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PVDF Lithium Battery Grade
FLUORINE Products
PVDF Lithium Battery Grade
As a leading PVDF manufacturer in China, we are committed to the production of polyvinylidene fluoride resin (PVDF), an engineering plastic that combines the excellent properties of fluororesins with molding processability comparable to general-purpose resins. In the battery, which enables it to protect the internal components of the battery and extend battery’s lifespan.
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- Product Features
- Applications
- FAQ
Li-battery grade PVDF has been widely used in LFP, NCM, high nickel and separator coating of Li-battery.
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Zheflon ® PVDF for Lithium Battery Grade Product Features
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Adhesive performance
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PVDF exhibits excellent adhesive properties, allowing for effective bonding of various components inside the battery. It forms a strong bond that ensures tight structural integrity and reliability of the battery.
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Chemical resistance
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PVDF possesses outstanding chemical resistance, capable of withstanding the attack of electrolytes and other chemical substances present in the battery. This enables it to protect the internal components of the battery, extending its lifespan.
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Thermal resistance
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PVDF demonstrates good thermal stability, enabling it to maintain its performance even under high-temperature conditions. This is crucial for batteries operating in elevated temperatures, ensuring the performance and safety of the battery remain unaffected.
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Electrical insulation performance
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PVDF exhibits excellent electrical insulation properties, preventing issues such as short circuits within the battery. This contributes to enhancing the safety and reliability of the battery.
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Weather resistance | PVDF demonstrates good weather resistance, enabling it to withstand the impact of UV radiation, oxidation, and other environmental factors. This allows it to maintain stability and performance under various climate conditions. | |
High mechanical strength | PVDF possesses high mechanical strength and rigidity, enhancing the structural strength and stability between battery components. | |
Corrosion resistance | PVDF can resist the corrosion caused by acidic or alkaline media, protecting the internal components of the battery from damage. | |
Low water absorption | PVDF has low water absorption, reducing the penetration of moisture into the battery. This helps to maintain the stability and performance of the battery. | |
Ultra-low viscosity | PVDF exhibits low viscosity, making it easy to prepare into slurries and apply through coating or spray processes. This enhances its suitability for use in battery manufacturing. | |
Biocompatibility | PVDF demonstrates good biocompatibility and does not produce harmful effects on battery components and the environment. It is suitable for various application scenarios. | |
Tunability | The characteristics of PVDF can be adjusted by modifying the polymerization conditions, additives, and ratios, allowing it to meet the specific requirements of different battery applications. | |
Recyclability | PVDF is a recyclable material, aligning with environmental and sustainable development requirements. | |
Zheflon ® PVDF for Lithium Battery Grade Applications
Binder for cathode electrodes
Application for LFP
LFP is a lithium ion battery cathode material with high safety and stability. PVDF can be used as a binder to bond LFP powder and conductive agents together.
Application to NCM523 and NCM622
NCM has higher safety as the cathode material. PVDF is used as a binder to bond the cathode material and the conductive agent (e.g. carbon black) together to form a homogeneous electrode film. PVDF provides good bonding performance and ensures a strong connection between the cathode material and the conductive agent, improving the performance and cycle life of the battery.
Application in NCM811
NCM has higher safety as the cathode material. The cathode of NCM811 batteries consists of a high ratio mixture of nickel oxide, cobalt oxide and manganese oxide. Due to the high nickel content of NCM811 batteries, their electrochemical reactions are more violent and require a stronger binder to maintain the stability of the electrode. PVDF as a binder provides excellent bonding properties, ensuring a strong connection between the cathode material and the conductive agent in NCM811 batteries, increasing the cycle life and energy density of the battery.
Zheflon ® PVDF for Lithium Battery Grade FAQ
What is the difference between lithium battery grade PVDF and ordinary PVDF?
Lithium battery grade PVDF has a higher purity and stricter production standards compared to ordinary PVDF. It is specially treated to ensure the purity and consistency of the material to meet the requirements of lithium battery manufacturing.
What is the role of lithium battery grade PVDF for lithium batteries?
Lithium battery grade PVDF is commonly used as a binder and separator coating for Lithium batteries. It provides good bonding properties and chemical stability, protects the internal structure of the battery and improves the performance and safety of the battery.
Our Lithium battery grade PVDF products are suitable for which cathode materials?
LiFePO4、NCM523、NCM622、NCM811
What are the key properties of lithium battery grade PVDF?
Lithium battery grade PVDF possesses excellent chemical stability, high-temperature resistance, strong adhesion to active materials, and good mechanical strength. These properties enhance the performance and longevity of lithium-ion batteries.
What is the role of PVDF in lithium-ion batteries?
PVDF acts as a binder to hold together the active materials and conducting agents in the battery electrode. It also contributes to improved electrical conductivity and prevents electrode degradation during cycling.
Does lithium battery grade PVDF ensure long cycle life for lithium-ion batteries?
Yes, the use of lithium battery grade PVDF as a binder contributes to the long cycle life of lithium-ion batteries by maintaining the structural integrity of the electrode during charge-discharge cycles.
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Fondata nel 2007, è un'impresa tecnologica specializzata in materiali a base di fluoro. Promuoviamo l’energia rinnovabile e la sostenibilità attraverso l’innovazione.