With the advancement of science and technology and the improvement of the quality of life, traces of electronic products are everywhere, and mobile phones are an indispensable necessity in human life. Whether it is the early Black King Kong phone or today's powerful smartphone, you need a power supply to operate.
There are two main types of batteries in early mobile phones, one is nickel-metal hydride and nickel-cadmium batteries, and the other is lithium-ion batteries. However, it is very rare to use nickel-hydrogen and nickel-cadmium batteries as power sources. Most of them are very rare. Lithium-ion batteries are used. In particular, consumers hope that mobile phones will have longer standby time and smaller size, so nickel-metal hydride and nickel-cadmium batteries have been slowly eliminated due to consumer expectations. Although nickel-metal hydride and nickel-cadmium batteries are superior to lithium-ion batteries in terms of price and replacement of batteries, nickel-hydrogen and nickel-cadmium batteries can still be seen in other electronic products; however, in terms of volume, weight and capacity, Nickel-metal hydride and nickel-cadmium batteries are not as good as lithium-ion batteries, so today's light and short electronic products are advertised, almost all using lithium-ion batteries.
Because of its powerful functions and high power consumption, the smart phone is a lithium-ion battery that requires large battery capacity and more durable power. When the battery of the mobile phone is low, the user usually charges the battery at any time with a charger or with a set of mobile power.
Volume / capacity of the lithium ion battery is both Electronics **
Rechargeable batteries can be divided into four categories according to their materials: lead-acid batteries, nickel-cadmium batteries, nickel-hydrogen batteries and lithium-ion batteries.
From the advantages and disadvantages of Table 1, nickel-cadmium, nickel-hydrogen and lithium-ion batteries are more suitable for use in electronic products; lithium-ion batteries are superior to nickel-cadmium in volume, weight and capacity (time of use of electronic products). Nickel-metal hydride batteries also have no memory effect, so lithium-ion batteries seem to be much more convenient for use in electronic products.
Longer life Lithium-ion battery charge/discharge voltage is key In general, lithium-ion batteries have a range of electrical safety limits. Due to the characteristics of the lithium-ion battery, when the battery voltage rises to the ** set voltage during charging, the charging should be stopped immediately to avoid the danger of the battery being damaged due to over-charging; when the battery is powered (discharged), the battery voltage drops. To ** set the voltage below the discharge will stop, to avoid the over-discharge to reduce the service life.
In addition, in order to ensure the safety of battery use, lithium-ion batteries must also be equipped with short-circuit protection to avoid danger; even if most lithium-ion batteries have protective circuits installed, choose a good charger or mobile power supply. This is still an important consideration.
