What are the specifications and advantages of cylindrical lithium batteries?

Cylindrical lithium batteries are divided into lithium cobalt oxide, lithium manganese oxide, and ternary materials. The three material system batteries have different advantages. The batteries are widely used in: notebook computers, digital cameras, lighting fixtures, toy products, power tools, portable mobile energy and other fields. 1. 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 battery is generally small, only a few hundred mAh. It is important to use in mini electronics. product. Such as flashlights, mini speakers, loudspeakers, etc. 2. 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, with a relatively small nominal capacity. A bit larger than the 10440 battery, usually 1600mAh, with superior discharge performance. The most important use category is consumer electronics, such as wireless audio, electric toys, and digital cameras. 3. 16340 battery 16340 battery is a kind of lithium battery with a diameter of 16mm and a height of 34mm. Because the height of the ruler is a little shorter, and the capacity is not small, it is used in strong light flashlights, LED flashlights, headlights, and laser lights. , Lighting fixtures, etc. often appear. 4. 18650 battery The 18650 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 watt-hours/kg, so this battery is a battery with a better price-performance ratio. , 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 battery capacity of about 10 kWh, such as in mobile phones and laptops. And so on small appliances. 5. 21700 battery The 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, it is widely used in digital, electric vehicles, balance vehicles, solar energy lithium battery street lights, LED lights, power tools, 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 continuous processing in large quantities. ②The specific surface area of u200bu200bthe cylinder is large, and the heat dissipation effect is good. ③ Cylindrical lithium batteries are generally sealed batteries, and there are no maintenance problems during use. ④Lithium battery shell has high pressure resistance, and there will be no phenomena such as square, flexible packaging battery expansion during use. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.