Cordless vacuum cleaners generally use power lithium-ion batteries, which are composed of several 18650 lithium-ion batteries in series and parallel to form a lithium-ion battery pack. The lithium-ion battery protection board has protection functions such as over-charge, over-discharge, over-current, and short circuit. Give full play to the safety and stability of the power lithium-ion battery pack. It can work continuously for up to 2040 minutes on a single charge.
Lithium batteries are widely used in electric tools, lighting, wind energy storage, electric cars, toys, instrumentation, UPS backup power, communication equipment, medical equipment and special lamps. So what is the price of lithium batteries? How do lithium battery manufacturers in the market price lithium batteries?
KC certification is a national unified certification mark implemented by the Korean National Standards Committee. Lithium batteries are included in the KC certification catalog as a compulsory certification product. At present, the testing of portable secondary lithium battery packs and lithium batteries must be performed by authorized laboratories in South Korea, and cannot be transferred with the CB report of IEC 62133. After the product has passed the evaluation, it will be issued a Confirmation Letter of Declaration valid for 5 years, during which no factory inspection is required.
How many types of Lithium batteries are there? In fact, there are many types, because each battery manufacturer has its own type and specifications, and there are some customized battery specifications. The following introduces the naming of lithium battery model specifications and the meaning of the letters and numbers on the battery, so that everyone has a better understanding of the battery model specifications.
1. Lithium Cell produce process part
2. Materials part
3. Other aspects
There are two reasons for the excessive self-discharge of lithium-ion batteries: physical micro short-circuit and chemical reaction.
The protection function of lithium-ion battery is usually completed by the protection circuit board and current devices such as PTC. The protection board is composed of electronic circuits, which can accurately monitor the voltage of the battery cell and the charging and discharging circuit under the environment of -40℃ to +85℃. It can control the on-off of the current loop in time; PTC prevents the battery from being damaged badly in a high temperature environment.
Lithium ion batteries use liquid electrolytes, while polymer lithium batteries use gel electrolytes and solid electrolytes......
1. Types of rechargeable batteries: Nickel-cadmium battery (Ni-Cd), Ni-MH battery (Ni-MH), Lithium ion battery (Li-lon), Li-polymer battery (Li-polymer), Lead-acid battery (Sealed) ...
2. Explanation of battery charging performance terms...
1. The ratio of positive and negative materials for lithium-ion batteries should be reasonable. Since the active materials of the positive and negative electrodes are fixed on the substrate by the binder, the long-term stability of the binder and the good mechanical properties of the battery can delay the decline of the battery life, so to improved the positive electrode material's chemical stability and thermal stability is one of the feasible methods to maintain battery life.