History #

The 18490 battery is a lithium-ion rechargeable battery, originally developed in the early 2000s by Sony Corporation. It was the first of its kind, and has since become a standard type of battery used in many electronic devices.

The 18490 battery was designed to be a small, lightweight battery with a high energy density. It was intended to be used in a variety of electronic devices, including portable media players, digital cameras, and mobile phones.

Typical Chemistry #

The 18490 battery is a lithium-ion battery, which means it is made up of a cathode (positive electrode) and an anode (negative electrode). The cathode is typically made of a lithium-cobalt-oxide (LiCoO2) or lithium-manganese-oxide (LiMn2O4) compound, and the anode is made of a graphite material.

The electrolyte used in the 18490 battery is typically a liquid solution of lithium salts in an organic solvent, such as ethylene carbonate or dimethyl carbonate. This electrolyte allows the lithium ions to move between the cathode and anode, generating an electric current.

Typical Use #

The 18490 battery is typically used in electronic devices that require a small, lightweight battery with a high energy density. It is often used in portable media players, digital cameras, and mobile phones.

The 18490 battery is also used in some electric vehicles, such as electric bicycles and scooters, as well as in some medical devices.

Design #

The 18490 battery is a cylindrical battery, with a diameter of 18mm and a length of 49mm. It has a nominal voltage of 3.7V, and a nominal capacity of around 1200mAh.

The 18490 battery is typically packaged in a plastic casing, which helps to protect it from physical damage. It also has a number of safety features built into it, such as a pressure relief valve, which helps to prevent the battery from over-heating or exploding.

The 18490 battery is typically recharged using a standard USB charger, which is connected to a power source such as a wall outlet or a car charger. The battery can also be recharged using a solar panel, or other renewable energy sources.