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Description
N-Methyl-2-Pyrrolidone (NMP) Solvent for Lithium Battery Cathode Materials – Purity: 99.90%
Our N-Methyl-2-Pyrrolidone (NMP) is a high-purity polar aprotic solvent (≥99.90%) widely used in the fabrication of lithium-ion battery cathodes. Due to its strong solvency and high chemical stability, NMP efficiently dissolves polyvinylidene fluoride (PVDF) binders during electrode slurry preparation, ensuring excellent film uniformity and adhesion on current collectors.
This colorless transparent liquid has a high boiling point and low vapor pressure, making it ideal for processes that require thermal stability and minimal evaporation losses. NMP is compatible with a wide range of substances, including water, alcohols, ethers, esters, ketones, and halogenated hydrocarbons, enhancing its versatility across various battery manufacturing processes.
Technical Properties
| Property | Value |
|---|---|
| Purity | ≥99.90% |
| Appearance | Colorless Transparent Liquid |
| Molar Mass | 99.13 g/mol |
| Melting Point | -24 °C |
| Boiling Point | 202 °C (1013 hPa) |
| Density (20 °C) | 1.03 g/cm³ |
| Refractive Index | 1.465–1.470 |
| Flash Point | 91 °C |
| Explosion Limit (Vol%) | 1.3–9.5% |
| Ignition Temperature | 245 °C |
| Vapor Pressure (20 °C) | 0.32 hPa |
| pH | 7.5–10 |
| Solubility | Soluble in water, alcohol, ether, ester, ketone, aromatic and halogenated hydrocarbons |
Applications
Solvent for cathode slurry preparation in lithium-ion battery production
Effective dissolution of PVDF binders
Used in LiCoO₂, LiFePO₄, LiNiMnCoO₂, and LiMn₂O₄ based electrodes
Applicable in battery R&D, pilot lines, and industrial-scale production
Also used in pharmaceuticals, polymers, and semiconductor cleaning, though its battery application is most critical here
Additional information
| Milliliter | 100 ml, 500 ml, 1000 ml, 5000 ml |
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