I am new to the lithium-ion battery field and working with high-nickel cathodes, specifically NMC. I am encountering issues during slurry preparation: after stirring, the slurry solidifies.
The slurry composition is 80:10:10 (NMC: PVDF dissolved in NMP: carbon black), stirred for 40 minutes with alternating vacuum and non-vacuum steps. I expected a viscous liquid, but it has consistently turned solid recently.
Could this issue be related to the reagents, the NMC, or the mixing process? Any insights would be greatly appreciated.
Thank you!
1.Stirring PVDF+NMP for 10-20 mins.
2.Stirring NCM and carbon black with the mixing liquid in step 1 for 10-20 mins.
3.The ratio of (NCM+PVDF+carbon black)/(NCM+PVDF+carbon black+NMP) should be less than 60%.
Thank you Mengyu Tian for the reply.
Is the NMP + PVDF solution used immediately after it is made?
- Badges
- Science topic
- Similar topics
- Linguistics
- Composition Studies
- Writing