Why do lithium batteries need protection boards?

About battery protection board.

Lithium batteries have been widely used, from mobile phones to electric vehicles, 

from portable electronic devices to energy storage systems, all of which are inseparable 

from the support of lithium batteries. However, when using lithium batteries, 

we need to pay extra attention to an important component, that is, the battery 

protection board. So, why do lithium batteries need protection boards? This article will 

explain this issue in detail and explore the functions of lithium battery protection 

boards and their importance to lithium batteries.

First, let's take a look at the basic structure of lithium batteries. 

Lithium batteries are mainly composed of positive electrodes, 

negative electrodes, electrolytes and diaphragms. The electrolyte plays a conductive

role in the battery, while the positive and negative electrodes are actually 

responsible for the storage and release of charge. Under normal circumstances, 

the positive and negative electrodes of lithium batteries should have a stable 

and safe working state, otherwise the battery's performance may deteriorate 

or even overheat, explode and other dangerous situations may occur.

The role of the lithium battery protection board is to ensure the safety 

and stability of lithium batteries during operation. It is installed between 

the positive and negative electrodes of the battery to monitor and control the current. 

The protection board includes a circuit board and some controllers that can detect

 and control the battery's current, voltage, temperature and other parameters. 

Once the battery is found to be working abnormally, the protection board 

will immediately cut off the connection between the battery and the circuit

 to avoid further damage or safety accidents.

For any inquiries about lithium battery pack line solutions, please don't hesitate to contact us.