Xianyu. Xianyu is currently a very well-known online platform for selling second-hand goods in China. It is also a very large-scale online platform. Its production and operation is very legal and it is very reliable to buy lithium batteries there. The drum equipment on it is provided by the sellers. A completely valid proof.
Where can I buy 18650 lithium batteries?
Lithium batteries for electric vehicles can be purchased from various online e-commerce sites and offline electric vehicle stores.
The traditional structure of a lithium-ion battery includes a graphite anode, a cathode composed of lithium-ion metal oxide, and an electrolyte (lithium salt solution dissolved in an organic solvent). The most common lithium-ion battery uses carbon as an anode, a solution of lithium hexafluorophosphate dissolved in carbonethylene ate and dimethyl carbonate as electrolyte, and lithium manganese dioxide as cathode. It is light and strong, has a high specific energy and. the cell voltage is about 3.7V.
Compared with nickel-metal hydride batteries, lithium-ion batteries have a relatively high operating voltage and large specific energy, which is three times higher than that of nickel-metal hydride batteries. Lithium-ion batteries are small in size, light in weight, have a long service life, low self-discharge rate, no memory effect and no pollution.
The numerical range of a single battery performance indicator is wide, because lithium-ion batteries have many electrode combinations and there are some differences in their performance.
Detailed information
Lithium-ion batteries have the following characteristics: lightness,large energy storage, high power and no pollution, and are increasingly used in various fields. The more extensive it is, the greater its research and production have made. Lithium-ion batteries are used as power sources in electric vehicles and have become a new trend in the development of electric vehicles.
Advancements in lithium-ion battery technology and its application in key emerging markets (electric vehicles) have sparked a global boom in research and development. Therefore, lithium-ion batteries are set to take a leading role in the sector. areas of electric vehicles and new energies.
In electric vehicles, the most commonly used lithium-ion battery is lithium iron phosphate battery, which has good thermal stability and safety and is relatively inexpensive. These factorss make lithium iron phosphate batteries the first choice for small electric vehicles and PHEV batteries.
However, among lithium ion batteries, the specific energy, specific power and operating voltage of lithium phosphate batteries are relatively low. In the application of large pure electric vehicles, lithium cobalt oxide and lithium manganese batteries have more. benefits.
However, the widespread application of lithium battery electric vehicles also has certain problems, mainly due to the performance limitations of lithium batteries, including safety, service life, cost , operating temperature and lithium material supply. -ion batteries.
Online shopping. It is sold on many online platforms. Including factory direct sales. Or the battery meter of your cenbe a local electrical salesman. 3If the quantity is large, you can order from the manufacturer. 18650 is the origin of lithium-ion batteries - a standard lithium-ion battery model defined by the Japanese company SONY in order to reduce costs, where 18 means the diameter is 18 mm., 65 means as the length is 65mm, 0 means cylindrical battery.
Type Differences
Lithium batteries are labeled 3.7V or 4.2V. It's just that the manufacturer's labeling is different. 3.7V refers to the platform voltage (i.e. typical voltage) of battery discharge during use, while 4.2V refers to the voltage when it is fully charged.
Common rechargeable 18650 lithium batteries have a standard voltage of 3.6 or 3.7 V. When fully charged, it is 4.2 V. This does not matter much. something to do with the power (capacity) of the battseries 18650. from 1800mAh to 2600mAh (the capacity of 18650 battery is mainly 2200~2600mAh), the main capacity even has a capacity of 3500 or 4000mAh or more.