A lithium-ion battery is an electrochemical accumulator that uses lithium in its ionic form.
Principle of a lithium-ion battery
This battery discharges electricity by the reversible exchange of lithium ions between two electrodes: a graphite anode and a metallic oxide cathode. This exchange takes place in a liquid electrolyte.
Disadvantages of the lithium-ion battery
This device presents certain risks in the event of leakage, overheating or the formation of a lithium crystal structure between electrodes. This type of battery is fitted with different electromechanical systems to prevent these potential risks.
Advantages of the lithium-ion battery
The advantages of the lithium-ion battery include its high energy density (energy per unit of volume) and its high mass energy (energy per unit of mass). In addition, this type of battery is not affected by the memory effect and has a lower self-discharge rate.
These characteristics make this battery one of the best solutions currently available for supplying electricity to nomad devices (photo camera, mobile phone) or vehicles (hybrid car, electric car).
A lithium-ion battery powered car. © DR