What is the difference between 18650 lithium ion battery and 26650 lithium ion battery?

1. The rated capacity is not the same: 26650 lithium-ion battery capacity can be up to 5000mAh, while 18650 lithium-ion battery capacity is 1200~2800mAh, Panasonic can achieve 3600mAh, but it is difficult to see on the market. 2. The diameters of the two batteries are different: the diameter of the 26650 lithium ion battery is 26 mm, and the diameter of the 18650 lithium ion battery is 18 mm. 3. The reference mass is different: the reference mass of the 26650 lithium ion battery is 94 grams, and the reference mass of the 18650 lithium ion battery is 43~47g. 4. The size of the battery is different; the volume of the 26650 lithium ion battery is larger than that of the 18650 lithium ion battery. They have the same cell height and different cell diameter. The 26650 cell diameter is 26mm, and the 18650 lithium ion battery has a diameter of 18mm. The 26650 lithium ion battery is thicker than the 18650 lithium ion battery. 5. The battery capacity is different; the capacity of the 26650 lithium ion battery under the same battery material is larger than that of the 18650 lithium ion battery. Assuming that the same ternary material 26650 lithium ion battery is generally around 5200mAh, the capacity of the 18650 lithium ion battery is mostly Around 2600mAh. 6. The application environment is different; 18650 lithium-ion batteries are used in lighting lamps batteries, industrial supporting lithium-ion battery packs, power tool batteries, electric bicycle batteries, power lithium-ion battery packs, etc., while 26650 lithium-ion batteries are used in integration Li-ion battery packs for solar street lights, energy storage stations, solar energy, etc. are more. 7. The battery life is different; the diameter of the 18650 lithium ion battery is only 18MM, the height is 65MM, the volume is small, and the capacity is not too large. The volume ratio of 26650 lithium ion battery must be larger than that of 18650, so there is a larger space filling material to achieve a larger capacity. The current capacity of 18650 is 2200, 2600, 3100MAH, etc., and the capacity of 26650 is generally 4000. 4200,4500MAH, leading to longer battery life. 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.