lítiovoiónové

Lithium-ion (often abbreviated as Li-ion or Li-ion) refers to a type of rechargeable battery technology. In a lithium-ion battery, lithium ions move from the negative electrode through an electrolyte to the positive electrode during discharge, and then back again during charging. This movement of lithium ions is what creates the electric current.

Lithium-ion batteries are popular due to their high energy density, meaning they can store a lot of energy in a relatively small and light package. They also have a low self-discharge rate, meaning they lose their charge slowly when not in use, and do not suffer from the memory effect that affected some older battery technologies, where repeated partial discharges could reduce the battery's maximum capacity.

These batteries are widely used in portable electronics such as smartphones, laptops, tablets, and digital cameras. They are also increasingly found in electric vehicles and in grid-scale energy storage systems. The exact chemistry and materials used in lithium-ion batteries can vary, leading to different types like lithium cobalt oxide, lithium manganese oxide, lithium iron phosphate, and lithium nickel manganese cobalt oxide (NMC), each with its own advantages and disadvantages regarding performance, safety, and cost.