Causes and solutions of polymer battery expansion drum

著者：Iflowpower – Fornitur Portable Power Station

Causes and solutions of polymer lithium ion battery expansion drum. Polymer lithium-ion battery, lithium iron phosphate ion battery, etc. are very frightened by short-circuiting the battery, short circuit outside the battery, overcharges these.

The lithium ion battery drum is due to the cumulative cumulative cumulative cumulus of polar plates, and the correct usage is that the amount of power is only used in most cases, and only a complete discharge and complete charging are performed in a very small number of cases. maintainance. What is the cause of polymer lithium ion battery? Polymer soft bag lithium ion battery is called a lithium polymer battery, with high energy density, miniaturization, ultra-thin, lightweight, and high safety compared to liquid lithium ion batteries Sex a variety of obvious advantages.

But the disadvantage is also constant, it is easy to have drum phenomenon. Polymer lithium ion battery drums, indicating that the battery has been broken, your battery should be polymer lithium electricity. Battery over charge or high temperature discharge can be like this.

After charging is full, the theory is designed to stop charging. Users can only pay attention to the security specification during use. Important is internal factors such as battery quality, charging management.

The structure of a polymer lithium ion battery before analyzing the cause of the polymer lithium ion battery expansion and the control method. Important construction of polymer lithium ion batteries include three elements of positive electrode, negative electrode and electrolyte. The so-called polymer lithium ion battery is a battery system that uses high molecular materials in these three important structures.

In the currently developed polymer lithium ion battery system, the polymer material is important to be applied to the positive electrode and electrolyte. The positive electrode material includes a conductive polymer polymer or an inorganic compound employed in a general lithium ion battery, and the electrolyte can be used, or the organic electrolyte, general lithium ion technology uses liquid or colloidal electrolyte, so Sturdy secondary packaging to accommodate combustible active ingredients, which added weight, and also limits the flexibility of size. There is no excess electrolyte in the polymer lithium ion process, so it is more stable, and it is difficult to cause dangerous conditions due to excessive charging, collision or other damage, and excessive use.

Thickness of lithium ion embedding. When the battery is charged, the lithium ion is taken out from the positive electrode, causing an increase in the negative electrode spacing, and the expansion, generally, the thicker of the battery, the larger the expansion of the expansion;. During the manufacturing process, such as slurry dispersion, C / A is more discrete, temperature control directly affects the degree of expansion of the battery.

In particular, water, because high-active lithium carbon compounds formed by charging are very sensitive to water, thus happens in a fierce chemical reaction. The gas in which the reaction occurs causes high pressure in the battery, and the expansion behavior of the cell is added. Polymer soft bag lithium-ion battery flatulence drum bag is related to the mass of lithium ion battery, method, environment, etc.

1. Poor package: air moisture in the production process into the interior of the cell, causing electrolyte to decompose gas. 2.

Electric wire content exceeds the standard: In the process, once the water content exceeds the standard, the electrolyte will fail the gas. 3. Corrosion: Polymer soft bag lithium-ion battery cores have corrosion, aluminum layer is reacted, lost to water barrier applications,.

4. Surface damage: damage is damaged, piercing the moisture to enter the interior of the battery. In addition, the chemical characteristics of lithium materials are too lively, which brings extremely high hazardous.

When the lithium metal is exposed to air, it will have a fierce oxidation reaction with oxygen. 5. Broken: Aluminum material is easy to deform, gently, the larger the battery, the greater the air bag, the more easily damage it.

6. Short circuit: positive and negative contact results in short circuit, the polymer lithium battery is intuitive and even smoke. 7.

Internal short circuit: polymer lithium ion battery isolation membrane shrinkage, curl, breakage, burr-puncture film, etc., can cause internal disconnections, so that drum. 8.

Overcharge, overproduction: The polymer soft bag battery is overchaled or overlapping, and the protective plate is abnormal, and the battery core will seriously discharge. Polymer lithium ion battery drum pack solution 1. If the mobile phone battery has been charged, use the finger first to find the void of the battery, with a small hole to poke a small hole, let the air run out.

2. Can replace the new polymer lithium ion battery pack to replace. During the charging process, it should be prevented from being charged, which can protect the battery is not harmful, and can also save energy.

Lithium-ion battery manufacturers must strictly control moisture, control turnover, baking time and temperature. The user finds that the lithium-ion battery pack drum must stop using, take pictures or video, otherwise the product organizer may not pay off. You can tell people around you, buy things, you have to stay, the product is broken to take evidence.

The polymer lithium ion battery drum is already a big problem, it is not recommended to use. It may be the consequence of short circuit, fever, smoke, combustion, etc. Lithium-ion batteries have strict requirements for chargers, and can not be able to take the power supply to charge the power supply.

It must be used to use the charger dedicated to lithium ion batteries. If the charger used does not meet the requirements, the polymer lithium Ion battery drum bag, the weight, there is a safety accident, and even the explosion is possible. Polymer lithium-ion batteries are often used on MP3, smart tablet, with advances in battery technology, boostering this phenomenon is increasing, and basically a probability problem.

The battery drum is a very common problem. After we encounter such a situation, the best solution is to replace new batteries.