With the rapid development of technology, smartphones have become an integral part of our daily lives. However, have you ever wondered what type of battery is that tiny battery inside your cell phone? Today, we will popularize the knowledge of cell phone batteries.

First, the basic types of cell phone batteries

At present, the vast majority of smart phones on the market are using lithium-ion batteries (Lithium-ion Battery), referred to as lithium batteries. This battery has been widely used in the field of cell phones for its high energy density, long life, no memory effect and other advantages.

Second, the working principle of lithium-ion battery

The working principle of lithium-ion battery is mainly based on the embedding and de-embedding process of lithium ions between the positive and negative electrodes. When charging, lithium ions are removed from the positive electrode material and embedded in the negative electrode material through the electrolyte; when discharging, lithium ions are removed from the negative electrode material and embedded in the positive electrode material through the electrolyte. This embedding and de-embedding process realizes the conversion between electric energy and chemical energy.

Third, the advantages of lithium-ion batteries

1. High energy density: the energy density of lithium-ion batteries is much higher than the traditional nickel-cadmium batteries and nickel-metal hydride batteries, which makes the cell phone to maintain a thin and light body at the same time, but also have a longer battery life.

2. Long life: lithium-ion batteries have a long cycle life, and can still maintain a high capacity after many times of charging and discharging.

3. No memory effect: lithium-ion batteries do not have a memory effect, that is, do not need to be like nickel-cadmium batteries, such as deep discharge, in order to restore battery capacity.

Fourth, lithium-ion battery precautions

Although lithium-ion batteries have many advantages, but also need to pay attention to some matters in the use of the process, such as avoiding over-charging and over-discharging, and avoiding high temperature environments, etc., in order to ensure the safety and stability of the battery.

In summary, the battery in the cell phone is mainly lithium-ion battery, which plays an important role in the field of cell phone with its unique advantages. With the progress of science and technology, the performance of cell phone batteries will continue to improve in the future, bringing us a more convenient experience.