What are the models and specifications of 18650 cylindrical lithium-ion batteries.

Characteristics of 18650 cylindrical lithium battery cells
The automation level of cylindrical lithium battery cell production, especially 18650, is the highest among the three important battery cell forms due to its structural characteristics and standardized model. This makes high consistency possible, and the yield is correspondingly improved.
1) The consistency of 18650 cylindrical lithium battery cells is good;
2) The mechanical properties of individual cells are good. Compared with square and soft pack batteries, closed cylindrical cells can achieve the highest bending strength under approximate size;
3) The technology is mature and the cost is low, but at the same time, the space for cost optimization has also been almost consumed;

4) The individual energy is small, and in the event of an accident, the form is easy to control, but this is also becoming the reason why it is being replaced.

What are the other models and specifications of 18650 cylindrical lithium-ion batteries?
1. 10440 battery

The 10440 battery is a lithium-ion battery with a diameter of 10mm and a height of 44mm, which is the same size as the commonly referred to as the No. 7 battery. This type of battery generally has a small capacity, only a few hundred mAh, and is widely used in mini electronic products. For example, flashlights, mini speakers, amplifiers, etc.

2. 14500 battery

14500 battery is a lithium-ion battery with a diameter of 14mm and a height of 50mm, which has always been referred to as the size of the 5th battery. This type of battery is generally 3.7V or 3.2V, with a nominal capacity of slightly smaller than 10440 battery, usually 1600mAh. Its discharge performance is superior, and its most important application areas are consumer electronics, such as wireless audio, electric toys, digital cameras, etc.

3. 16340 battery

16340 battery is a type of lithium-ion battery with a diameter of 16mm and a height of 34mm. Due to its shorter height and relatively small capacity, it is often used in high light flashlights, LED flashlights, headlights, laser lights, lighting fixtures, and other applications.

4. 18650 battery

18650 battery is a lithium-ion battery with a diameter of 18mm and a height of 65mm. Its biggest feature is that it has a very high energy density, almost reaching 170 watt hours/kg. Therefore, this type of battery is a cost-effective battery. We often see this type of battery because it is a relatively mature lithium-ion battery, with good system quality stability in all aspects, and is widely used in battery capacity scenarios of about 10 kilowatt hours, For example, on small appliances such as smartphones and laptops.

5. 21700 batteries

21700 battery is a lithium-ion battery with a diameter of 21mm and a height of 70mm. Due to its increased volume, space utilization efficiency increases, and the energy density of battery cells and systems can be improved. Its volumetric energy density is much higher than that of 18650 battery, and it is widely used in digital, electric vehicles, balance vehicles, solar energy lithium-ion battery street lights, LED lights, electric tools, etc. Important manufacturers of this type of battery include Tesla, Samsung, Panasonic, Bike, and Mengshi New Energy.

6. 26650 battery
26650 battery is a lithium-ion battery with a diameter of 26mm and a height of 65mm. It has a nominal voltage of 3.2V and a nominal capacity of 3200mAh. This type of battery has excellent capacity and high consistency, and has gradually become a trend to replace 18650 batteries. Many products in the field of power lithium batteries will also gradually favor it.

Guangzhou Battsys Co., Ltd (NEEQ:837375), was founded in 2006, which is a join-stock high-tech enterprise engaging in ODM and OEM , specially for customized and diverse research&production of lithium-ion battery，BATTSYS annual production capacity is tens of millions battery cells. The products are exported to dozens of countries & regions such as Europe, America & Asia etc.