NMP (1-Methyl-2-pyrrolidinone, >99.9%, Anhydrous) Solvent for Battery Cathode Slurry, 200 g or 1000 g/bottle, CBCSNMP

In lithium-ion battery manufacturing, N-Methyl-2-Pyrrolidone (NMP) is the industry-standard solvent used for preparing cathode slurries. Its primary role is to dissolve the binder (typically PVDF) and provide the necessary rheological properties for high-speed coating onto aluminum foil.

NMP is a "polar aprotic" solvent, which makes it exceptionally good at dissolving high-molecular-weight polymers like Polyvinylidene Fluoride (PVDF). (1) Binder Dissolution: PVDF is insoluble in water and most common alcohols. NMP fully "uncoils" the PVDF polymer chains, allowing them to wrap around the active material (NMC, LFP, etc.) and conductive carbon (Super P, CNTs). (2) Wetting and Dispersion: NMP has a low surface tension, which helps it penetrate the porous structure of the active material powders. (3) Viscosity Control: By adjusting the NMP-to-solid ratio, you can tune the slurry's viscosity to match your coating method (e.g., slot-die, doctor blade, or comma coating).

Part Number	CBCSNMP (C-BCS-NMP)
CAS	872-50-4
Chemical Formula	C5H9NO
Appearance/Form	Colorless Liquid
Purity	>99.9% (Battery Grade, Anhydrous)
Molar Mass	99.133 g·mol−1
Moisture	≤0.02%
Density	1.026~1.036 g/mL
Boiling Point	202°C
Viscosity (20°C)	~30 cP
Package Size	200 g or 1000 g/bottle (2 kg, 5 kg, 10 kg can also be supplied with better price)

References: 

1. W. Bauer, et al. Rheological properties and stability of NMP based cathode slurries for lithium ion batteries, Ceramics International, 2014, 40, 4591-4598.
2. R. Sliz, et al. Suitable Cathode NMP Replacement for Efficient Sustainable Printed Li-Ion Batteries, ACS Appl. Energy Mater. 2022, 5, 4, 4047–4058.