Solef® PVDF is a family of high-performance PVDF grades ideally suited for binder application thanks to their outstanding properties, such as:
- Electrochemical stability from 0 to 5 V vs Li+/Li
- Solubility in standard solvents such as NMP
- High temperature stability
When Solef® PVDF is utilized as binder, it guarantees durable adhesion at electrodes and mechanical integrity in the aggressive chemical environment of the battery.
Among different grades, it is possible to choose the Solef® PVDF grade according to its viscosity and performances. High molecular weight leads to improved performances, provided that optimized processing conditions are implemented.
Further developments with special focus on new environmental-friendly processes are on-going. Water based binders and binders with a better fit with different chemistries of active materials are being studied.