As a key microporous film, lithium battery separators isolate electrodes and conduct lithium ions. Widely used in EVs, 3C products, energy storage, power tools and special devices, they guarantee battery safety, efficiency and durability.
As a key microporous film, lithium battery separators isolate electrodes and conduct lithium ions. Widely used in EVs, 3C products, energy storage, power tools and special devices, they guarantee battery safety, efficiency and durability.
Item. | Product width (mm) | Thickness (mm) | Production speed (m/min) |
PE/PP/PA/PET mono-orientation stretching film line | 500-3000 | 10-300 | 30-250 |
BOPE lithium battery separator film line (Bi-orientation stretching) | 500-8500 | 5-20 | 60-150 |
BOPP/BOPET Bi-orientation stretching film line | 3000-9000 | 3-400 | 30-500 |
BOPA Bi-orientation stretching film line | 3000-7500 | 10-30 | 150-400 |
Bi-orientation stretching equipment
Adopts advanced fully closed-loop tension, speed, and temperature synchronization control system, the film is ensured to achieve highly uniform and precise stretching in both longitudinal (MD) and transverse (TD) directions, endowing the products with excellent mechanical, optical, and dimensional stability. Optimize the hot air circulation system and heat recovery technology of the oven, significantly reduce energy consumption, and improve production efficiency. The production line design meets the stable production needs of large width and high line speed, helping customers achieve economies of scale.
Providing customized solutions for functional special films
We are well aware of the strict requirements of functional films (such as high barrier films, optical films, lithium battery separators, photovoltaic backsheet films, release films, special surface treatment films, biodegradable films, etc.) for specific properties (barrier properties, light transmittance, weather resistance, electrical properties, surface characteristics, environmental friendliness, etc.). Our company can customize and design various high-precision stretching film units according to customer requirements.
The lithium battery separator is a critical microporous membrane that prevents physical contact between the cathode and anode while allowing lithium-ion transport. Its key applications include:
Electric Vehicles (EVs): Enables fast charging, high power output, and thermal safety in battery packs.
Consumer Electronics (3C): Powers smartphones, laptops, wearables, and drones with thin, high-energy-density designs.
Energy Storage Systems (ESS): Provides long cycle life and safety for home, commercial, and grid-scale storage.
Power Tools & E-mobility: Supports high-rate discharge in cordless tools, e-bikes, and scooters.
Specialized Devices: Used in medical implants, aerospace, and flexible/wearable batteries where reliability is critical.
In short, wherever a rechargeable lithium battery operates, a separator ensures its safety, efficiency, and longevity.
Jwell started manufacturing screws and barrels in 1978, making it one of the earliest screw and barrel manufacturers in China. Its brand, "Jinhailuo", has become well recognized in the industry. In 1997, Jwell was established as a plastic extrusion machinery manufacturer and began the production of extrusion machinery. Today, Jwell is the vice president unit of the China Plastics Machinery Industry Association and one of the technology leaders in the extrusion machinery industry.
