Keyword search: battery plant , lithium battery factory , power bank works , lifepo4 battery mill , lithium forklift battery manufacturer

Detailed explanation of lithium-ion battery protection circuit, principle of lithium-ion battery protection board. The principle of lithium-ion battery protection board is very simple. The reason why lithium-ion batteries (rechargeable) need protection is determined by their own characteristics. Due to the material of lithium-ion batteries themselves, they cannot be overcharged, overdischarged, overcurrent, short circuited, or subjected to ultra-high temperature charging and discharging.

Detailed explanation of lithium-ion battery protection circuit

Due to the chemical properties of lithium-ion batteries, there is a chemical positive reaction between electrical and chemical energy during normal use. However, under certain conditions, such as overcharging, over discharging, and over current, chemical side reactions may occur inside the battery. This side reaction, when intensified, can seriously affect the performance and service life of the battery, and may result in a large amount of gas, Explosion caused by rapid increase in internal pressure of the battery, leading to safety issues.

Therefore, all lithium-ion batteries require a protective circuit to effectively monitor the charging and discharging status of the battery, and to turn off the charging and discharging circuits under certain conditions to prevent damage to the battery.

To ensure the safety of use, lithium-ion batteries must have corresponding battery management circuits in their applications to prevent overcharging, discharging, and overcurrent. The ultra small packaging and minimal external device requirements of lithium-ion battery protection ICs make them widely used in the design of single cell lithium-ion battery protection circuits.

At present, specialized lithium-ion battery protection board testers have appeared in the market, but the prices are generally high, and the IC must be soldered onto the circuit board before testing.

In practical applications, the most important parameters of lithium-ion battery protection ICs that customers value the most are overcharge, over discharge, and over current protection voltage, static working current and outage current, overcharge, over discharge, and over current protection delay, as well as the output high and low levels of OD and OC pins.

Principle of lithium-ion battery protection board

The commonly used equalization charging techniques for lithium-ion battery protection boards include constant shunt resistance equalization charging, on/off shunt resistance equalization charging, average battery voltage equalization charging, switch capacitor equalization charging, step-down converter equalization charging, inductor equalization charging, etc.

The lithium-ion battery protection board also has the function of protecting the battery from overcharging. When the external power supply continuously and quickly charges the battery, the lithium-ion battery protection board will have a protective purpose. When the internal power of the lithium-ion battery reaches saturation, the internal circuit of the lithium-ion battery protection board will automatically cut off the power supply for external rapid charging. Make it impossible for external power sources to enter the battery. This is also the principle of lithium-ion battery protection board to protect the battery from overcharging.

The above is a brief introduction to the functions of lithium-ion battery protection boards by the editor. We hope that when using or purchasing lithium-ion batteries, everyone must pay attention to whether the quality of the lithium-ion battery protection board is intact.

Lithium ForkLift Batteries ,Ensure Quality

Our lithium battery production line has a complete and scientific quality management system

Ensure the product quality of lithium batteries

Years of experience in producing lithium forklift batteries

Focus on the production of lithium batteries

WE PROMISE TO MAKE EVERY LITHIUM BATTERY WELL

We have a comprehensive explanation of lithium batteries

QUALIFICATION CERTIFICATE

THE QUALITY OF COMPLIANCE PROVIDES GUARANTEE FOR CUSTOMERS

MULTIPLE QUALIFICATION CERTIFICATES TO ENSURE STABLE PRODUCT QUALITY

Providing customers with professional and assured products is the guarantee of our continuous progress.

Applicable brands of our products