There is no hidden power in the cell phone battery and it cannot be activated even if it is discharged.
There is a rumor circulating on the Internet: When the mobile phone battery is low, press the *3370# key and the mobile phone will restart. Once the startup is complete, you will find that. battery power increased by 50%. It's just a lie passed down from generation to generation.
※#3370# is a command to enable the "full rate voice encoding" feature in old-style Symbian system mobile phones. This order not only cannot increase power, but also increases power consumption.
Detailed information:
This claim that "the first three charges take more than 12 hours" relates to rechargeable batteries from the 1990s. Nickel-cadmium batteries of the time had a memory effect and had to be completely discharged to be guarantees. battery capacity.
Our current cell phone batteries are all lithium-ion batteries. For lithium-ion batteries, normal use is a discharge process. There are several points to note when discharging lithium batteries:
1. The discharge current should not be too large. Excessive current will cause internal heating of the battery and may cause permanent damage. On mobile phones this is no problem and can be ignored.
2. Never overload! Internal storage of electrical energy in lithium batteriesst obtained by a reversible chemical change in electrochemistry. Excessive discharge will cause an irreversible reaction of this chemical change. Therefore, lithium batteries are more afraid of over-discharge once the discharge voltage is lower. exceeds 2.7V, it may cause the battery to be discarded.
Luckily, cell phone batteries have protection circuits inside. Before the voltage gets low enough to damage the battery, the protection circuit will come into effect and stop discharging.
Reference:
Summary: Battery recycling is currently a popular industry and the technologies used include hand sorting recycling technologyl, fire method recycling technology and wet recycling technology, the most commonly used equipment is lithium battery recycling and processing equipment. Its working principle is to shred the shell of raw materials with shredding equipment, and then crush them through the coarse crusher. , then enter the particle crusher. After peeling and grinding, they enter the micro-powder classifier for separation and processing. The residual ash is collected by the cyclone separator and the pulse dust collector at the rear. What are the specific battery recycling and processing technologies and what are the principles of battery recycling and processing equipment? 1. What are the recycling and treatment technologies for batteries?
1. Manual sorting and recycling technology
Generally, dry batteries are classifieds then briefly.The single machine is opened and the zinc skin, plastic cover, carbon rod, etc. are removed. are separated manually. The remaining mixture, such as manganese stone, is returned to the brick kiln for calcination to make dehydrated products. simple and easy to implement, but it requires a lot of work. The economic benefit is not great.
2. Fire recycling technology
Generally, dry batteries are classified and broken, then sent to the rotary kiln at high temperatures of ~ degrees Celsius, zinc and zinc chloride are oxidized. In order for the zinc oxide to be discharged with the flue gas, a cyclone dust collector is used to recover the remaining zinc oxide and manganite which enter the residue, and then the manganese and other substances are subsequently recovered. easy to implement. General foundries do not need to add recyclable zinc.
3. Technologyie wet recycling
Based on the principle that zinc and manganese dioxide are soluble in acid, used dry batteries are classified and crushed, then placed in a leaching tank and diluted. Sulfuric acid (~/L) is leached to obtain a zinc sulfate solution. Metallic zinc can be obtained by electrolysis. After the filter residue is washed and separated to separate the copper cap and carbon rod, the residue and manganite are calcined. The methods used include the roast-leach method and the direct leach method.
2. What is the principle of battery recycling and processing equipment
The most common battery recycling and processing equipment is lithium battery recycling and processing equipment. Let's take a look at its working principle. .
Principle of battery recycling and treatment equipmentlithium batteries: Lithium battery recycling and processing equipment shreds the raw material casing with shredding equipment, then crushes them within 10mm through a coarse crusher, then enters the particle crusher to peeling and crushing. It enters the micro-powder classifier for separation and processing, and the residual ash is collected by the rear cyclone separator and pulse dust collector.
This lithium battery positive and negative electrode sheet processing equipment is based on the structure of the positive and negative electrodes of lithium batteries and the material properties of its constituent materials, copper and carbon powder. hammer crushing, vibration screening and airflow sorting. The process separates and recycles negative electrode materials from waste lithium batteries. The complete set ofThe equipment works in a negative pressure state, without dust leakage, and the metal sorting effect is good.