History #

The 38120 battery size is a relatively new battery size, having been introduced in the early 2000s. It is a lithium-ion battery, and is a part of the 18650 family of batteries. The 18650 family of batteries are cylindrical, rechargeable batteries that are commonly used in consumer electronics. The 38120 battery size is a slightly larger version of the 18650, and is typically used in applications that require more power than the 18650 can provide.

Typical Chemistry #

The 38120 battery size typically uses a lithium-ion chemistry. Lithium-ion batteries are rechargeable batteries that use lithium ions as the charge carriers. They are lightweight and have a high energy density, making them ideal for applications that require a lot of power in a small package. The 38120 battery size typically uses a cobalt-oxide cathode and a graphite anode. This combination of materials allows for a high energy density and a long cycle life.

Typical Use #

The 38120 battery size is typically used in applications that require a lot of power in a small package. It is commonly used in consumer electronics such as laptops, tablets, and smartphones. It is also used in electric vehicles, as it provides a high energy density and a long cycle life.

Design #

The 38120 battery size is a cylindrical battery that is slightly larger than the 18650 battery size. It is typically constructed with a cobalt-oxide cathode and a graphite anode. The cathode and anode are separated by a separator, which prevents the cathode and anode from coming into contact with each other. The battery is then sealed in a metal casing, which protects the battery from damage and prevents it from shorting out. The battery is then connected to a circuit board, which allows it to be charged and discharged.