What is the cause of polymer battery drum? How to fix

2022/04/08

  Author :Iflowpower – Portable Power Station Supplier

Causes and solutions of polymer lithium battery expansion drum. Polymer lithium batteries, lithium iron phosphate batteries, etc. are very afraid of short-circuit in the battery, short circuit outside the battery, overcharge.

Lithium battery drums are caused by the render of dendritic crystalline accumulation due to polar plates. In most cases, only half of the upper and lower power is started, and completely discharge and complete charging maintenance in a very small number of cases. Causes of polymer battery drums and repair polymer soft boosted lithium batteries are called lithium polymer batteries, with high energy density, miniaturization, ultra-thin, lightweight, and high safety compared to liquid lithium batteries.

But the disadvantage is also constant, it is easy to have drum phenomenon. Polymer lithium battery drums, indicating that the battery is 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. The main factors such as battery quality, charging management.

Before analyzing the expansion of the polymer lithium battery and the control method, the structure of the polymer lithium battery is applied. The main structure of the polymer lithium battery includes three elements of the positive electrode, negative electrode and electrolyte. The so-called polymer lithium battery is that at least one or more of the three main structures uses polymer materials as the main battery system.

In the currently developed polymer lithium battery system, polymer materials are mainly applied to positive and electrolytes. The positive electrode material includes a conductive polymer polymer or an inorganic compound employed in a general lithium battery, and the electrolyte can be used in solid or colloidal polymer electrolyte, or an organic electrolyte, general lithium ion technology, a liquid or colloidal electrolyte, therefore requires a solid Secondary packaging to accommodate flammable active ingredients, which increases the 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 generated by the reaction causes high pressure in the battery, increasing the expansion behavior of the battery. Polymer soft bag lithium battery flat gas capsule is related to the quality of lithium battery, method, environment, etc.

1. Poor package: air moisture in the production process into the interior of the battery, 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 to generate gas. 3. Corrosion: Polymer soft bag lithium battery core has corrosion, aluminum layer is reacted, lost to water blockage, imaginary.

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 produce 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 battery isolation membrane shrinkage, curl, damage, burr puncture film, etc., can cause internal disconnection, so that drum bag. 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 battery drum package 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 will poke a small hole, let the air run out.

2. Replace the new polymer lithium battery pack. During the charging process, it should be avoided, which can protect the battery from harm, and energy saving and environmentally friendly.

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

The polymer lithium 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 batteries have strict requirements for chargers, and can not be able to use the power supply to charge the power supply.

Be sure to use the charger dedicated to the lithium battery. If the charger used does not meet the requirements, the polymer lithium battery drum , There is a safety accident, even the explosion is possible. Polymer lithium batteries are often used on MP3, smart tablets, with advances in battery technology, boostering this phenomenon in the process of use, and basically makes probability problems.

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

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