What are the types and differences of cylindrical lithium batteries? What are the advantages of cylindrical lithium batteries

Cylindrical lithium batteries are a relatively common type of lithium batteries. Cylindrical lithium batteries using steel shells are more durable and safer than soft-pack lithium-ion batteries. According to the materials, it can be divided into lithium cobalt oxide batteries, lithium manganese oxide batteries, and ternary batteries. Cylindrical lithium batteries of different materials have different advantages. Cylindrical lithium-ion batteries are commonly used in notebook computers, cameras, lighting equipment, electric toys, hardware tools, handheld mobile energy and other fields. In addition, cylindrical lithium ion batteries are more suitable for mass automated combined production. Mass production of lithium ion batteries for electric bicycles and electric motorcycles are basically cylindrical lithium ion batteries. What are the types of cylindrical lithium batteries? Cylindrical lithium batteries What are the types and differences? What are the advantages of cylindrical lithium batteries 1) Cylindrical lithium battery types 1) 16340 battery 16340 battery is a lithium battery with a diameter of 16mm and a height of 34mm. This kind of battery has a lower ruler height and a small capacity, so It often appears in strong light flashlights, LED flashlights, headlights, laser lights, and lighting fixtures. Some primary batteries are used in communication equipment or electronic measuring instruments. 2) 18650 battery 18650 lithium battery is a lithium 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 Wh/kg, so this battery is cost-effective Battery, we usually see this type of battery, because it is a relatively mature lithium battery, and the system quality is stable in all aspects. It is widely used in applications with a battery capacity of about 10 kWh. The high-performance battery of notebook computers is basically Both use 18650 lithium-ion batteries as power source. A large part of electric tools and electric vehicles also use 18650 lithium batteries as a combination. The vast majority of strong light flashlights use 18650 single-cell batteries. In short, 18650 lithium-ion batteries are the most common and most frequently used lithium battery models in life. 3) 21700 battery 21700 battery is a lithium battery with a diameter of 21mm and a height of 70mm. Because of its increased volume and space utilization, the energy density of the battery cell and the system can be improved, and its volumetric energy density Much higher than the 18650 battery, the 21700 lithium ion battery is an upgrade of the 18650 lithium battery. The higher capacity storage than the 18650 lithium battery makes the performance stronger. Tesla electric vehicles used the 18650 lithium ion battery in the early days. , The latter basically adopted 21700 lithium batteries as a substitute for 18650 lithium batteries. 21700 batteries are also widely used in power tools and daily electric equipment. 4) 10440 battery The 10440 battery is a lithium battery with a diameter of 10mm and a height of 44mm. It is the same size as what we often call the 'No. 7 battery'. The capacity of this lithium battery equivalent to the size of the No. 7 battery is generally small. Only a few hundred mAh, mainly used in mini electronic products. For example, flashlights, mini speakers, loudspeakers, etc. 5) 14500 battery The 14500 battery is a lithium battery with a diameter of 14mm and a height of 50mm. This is also the size we have always called the 'No. 5 battery'. This battery is generally 3.7V or 3.2V. The nominal capacity is compared. Smaller, a little bigger than 10440 battery, generally 900mAh, superior discharge performance, the main application areas are consumer electronics, such as wireless audio, electric toys, digital cameras, etc. Advantages of cylindrical lithium batteries 1. Cylindrical lithium batteries have formed a series of internationally unified standard specifications and models. The technology is relatively mature and suitable for mass continuous production. 2. Cylindrical lithium batteries are generally sealed batteries, and there are no maintenance problems during use. 3. The lithium battery shell has high pressure resistance, and there will be no phenomena such as square, flexible packaging battery expansion during use. 4. The cylinder has a large specific surface area and a good heat dissipation effect. 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: What is the difference between Ni-MH battery and lithium battery, and how to choose