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18650 Lithium-Ion Battery – What Is It?

What is a 18650 lithium-ion battery? Do you know what it is? This article will show you just how common these types of batteries are and how they work!

What is the 18650 lithium-ion battery?

The 18650 lithium-ion battery is a popular type of cylindrical battery used in vacuum cleaners, sweeping robots, etc. This type of battery is made up of several cells connected in series and has a capacity of about 3,000mAh. The 18650 lithium-ion battery is often considered to be a high-capacity battery, and it is also one of the most common types of batteries used in portable devices.

How does the 18650 lithium-ion battery work?

18650 lithium battery has a positive electrode, negative electrode, separator, and electrolyte. Charging lithium batteries generates lithium ions (equivalent) from the positive electrode, which “swim through” the electrolyte and separator to the negative electrode and are entrenched in it. Lithium ions “swim” from the negative electrode to the positive electrode during discharge.

Advantages of 18650 lithium-ion batteries

18650 lithium-ion batteries have many advantages over traditional battery types. They are lighter and more energy dense, meaning they can hold a greater amount of power without becoming overly bulky or heavy. 18650 lithium-ion batteries also have a longer life than other types of batteries and can be recharged many times without losing their ability to power devices. Additionally, 18650 lithium-ion batteries are environmentally friendly, as they do not produce harmful emissions when in use.


EVE has a lot of research on cylindrical lithium batteries, which are involved in industries such as electric vehicles. To learn more, you can check our official website.

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