Lithium-cobalt-oxide (LiCoO2)

History #

Lithium-cobalt-oxide (LiCoO2) was first developed in the 1970s by the Japanese company Sony. It was the first commercialized lithium-ion battery, and it quickly became the most popular type of lithium-ion battery. LiCoO2 is a compound of lithium, cobalt, and oxygen, and it is used in a wide variety of applications, including consumer electronics, electric vehicles, and medical devices.

Typical Use #

LiCoO2 is used in a variety of applications, including consumer electronics, electric vehicles, and medical devices. It is used in cell phones, laptops, digital cameras, and other portable electronics. It is also used in electric vehicles, such as electric cars, electric bicycles, and electric scooters. In medical devices, LiCoO2 is used in pacemakers, defibrillators, and other medical implants.

Design #

LiCoO2 batteries are typically designed as cylindrical cells, with a positive electrode made of lithium-cobalt-oxide, and a negative electrode made of graphite. The cells are sealed in a metal casing, and filled with an electrolyte solution. The cells are then connected in series or parallel to form a battery pack.

The design of LiCoO2 batteries is optimized for high energy density, meaning that they can store more energy in a smaller space. This makes them ideal for use in portable electronics, where size and weight are important considerations. LiCoO2 batteries also have a relatively long lifespan, with a typical life of around 500 charge/discharge cycles.

The main disadvantage of LiCoO2 batteries is their relatively high cost. This is due to the high cost of cobalt, which is an essential component of the battery. Additionally, LiCoO2 batteries are sensitive to high temperatures, and can be damaged if exposed to temperatures above 60°C.

Safety #

LiCoO2 batteries are generally considered to be safe, but they can be dangerous if not handled properly. LiCoO2 batteries can overheat if they are overcharged, or if they are exposed to high temperatures. This can cause the battery to swell, and in extreme cases, it can lead to a fire or explosion. To prevent this, LiCoO2 batteries should be charged and stored in a cool, dry place, and should not be exposed to temperatures above 60°C.