IPRO provides notebook brand manufacturers with battery waterproof and breathable solutions

As one of the most commonly used electronic products, laptops are ubiquitous in people's daily lives and work and play a very important role. The advantage of laptops lies in their portability and mobility, and the battery is a key indicator for evaluating laptop performance.

With the widespread use of laptops, more and more users are encountering the problem of battery swelling, which not only damages the device but also poses a significant safety risk, greatly affecting the user experience. In order to avoid such problems and further improve battery performance and lifespan, IPRO has successfully developed a set of solutions in collaboration with a well-known laptop battery manufacturer in the industry.

?

Laptop battery bulging problem

?

A laptop battery is composed of multiple battery cells, each with a shell that contains a positive electrode, negative electrode, and electrolyte. When we use a laptop, the positive and negative electrodes in the battery cells undergo a chemical reaction, producing an electric current. During this process, gases such as hydrogen and oxygen may also be produced. If these gases are not released in a timely manner, they can accumulate inside the battery cells, causing internal pressure to increase and leading to battery swelling.

?

In addition, improper charging conditions such as excessive voltage or current, overcharging or over-discharging, can also cause the battery to heat up and deform, exacerbating the problem of battery swelling. If the internal pressure of the battery becomes too high, it may rupture or explode, causing fires or injury to people. Therefore, it is crucial to ensure that the battery can breathe and release pressure without affecting its waterproof and dustproof properties.

?

IPRO Waterproof and Breathable Solution

The waterproof film developed and produced by IPRO is ePTFE film, which is a microporous film with a unique three-dimensional structure formed by using a special process to stretch PTFE powder horizontally and vertically. The film has the following significant characteristics:

?

1. The pore size of ePTFE film is 0.01-10μm, much smaller than the diameter of liquid water droplets and much larger than the diameter of conventional gas molecules;

?

2. The surface energy of ePTFE film is much lower than that of water, and the surface will not be wetted or produce capillary penetration;

?

3. It has a temperature range of -150℃ to 260℃, and is resistant to acid and alkali with excellent chemical stability. Due to its excellent performance, IPRO waterproof film can completely solve the problem of battery bulging. While balancing the pressure difference inside and outside the battery shell, it can achieve IP68 waterproof and dustproof.

IPRO has advanced microporous membrane R&D and manufacturing technology, and has accumulated long-term technical experience in the field of waterproof and breathable. We are able to provide customized modular breathable products for global customers, and continuously provide higher value propulsion assistance for industry customers.

?