14680

The designation "14680" commonly refers to a specific type of lithium-ion battery cell, widely used in consumer electronics, power tools, and electric vehicles. These batteries are part of the 18650 series, named for their cylindrical shape—18 millimeters in diameter and 65 millimeters in length—though the "14680" variant differs slightly in dimensions, measuring approximately 14 millimeters in diameter and 68 millimeters in length. They are designed to deliver high energy density, making them suitable for applications requiring compact yet powerful energy storage.

Developed by manufacturers such as Samsung, LG Chem, and Panasonic, 14680 cells often utilize lithium cobalt oxide (LiCoO₂) or lithium manganese oxide (LiMn₂O₄) cathodes, paired with graphite anodes. Their voltage typically ranges between 3.0 and 4.2 volts, and they can provide discharge currents of up to several amperes, depending on the model. These batteries are favored for their balance of energy capacity, safety features, and cost-effectiveness compared to other high-performance lithium-ion variants.

In addition to consumer electronics, 14680 cells are used in custom battery packs for hobbyist projects, such as RC vehicles and portable power stations. However, their use in larger-scale applications, like electric vehicles, is less common due to their smaller size relative to other battery chemistries. Proper handling is essential, as mishandling—such as overcharging, physical damage, or short-circuiting—can lead to thermal runaway, posing fire or explosion risks. Safety precautions, including the use of protective circuits and insulated packaging, are recommended when working with these cells.

The "14680" designation may also appear in unrelated contexts, such as product model numbers or part identifiers, but its most recognized application remains within the realm of rechargeable battery technology.