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What is the Difference Between Lithium Ion and Lithium Polymer Batteries? 

 September 21, 2021

By  Phil Borges

We all have something in common. We are all searching for the best batteries to power our devices. It can be challenging to know what kind of battery is right for your device. But don't worry, in this blog post will discuss what is the difference between lithium-ion and lithium polymer batteries so you can make an informed decision about which one to use!

What are Lithium-Ion and Lithium Polymer Batteries?

It might seem like a question with an obvious answer, but it actually depends on your needs. The battery is the most crucial component in a portable device, and yet people will often replace it without even knowing what kind they have. To help you understand better whether you need a lithium-ion or a lithium polymer battery here is some information on both of them.

Lithium-Ion Batteries:

The workhorse of today's cellphones is lithium-ion (Li-ion) batteries. These tiny battery packs contain three separate components: an anode that stores lithium metal, graphite, and electrolytes cathode to prevent short circuits and a separator to keep the two parts apart. When we charge our batteries, ions from the negative terminal travel toward the positive electrode, gaining energy in the process. As you discharge it over time, these same particles move back again in an endless cycle to maintain that charge.

  • Are excellent for high energy density
  • Cost less than their lithium polymer counterparts
  • They have a tiny electronic controller which controls power and discharge flows to protect your battery from overheating or exploding.

Several businesses have discovered how to transform these lithium-ion batteries into layers and add even more capacity.

Lithium Polymer Batteries:

Lithium polymer batteries are a type of rechargeable battery that offers advantages over their lithium-ion counterparts, such as power and recharge rates.

Lithium-polymer (Li-Po) is a very ancient technology that may be found in older bar phones and computers. The structure of these batteries is comparable to that of Li-ion batteries. However, they are composed of a gel-like material that is quite light.

  • Lithium polymer batteries are lighter, more robust, and safer than older types of lithium batteries.
  • They're also more expensive than the lithium-ion variety, but they still pack a significant punch when it comes to energy density - less than half of what you get with a Li-Ion battery.
  • They have lower chances of leaking electrolytes than lithium-ion ones.

What is the difference between Lithium Ion and Lithium Polymer Batteries?

Lithium-ion and lithium polymer batteries are two different types of rechargeable batteries that power everything from your laptop to your phone. Lithium-ion and lithium-polymer batteries offer a number of advantages, but there are also differences between the two kinds of batteries that you should know before making an investment.

The main difference between these types of batteries is the method of construction. Lithium-ion batteries are made up of three parts: anode, cathode, and separator, while lithium polymer batteries have a gel electrolyte substance in place of the traditional dry solid state.

Lithium-ion batteries are more common in consumer electronics because they can store a large amount of energy in a small package that is easy to transport. They can be recharged by applying electricity from either an outside source or through self-contained systems within the battery itself and have high charge densities. Lithium polymer batteries tend to have a lower energy density but are more stable in extreme temperatures compared to lithium-ion batteries.

Which battery is best to use?

Both lithium-polymer and Lithium-ion rechargeable batteries provide several benefits, including small size, lightweight capacity for storing large amounts of power, and the ability to be recharged without having to replace them completely. However, while there are many similarities between these two types of batteries, there are also some significant differences that you must consider before making an investment.

Some important things to know about Lithium-ion and lithium polymer batteries include:

- Lithium-ion batteries are the go-to power source for high-performance devices like smartphones. They have a sleek design and can pack more cells than li-polymer counterparts, making them perfect in this sector of technology while still maintaining their great look.

- Lithium-ion batteries have a lot of advantages, but they also come with some disadvantages. One major downside is that over time the ions in your battery will lose their ability to produce maximum energy and cause an instant discharge of just about everything power-related at any given moment, including battery life.

- Lithium polymer batteries are designed to be lightweight and small in size, making them perfect for applications where weight is best considered, such as your laptop, computer, or tablet.

- Li-ion batteries have no memory effect. The gel-like substance gets tougher with time, reducing battery life. Batteries of this kind are often large because they cannot pack a lot of energy into little areas.

Conclusion

It is best to understand the differences between Lithium-Ion and Lithium Polymer batteries. While both types of lithium battery cells are rechargeable, they differ in terms of power density, voltage stability under load conditions, cycle life (how many times a cell can be charged), safety considerations such as thermal runaway or fire risk, and price.

If you're looking for something lightweight which can power up quickly, then Lithium Polymer batteries are suitable for you. Or, if you want to make sure your phone can last through even the longest days of use without needing to recharge, then lithium-ion batteries are best.

The type of battery you need will depend on your specific application requirements. We would recommend consulting with an expert before making any final decisions about which kind of lithium-ion or lithium-polymer battery to use for your project needs or device.

About the author

Hi, I'm Phil Borges.. thanks for reading.. My wife says I can't shut up about batteries so to save my marriage I've started this blog .. where I'd be ranting about batteries! Please leave a comment if you have any questions, I'm happy to help!

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