The heat-resistant, high-performance lithium battery separators supplier
Lithium battery separator, which is resistant to heat and high in performance, is a good option. Lithium ion battery separator is a basic battery component that saves the positive and negative electrode materials in batteries from being connected to each other, and works like a physical barrier.
Xiaowei has been concentrating on the studies and developments of battery separator as part of materials required for lithium batteries. They come along with the qualities of high-heat resistance and high-performance, thus through these new separators, the safety and cycle life of lithium batteries set to be enhanced.
The battery separators’ performance mainly depends on the raw materials and the manufacturing process. The separator’s durability, stability, and safety will determine the lifetime, energy density, and safety of lithium battery discharge rate.
The battery separator provided by Xiaowei has the following characteristics:
(1) It has a certain mechanical strength to ensure that it will not break under the deformation condition of lithium battery;
(2) It has good ion permeability to reduce the internal resistance of lithium battery;
(3) It has excellent electronic insulation to ensure effective isolation between lithium battery electrodes;
(4) It has the ability to resist chemical and electrochemical corrosion and has good stability in electrolyte;
(5) It has strong ability to absorb electrolyte;
(6) It has price advantage and is suitable for mass production of lithium battery manufacturing;
(7) It has low impurity content and uniform performance.
F.A.Q.
Polyolefin materials, such as polyethylene and polypropylene microporous membranes, are commonly used types of li ion battery separators because of their excellent mechanical properties, chemical stability and relatively low cost.
The thickness of separator in lithium ion battery is generally ≤25μm. Under the premise of ensuring a certain mechanical strength, the thinner the separator thickness, the better. The separators used in batteries for electric vehicles (EV) and hybrid electric vehicles (HEV) are around 40μm.
Safety is very important for large power batteries such as electric vehicle batteries. As a global leading battery separator manufacturer, Xiaowei produces battery separators with thicker thickness, stronger tensile strength and excellent puncture resistance.
There are two methods for manufacturing battery separators: dry separator manufacturing and wet separator manufacturing. The former is mainly used in low energy density batteries, such as energy storage batteries and electric bus batteries, etc.; it is mainly used in high capacity and high power battery fields, such as small batteries for mobile phones, laptops, and electric vehicle batteries.
Battery separator film play two main roles in lithium batteries:
1) Separating the positive and negative electrodes of lithium batteries to prevent the positive and negative electrodes from contacting and forming a short circuit;
2) The micropores in the film allow lithium ions to pass through, forming a charge and discharge circuit.