September 1, 2020
The best use method of mobile phone battery and battery performance test
Mobile phone battery usage
Mobile phone batteries use lithium-ion batteries, which are composed of four main parts: positive electrode material, harmful electrode material, separator, and electrolyte. Before leaving the factory, the mobile phone battery needs to go through the processes of filling electrolyte, forming, charging, and discharging, and dividing the capacity to make the battery in an activated state. When the mobile phone battery use for the first time, it is best to perform a full charge and discharge (after the battery is fully charged to 100%, and then use the low battery reminder) to activate the battery.
It takes some time for the mobile phone battery to reach the user after leaving the factory. During this process, the battery has not to use for a long time, and the material will become passivated, so the battery needs to be fully charged and discharged. Do not overcharge or over-discharge the battery in the mobile phone, which will seriously damage the performance of the battery and may also cause the battery to swell and cause damage to the battery. Lithium-ion batteries have no memory effect. Generally, they can fully charge in 2-3 hours. Even a new mobile phone battery does not need to be recharged for 12 hours in the first three times for activation.
This method is aimed at the previous nickel-cadmium battery because the nickel-cadmium battery has a memory effect, so it needs to charge to activate continuously. With the development of fast-charging batteries and fast-charging technology, mobile phone batteries have evolved to a fully charged state in just about an hour, making it more and more convenient to use.
Mobile phone battery testing divides into three parts, one is battery safety performance testing, the other is battery environmental performance testing, and the third is battery electrochemical performance testing. The purpose of the battery safety performance test is to reduce the danger of a 3C lithium battery in use. The main test items include overcharge test, squeeze test, impact test, puncture test, impact test, vibration test, etc., to ensure that the mobile phone lithium battery does not catch fire, short circuit, or explode during the trial, which means that it has passed the test and achieved safety performance standard.
The mobile phone lithium battery can only be qualified for application after all three tests passed. In the test, it is necessary to use a test connection module to complete, such as a high-current shrapnel micro-needle module that can conduct current and transmit signals. The specific role is:
1. For mobile phone lithium battery testing, the high-current shrapnel micro-needle module can send current in the range of 1-50A, and the connection is stable without current attenuation.
2. In the small pitch, for the pitch value between 0.15mm-0.4mm, the high current shrapnel microneedle module can pass directly, with strong adaptability and reliable contact.
3. Under the high-frequency test of the mobile phone lithium battery, the high-current shrapnel microneedle module has an average service life of 20w times and can be used continuously without replacement.