Aramid, known as "aromatic polyamide fiber", is an innovative synthetic fiber specially designed for specific purposes. Prosperix International Inc. relying on its profound scientific research strength, has successfully developed an aramid industrialization technology with complete intellectual property rights, which has reached the international leading level.

In 2004, Prosperix International Inc. successfully achieved the industrialization of domestic meta-aramid, laying a solid foundation. Subsequently, in 2019, they further achieved the continuous and stable operation of a 1,000-ton para-aramid production line, marking a new step forward in technology. By 2023, what is even more remarkable is that the aramid coating production line covering tens of millions of square meters has successfully achieved continuous and stable operation, demonstrating the outstanding strength of Taihe New Materials in the aramid field.

In terms of performance, meta-aramid stands out for its excellent heat resistance, flame retardancy and good insulation. Para-aramid, on the other hand, has won wide acclaim for its outstanding heat resistance, high strength and high modulus. It is particularly worth mentioning that its strength is 5 to 6 times that of steel wire, and its modulus also reaches 2 to 3 times that of steel, making para-aramid stand out in many application fields.

一、 Excellent Performance of aramid Separators

Aramid coated separator, as an innovative heat-resistant separator, stands out among numerous separator products with its unique advantages. These advantages are specifically reflected in the following aspects:

Outstanding basic performance

Aramid coated separators perform well in terms of basic performance. The weight of its coating layer is lighter than that of ceramic diaphragms, with a lower specific gravity, making the overall structure more portable. Meanwhile, the aramid coating has a significant reinforcing effect on the base membrane, greatly enhancing the strength of the separator. In addition, aramid diaphragms also have excellent insulation performance, with a breakdown voltage strength higher than that of ceramic diaphragms, ensuring the safety of use.

Superior thermodynamic performance

Aramid coated separators also demonstrate excellence in thermodynamic properties. Its thermal shrinkage rate is comparable to that of ceramic diaphragms, and in some aspects, it even performs better. More importantly, the membrane-breaking temperature of aramid separators has been significantly increased to 250 to 400°C, a characteristic that makes them more stable in high-temperature environments. In addition, its high-temperature puncture resistance is also quite outstanding. It remains unbroken at a temperature of 300°C, further demonstrating its superior thermal stability.

Good electrolyte wettability

Aramid coated separators perform exceptionally well in terms of electrolyte stability. They not only resist electrolyte corrosion but also have excellent battery liquid injection efficiency. It absorbs liquid rapidly and has an extremely high liquid retention rate, ensuring the stable performance of the battery.

二、 Performance advantages of Batteries using aramid separators

Batteries using aramid separators have demonstrated significant advantages in performance. Its excellent electrolyte wettability not only enhances the stability of the battery but also improves the liquid injection efficiency. The rapid liquid absorption capacity and high liquid retention rate ensure that the battery can continuously and stably exert its performance.

1. Efficient manufacturing process:

The rapid liquid absorption capacity and high liquid retention rate of aramid separators have effectively enhanced the manufacturing efficiency of batteries. Its superior electrolyte wettability enables the battery preparation cycle to be shortened.

2. Excellent electrical performance:

The thermodynamic stability and high ionic conductivity of aramid separators provide a stable usage foundation for batteries in various extreme environments and ensure the high efficiency of ion transmission.

3. Excellent security performance:

Due to the excellent mechanical strength and stable structure of aramid separators, they can effectively reduce the risk of loss of control caused by the deformation of battery cells due to compression, thereby significantly enhancing the safety performance of batteries.

4. Significant cost-effectiveness:

By adopting aramid coating, the number of safety accessories required between cells and modules can be reduced during the battery manufacturing process, thereby achieving an overall cost savings of over 5%.

5. Application advantages in semi-solid and solid-state battery fields:

Aramid coated separators, with their adjustable porosity, stable structure and excellent strength, effectively enhance the cycle stability of semi-solid batteries and extend their service life.

三、The Wide application of Aramid coated Separators in the 3C& Power Fields

In actual market applications, aramid coated separators have been favored by many leading battery manufacturers. In the 3C field, foreign mobile phone brands such as PM have chosen aramid coated separators in the batteries of their flagship smartphones, significantly enhancing the battery's safety, charging speed and service life, and earning wide acclaim from users. In the field of power, electric vehicle manufacturers have also incorporated aramid coated separators into the batteries of their high-end series of models, aiming to enhance the safety performance of the batteries while increasing energy density and cycle life.