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Battery film insulation, also known as battery separator film, is a thin, porous membrane that is placed between the positive and negative electrodes in a battery. It is essential for the safe and efficient operation of batteries, as it prevents the electrodes from coming into contact with each other, which would cause a short circuit.
Battery film insulation is typically made from a variety of materials, including polyimide, ceramic fiber, silicone rubber, and polyethylene terephthalate (PET). The choice of material depends on the specific requirements of the battery, such as the operating temperature, voltage, and current.
Thermal insulation is crucial to prevent overheating of the passenger compartment and to safeguard those within the car when lithium-ion batteries experience thermal runaway owing to different causes, such as internal and external short circuits.
Dendrites are needle-like crystals of lithium metal that can grow on the surface of the negative electrode in a LIB. If dendrites grow long enough, they can pierce the separator and cause a short circuit. Battery film insulation helps to prevent dendrite formation by providing a high-resistance barrier between the electrodes.
The demand for EVs is increasing due to government incentives, environmental concerns, and technological advancements. This is leading to a growing demand for battery film insulation.
New battery technologies, such as solid-state batteries, are being developed that offer improved performance and safety over traditional lithium-ion batteries. These new technologies will require new battery film insulation materials.
There is a growing focus on sustainability in the battery industry, and this is leading to the development of new battery film insulation materials that are made from sustainable materials or that have a low environmental impact.
The Global EV Battery Insulation Film Market accounted for $XX Billion in 2023 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2024 to 2030.
The demand for EVs is increasing rapidly due to government incentives, environmental concerns, and technological advancements. This is leading to a growing demand for battery film insulation, as batteries are a critical component of EVs.
Regulators around the world are increasingly focusing on battery safety, and this is leading to stricter regulations on battery film insulation materials. These regulations can be complex and costly to comply with, but they are essential for ensuring the safety of batteries.
Battery film insulation is typically made from a thin, porous membrane that is placed between the positive and negative electrodes in a battery. The thinner the separator, the lighter and more compact the battery can be. This is an important trend, as automakers are increasingly looking for ways to reduce the weight and size of EVs to improve their range and performance.
Solid-state batteries are a new type of battery that does not use liquid electrolytes. This makes them safer and more efficient than traditional batteries. However, solid-state batteries also require new types of battery film insulation. Manufacturers are working on developing materials that are stable in the high-voltage environment of solid-state batteries.
In order to enhance protection against short circuits and the spread of fire, SABIC introduces NORYL NHP8000VT3 resin, a product ideal for insulation film used in electric vehicle battery modules.
This proprietary technology-based high-performance resin is based on polyphenylene ether (PPO) and is designed to help fulfill the demanding requirements of higher-voltage batteries (600-800 volts).
It satisfies the UL94 V0 standard at 0.25 mm with non-brominated, non-chlorinated flame retardance, reaches the highest comparative tracking index performance level category (CTI PLC0), and offers ultra-thin-wall extrusion and thermoforming capability.
The resin offers a novel remedy for the shortcomings of existing polycarbonate (PC) and polypropylene (PP)-based insulation films by offering stronger CTI performance and thinner-wall FR capabilities. By contributing to occupant safety, weight reduction, and greater efficiency for extended range, it can aid in the advancement of EV battery technology.
The innovative solution meets strict flame retardancy standards and is the first thermoformable material in the industry to achieve the highest CTI performance level. Electrical insulators are assessed under exposure to conditions of stress, humidity, and contamination using the CTI PLC, which reveals the highest voltage a material can withstand without producing tracking.
In tests conducted by an independent laboratory, NORYL NHP8000VT3 resin received the maximum CTI performance level category of 0, suggesting that it can tolerate 600 volts or more.
The Global EV battery insulation film market is segmented by type, region and Battery capacity. The segmentation helps understand the demand of the product and the quality constraints.
Here is a list of some of the leading companies in the EV battery insulation film market: