Why is the mobile phone battery not durable? What is the use of damage to the battery

2022/04/08

  Author :Iflowpower – Portable Power Station Supplier

Mobile phones are an indispensable electronic product in our daily life. Now more and more people can't open their mobile phones. The mobile phone brings us great convenience, but because frequent use of mobile phones will lead to electricity, it is particularly fast, and when you buy a mobile phone, you can take a year or two, and now it is basically a day.

Most of our mobile phones are mostly using lithium-ion batteries, and lithium-ion batteries are Sony research and developed for more than 20 years. At that time, it was more expensive, everyone used the battery of other materials. Before the lithium ion battery is popularized, the battery material employed is different, for example: nickel battery, there will be memory effect.

If the battery is charged dissatisfaction, it is still a cycle of a charging cycle. Multiple recurrence can cause rapid loss of battery life. First of all, when we charge the mobile phone, don't be 12 hours for the first new mobile phone before I believe it, this is completely wrong.

Now smartphones have a big difference in previous, we only need to charge electricity. At the same time, I have to talk about the mobile phone to charge overnight. This should not do this, excessive saturation is clear about the mobile phone battery, not only this, if it is a little not paying, it may cause an accident.

Lithium-ion batteries are very fragile, often using computer USB interface or charging treasure charging, very much on mobile phone. When the computer standby and work, the current of the USB interface has frequent fluctuations, and the mobile phone battery is not eliminated. Over time, the battery capacity will become small.

In addition, charging treasure can only solve the urgency, but long-term use of inferior charging treasure or charging treasure charging, mobile phone battery life will be greatly. Don't play while playing on the phone, especially playing large-scale mobile games. When the mobile phone is not charged, there will be a mobile phone hot, not to mention charging: When charging, play games, the battery not only adds power, but also supplies the main board.

In the long run, not only the battery is damaged, the motherboard will decrease life. Don't believe that mobile phone is placed in refrigerator for three days to restore power. Online rumors, mobile phone old batteries are placed in the refrigerator for three days to restore a component, and many netizens have tried it, they have their effects.

Expert Analysis: The mobile phone battery is not used for a while. When using it again, the electricity is usually partially restored. Frozen in the refrigerator will destroy the internal structure of the battery, although there will be short-term power rise, but it will lose the effect, which will seriously affect the battery life.

The electrolytic solution is used in the lithium ion battery, and the use of Li + transmission between the negative electrode, its ionic conductivity and SEI film formation performance have significant effect on low temperature performance of the battery. The performance of the electrolyte is largely dependent on its compositional materials: solvent, lithium salt and additives. The important way to improve the low temperature performance of the electrolyte is to add a co-solvent, develop a new lithium salt and add additives.

With regard to traditional solvents, such as EC, DMC, DEC, etc., the coagulation point is higher, and the electrical conductivity of the electrolyte composed of it will drop sharply under low temperature conditions. Therefore, many researchers are dedicated to finding a suitable solvent capable of reducing electrolyte coagulation points and viscosity, in order to obtain low-glossy points, high conductivity electrolyte.

When the solvent is selected, it is necessary to consider the physical and chemical parameters such as viscosity, dielectric constant, coagulation point, etc., as shown in Table 1. From the perspective of Kulen Law, the larger the dielectric constant in the same conditions, the stronger the dissociation, the greater the degree of ionization of the lithium salt, the higher the ion conductivity; the angle analysis of ion migration, the larger the viscosity, ion movement The slower the speed, the lower the ion conductivity.

It is known from the table, low-rolling point and low viscosity of ethyl acetate (EA), methyl formate (MF), methyl acetate (MA), and toluene (Tol),γ- butyl 丁 酯 (γ-Bl) is an alternative cant agent that improves low temperature performance of electrolyte.

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