There are several types of lithium batteries, but the three most common types are:

1. Lithium-ion (Li-ion) batteries: Li-ion batteries are the most common type of lithium battery used in consumer electronics, such as smartphones and laptops. They are lightweight, have a high energy density, and can be recharged many times.
2. Lithium polymer (LiPo) batteries: LiPo batteries are similar to Li-ion batteries but are packaged in a flexible pouch rather than a hard casing. They are commonly used in small devices such as drones, remote-controlled toys, and portable power banks.
3. Lithium iron phosphate (LiFePO4) batteries: LiFePO4 batteries are a type of lithium-ion battery that uses an iron phosphate cathode instead of a cobalt or nickel-based cathode. They are known for their long lifespan, high power output, and safety. They are commonly used in applications such as electric vehicles, solar power systems, and backup power systems.

Each type of lithium battery has its own set of advantages and disadvantages, and choosing the right type of battery depends on the specific needs of the application.