What's in the phone's battery?

What's in the phone's battery?

Summary

What's in the phone's battery?

What's in the phone's battery?

What's in the phone's battery?

The lithium battery of the mobile phone is mainly composed of a plastic case upper and lower cover, a lithium battery core, a protection circuit board and a recoverable fuse.

The functions of each part are as follows:

(1) Lithium battery: Provides rechargeable power.

(2) Protection circuit board (PCB): to prevent the battery from overcharging, overdischarging and short circuit.

(3) Recoverable fuse (PTC): Positive thermistor plays a role of high temperature protection, and it is also a double protection after protection circuit board failure.

(4) Recoverable fuse (NTC): negative thermistor, which senses the internal temperature of the battery to protect it from low temperatures.

(5) Identification resistance: identify original batteries, non-original batteries cannot be used.