Lithium-ion battery: A secondary battery (rechargeable battery) that relies mainly on lithium ions for movement between the positive and negative electrodes. During charging and discharging, Li + is embedded in and ejected from the two electrodes back and forth. During charging, Li + is removed from the positive electrode and is embedded in the negative electrode through the electrolyte. The negative electrode is in a lithium-rich state and the discharge is reversed.
Lithium batteries are divided into lithium batteries and lithium-ion batteries. Mobile phones and laptops are lithium-ion batteries, commonly known as lithium batteries. The battery generally uses the material that contains lithium element as the electrode, it is representative of the modern high-performance battery. The real lithium batteries due to the dangers of large, rarely used in everyday electronic products.