![]() ![]() Ĭhemistry, performance, cost, and safety characteristics vary across types of lithium-ion batteries. Compared to other rechargeable battery technologies, Li-ion batteries have high energy densities, low self-discharge, and no memory effect (although a small memory effect reported in lithium iron phosphate batteries has been traced to poorly made cells). It also sees significant use for grid-scale energy storage and military and aerospace applications. It is the predominant battery type used in portable consumer electronics and electric vehicles. ![]() The electrolyte is typically a lithium salt in an organic solvent. Positive and negative electrodes remain positive and negative in normal use whether charging or discharging and are therefore clearer terms to use than anode and cathode which are reversed during charging. The positive electrode is typically a metal oxide the positive electrode is sometimes called the cathode as it acts as a cathode during discharge. This negative electrode is sometimes called the anode as it acts as an anode during discharge. The negative electrode of a conventional lithium-ion cell is typically graphite, a form of carbon. ![]() A 3.6 V Li-ion battery from a Nokia 3310 mobile phoneġ00–265 Wh/kg (0.360–0.954 MJ/kg) Ġ.35% to 2.5% per month depending on state of charge ģ.6 / 3.7 / 3.8 / 3.85 V, LiFePO 4 3.2 V, Li 4Ti 5O 12 2.3 VĪ lithium-ion or Li-ion battery is a type of rechargeable battery which uses the reversible reduction of lithium ions to store energy. ![]()
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