Lithium ion batteries have been widely used in consumer electronics products since their birth. In recent years, it has made great progress in the field of electric vehicles, making carbon-free travel possible. What is the difference between them? Generally speaking, in consumer electronic devices such as mobile phones and smart watches, lithium ion batteries with high energy density are used, such as lithium lithium cobalt oxide. Although such batteries may bring some safety hazards, but because of their small size and inseparability from the shape of the human body, the use environment is generally not so harsh, so the risk is generally controllable.

Affected by the use of nickel-metal hydride batteries, many people still like to completely recharge the mobile phone battery before recharging. For lithium batteries, this does not prevent the memory effect, and the lithium element has insufficient activity when the power is used up and then recharged, which will affect the battery capacity for a long time.

The memory effect is an effect that the battery contents crystallize due to the use of the battery. Generally, it only occurs in nickel-cadmium batteries, and nickel-hydrogen batteries are less. The reason for this is that the batteries are repeatedly charged and discharged incompletely. The temporary capacity of the battery is reduced, resulting in shortened talk time, so the nickel-cadmium battery needs to be fully charged to slow down the decline, while the lithium battery does not need to be used, recharge, no memory.

According to different electrolyte materials used in lithium ion batteries, lithium ion batteries are classified into liquid lithium ion batteries (Liquified Lithium-Ion Battery, referred to as LIB) and polymer lithium ion batteries (Polymer Lithium-Ion Battery, referred to as PLB).