History #

The 26650 battery size was first introduced in the early 2000s and has since become a popular choice for many applications. The 26650 battery size is a cylindrical cell that measures 26mm in diameter and 65mm in height. It is larger than the 18650 battery size, which is 18mm in diameter and 65mm in height, and is commonly used in applications that require more power and capacity than the 18650 battery size can provide.

Typical Chemistry #

The most common chemistry used in 26650 batteries is lithium-ion. Lithium-ion batteries are known for their high energy density, meaning they can store more energy in a smaller package. They are also known for their long cycle life, meaning they can be recharged and discharged many times without losing their capacity. Other chemistries used in 26650 batteries include nickel-cadmium, nickel-metal hydride, and lead-acid.

Typical Use #

The 26650 battery size is commonly used in applications that require a high amount of power or capacity. These applications include electric vehicles, medical devices, and consumer electronics. In electric vehicles, the 26650 battery size is often used to power the motor and provide long-distance range. In medical devices, the 26650 battery size is often used to provide a reliable power source for medical equipment. In consumer electronics, the 26650 battery size is often used to power devices such as laptops, tablets, and cell phones.

Design #

The 26650 battery size is typically designed with a cylindrical shape and features a positive terminal at one end and a negative terminal at the other. The terminals are typically made from nickel, nickel-plated steel, or stainless steel. The cells are also typically sealed with a plastic or metal case to protect the cells from damage and to provide insulation. The cells are also typically designed with safety features such as overcharge and over-discharge protection, short-circuit protection, and temperature control.