To mitigate potential issues arising from trace impurities during lithium-ion battery manufacturing, Nippon Refine has successfully introduced a high-purity variant of NMP. This refined NMP undergoes a specialized treatment process, meticulously eliminating impurities to achieve an exceptional level of purity. Referred to as battery-grade NMP, this solution is specifically tailored for electrode applications in lithium-ion batteries.

Total solution for NMP gas recovery and refinement

In the manufacturing of lithium-ion batteries, a considerable volume of NMP is utilized and subsequently released as gas waste. Nippon Refine presents a comprehensive solution encompassing NMP gas recycling via dedicated equipment, followed by the refinement of the recycled NMP. The refined NMP has earned praise from customers for its exceptional slurry stability, effectively addressing concerns regarding PVdF damage.

NMP Gas Recovery System ECOTRAP

Exceptional purification capability!

The potency of NMP in exhaust gas is no more than 10 ppm.
Upon request, we can achieve a level of 0.2 ppm or less, in compliance with EU legislation.

Conserve both energy and costs.

Maximize absorption efficiency with water.
Use the heat energy in exhaust gas to concentrate NMP.
No steam or cold water needed.

Excellent safety standards!

No heating mechanisms needed.
Recycled solvents can be stored in a non-hazardous area.

NMP refining equipment

A reliable production system.

Large-scale production systems secured in Japan, China, and Taiwan.

Exceptional stability and quality!

Quality control system based on battery grade standards.
Quality maintenance while considering damage to PVdF.