Explain the development status of 18650 lithium battery and 26650 lithium battery in detail

The 18650 lithium battery is a standard lithium battery model successfully developed by Japan SONY in 1992. It was born under the material level and manufacturing level at that time, and it emerged from the balance of battery cost and performance. In products such as notebooks, cameras, toys, and lighting equipment, 18650 batteries have been very mature and stable after years of development; at the same time, because of their long history, they have formed a relatively mature market. With the development of new energy use, the status of 18650 lithium batteries is gradually being impacted. Larger cylindrical lithium battery products and square battery products have appeared in the current market in large numbers, such as the 26650 lithium battery with relatively good stability and consistency. , 21700 lithium batteries and square batteries with various specifications. Because power lithium-ion batteries need thousands of batteries to be used together, higher requirements are placed on the consistency and safety of battery cell products. The fewer the number of power lithium-ion battery system management cells with the same capacity, the relative safety will be As it improves, the service life will increase. This puts forward higher requirements on the capacity of power lithium-ion batteries to reduce the use of the number of batteries and reduce the safety and life pressure of power lithium-ion batteries. Generally speaking, the performance of 18650 lithium battery is better. The 26650 lithium battery is the best partner for torches, and other electronic devices are less used, so the penetration rate is not high. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: Briefly describe the working principle of thin-film solar cells