The importance of NMP solution concentration detection in lithium battery production

The importance of NMP solution concentration detection in lithium battery production

Methyl N-methylpyrrolidone is a highly polar aprotic solvent. It is a colorless, transparent or light yellow oily liquid with a slight amine odor and is mildly irritating to the skin.

Physical properties of NMP

NMP has the characteristics of high boiling point, strong polarity, low viscosity, strong solubility, no corrosion, low toxicity, low volatility, non-flammable, good chemical and thermal stability, degradable,NMP supplier recyclable, easily soluble in water, Ethanol, ether, acetone, ethyl acetate, chloroform and benzene can dissolve most organic and inorganic compounds, polar gases, natural and synthetic polymer compounds.

Characteristics of NMP solutions

At present, my country's main technologies are used in coatings, lithium batteries, plastics, chemical industry production agents, agricultural chemicals, pigments, cleaning agents, insulating structural materials and other industries.nmp Here we need to mainly talk about the application of NMP in the lithium battery industry.

Application of NMP in lithium batteries

Currently, lithium-ion batteries are widely used in many fields. In addition to laptops, mobile phones,lithium from battery electric bicycles and electric cars in daily life, lithium-ion batteries also have important applications in the field of energy storage.

Industry research data shows that overall, lithium-ion battery manufacturing costs account for approximately 3% to 6% of manufacturing costs. It costs less than anode, anode, electrolyte and separator, but its role cannot be ignored. The market size and demand for NMP is also growing along with the growth of lithium-ion batteries, especially in energy storage and batteries.

The important role of NMP in lithium battery production

The use of NMP in lithium battery production is to dissolve/swell PVDF, and can also be used to dilute the slurry. Our concentration requirements are generally above 99.9%. NMP is one of the issues that enterprises mainly use as auxiliary teaching materials in the development process of lithium-ion battery manufacturing. It directly affects the quality of lithium-ion battery slurry coating and environmental protection work requirements.

NMP is a supporting solvent for PVDF (polyvinylidene fluoride), the positive electrode binder of lithium batteries, and is also a necessary supporting solvent for PVDF (polyvinylidene fluoride). NMP is miscible with water, PVDF, positive and negative electrode materials and other substances, so it is widely used in the preparation of lithium batteries. When making electrode sheets, NMP is used as a solvent to combine various electrodes such as binders, positive active materials, conductive agents, etc. The required substances are fused together so that the binder is in full contact with other substances and evenly distributed.

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