conserve battery power and be more aware of when and how the battery will drain.

Most other devices that use lithium-ion batteries can also benefit from battery monitoring. This includes tablets, cameras, and even laptops. The more you know about what is happening to your battery, the more control you have over the performance of your device.

Rechargeable Battery Technology

Lithium-ion batteries were first developed in the 1980s by a joint collaboration. This earned the scientists a Nobel prize. Rechargeable lithium-ion batteries were born from a desire for fossil-fuel-free energy.

While we haven’t reached that goal yet, the reality is that energy has never been cleaner and more efficient. This is also positive for the environment as we aren’t disposing of as many heavy-metal batteries in landfills. Most lithium-ion batteries are recycled and therefore avoid causing great pollution.

The power of rechargeable batteries has grown so much that they now serve us in many different ways. From battery packs that can harness solar energy to power an entire house to vehicles that don’t need gas. They are even using lithium-ion battery technology to begin powering electric flight.

Lithium Batteries Don’t Last Forever

Despite the ability to recharge lithium-ion batteries so efficiently, they don’t last forever. Eventually, their ability to carry a charge will deteriorate, and the battery will have to be replaced. This does not often happen all at once. Instead, there is a slow decay and reduction of charge.

Once your battery begins to show its age, you will have to charge it more often. The amount of time that your lithium-ion battery holds a charge will continue to decrease. Most of us replace the battery before it reaches this point.

When you do replace your lithium-ion battery, remember to recycle it. This is how we both have the convenience of modern rechargeable battery technology and reuse as much of each battery as possible. This is important with lithium-ion batteries because lithium is a finite resource.

A Precious Technology

To live in the modern era is to be surrounded by technological and engineering marvels. The lithium-ion battery is no exception and provides power and rechargeability that people of other times would think impossible. Taking care of these little marvels will ensure they last longer and work better.

In answering the question “how do rechargeable batteries work?” you also uncover the importance of them. It is easy to overlook a technology that is so advanced and yet is carried by almost everyone in our society. The future of rechargeable batteries is bright, and technology will continue to make these devices better and more robust.

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