Introduction to the principle, advantages and disadvantages of lithium-ion battery chargers

Principle of Lithium-ion Battery Charger Lithium-ion battery charger is a charger specially used to charge lithium-ion batteries. Lithium-ion batteries have higher requirements for chargers and need to protect circuits. Therefore, lithium-ion battery chargers usually have higher control precision and can charge lithium-ion batteries with constant current and voltage. Lithium-ion batteries have a high energy-to-weight ratio and energy-to-volume ratio, no memory effect, can be recharged many times, have a long service life, and are increasingly cheaper. These characteristics of lithium-ion batteries have promoted the development of portable products in a smaller and lighter direction, making more and more products using single-cell lithium-ion batteries for power supply. Lithium-ion battery charger HME products are widely used in military industry, scientific research, resource exploration, medical instruments, ultrasonic flaw detection equipment, video cameras, digital communications, digital electronics, solar power plants and personal computers and other portable electronic equipment power supply fields. At present, lithium-ion batteries are widely used. In addition to the use of industrial products or special equipment, the mass consumer sector is also relatively broad, such as electric bicycle batteries, bright flashlight batteries, backup power sources, etc., and thus used as supporting equipment for lithium-ion batteries. There will inevitably be a great market demand for the power supply, which has become a hot spot for various power supply manufacturers. The charging process of lithium-ion batteries is completely different from that of nickel-cadmium and nickel-hydrogen batteries. It is a complex electrochemical reaction process. Therefore, it is necessary to configure a dedicated charger for charging. Even if it is a dedicated lithium-ion battery charger, since the charging voltage tolerance is very strict (generally 1%), it is necessary to distinguish whether the battery is fully charged with 4.1V or 4.2V. The quality of the charger plays a vital role in the life of the lithium-ion battery. Advantages and disadvantages of lithium-ion battery chargers Li-ion battery chargers are specially designed to charge lithium-ion batteries. Li-ion batteries have higher requirements for chargers and need to protect the circuit, so lithium-ion battery chargers usually have With high control precision, it can charge lithium-ion batteries with constant current and voltage. Li-ion battery charger has protection functions such as short circuit, reverse battery polarity, overcurrent and overvoltage. It is in a low-power sleep mode when the power supply voltage is low, and the battery leakage current is very small; advantages: high working voltage, small size, weight Lightweight, high energy, long life, safe and fast charging, wide allowable temperature range, small discharge current, no memory effect, and no environmental pollution. Disadvantages: no interchangeability with dry batteries, no fast charging, high internal impedance, large changes in operating voltage, large discharge rate, rapid capacity drop, and high current discharge. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: Introduction to the types of lithium-ion batteries