Li Ion Vs Li Polymer Battery: Which Is Better?

Liion Vs Lipolymer Which Is Best KyankruwLin


In this era of technology, batteries play a crucial role in powering our electronic devices. Lithium-ion (Li-ion) and Lithium-polymer (Li-polymer) are two of the most popular types of batteries used in smartphones, laptops, and other portable devices. In this article, we will compare the two battery types and determine which is better.

What is a Li Ion Battery?

Li-ion batteries are rechargeable batteries that use lithium ions as their primary electrolyte. They are commonly used in laptops, smartphones, and other portable devices. Li-ion batteries have a high energy density, which means they can store a lot of energy in a small space. They are also lightweight and have a low self-discharge rate.

Advantages of Li Ion Batteries

The advantages of Li-ion batteries include: – High energy density – Lightweight – Low self-discharge rate – No memory effect – Fast charging time

What is a Li Polymer Battery?

Li-polymer batteries are also rechargeable batteries that use a polymer electrolyte instead of a liquid electrolyte. They are commonly used in smartphones, tablets, and other portable devices. Li-polymer batteries have a high energy density and are lightweight.

Advantages of Li Polymer Batteries

The advantages of Li-polymer batteries include: – High energy density – Lightweight – Flexible – Safer than Li-ion batteries

Comparison between Li Ion and Li Polymer Batteries

Here are the key differences between Li-ion and Li-polymer batteries:

Energy Density

Li-polymer batteries have a slightly higher energy density than Li-ion batteries. This means that they can store more energy in the same space.


Li-polymer batteries are lighter than Li-ion batteries. This makes them ideal for portable devices that require a lightweight power source.


Li-polymer batteries are more flexible than Li-ion batteries. This means that they can be designed in a variety of shapes and sizes to fit different devices.


Li-polymer batteries are considered safer than Li-ion batteries because they are less prone to overheating and explosion.

Which is Better?

Both Li-ion and Li-polymer batteries have their advantages and disadvantages. However, Li-polymer batteries are generally considered better for portable devices because of their lightweight and flexible design. They are also safer than Li-ion batteries.


In conclusion, Li-polymer batteries are better than Li-ion batteries for portable devices. However, it is important to note that each type of battery has its own advantages and disadvantages. When choosing a battery for your device, it is important to consider your specific needs and requirements.