EXCELSPERSE™ FX 9000

An advanced wetting & dispersing additive for high-performance, stable LFP cathode slurries

EXCELSPERSETM FX 9000 is a high-performance polymeric dispersant engineered specifically for lithium iron phosphate (LFP) cathode slurries. It directly links slurry stability and rheology to enhanced cell-level performance, enabling battery manufacturers to achieve higher energy density cell quality.

Addressing Key Challenges in High-Solid LFP Manufacturing

Advancing LFP battery technology requires cathode slurries with ever-higher solid content to maximise energy density. This push intensifies formulation challenges: slurry instability, excessive viscosity, and particle agglomeration can lead to coating defects, batch inconsistencies, and compromised cell electrochemical performance.

EXCELSPERSETM FX 9000 directly addresses these hurdles. Its advanced chemistry provides robust stabilisation at solid loadings exceeding 60%, ensuring uniform particle distribution and long-term slurry stability. By reducing viscosity by up to 30% at >65% solids compared to standard dispersants, EXCELSPERSETM FX 9000 significantly enhances cathode slurry processability, allowing for faster mixing, smoother coating, and lower solvent demand. Furthermore, EXCELSPERSETM FX 9000 performance remains consistent across a broad temperature range, providing reliable processing under varied manufacturing conditions.

The outcome of using EXCELSPERSETM FX 9000 is a direct link between superior slurry quality and enhanced cell-level results: improved electrode uniformity, lower internal resistance (DCIR) for better C-rate capability, and greater long-term cycling stability.

 

Built on Expertise in Dispersion & Rheology Science

Elementis applies deep expertise in rheology and surface science to the evolving needs of the battery industry. EXCELSPERSETM FX 9000 represents focused solution developed through close collaboration with LFP battery cell producers and leading external product development laboratories resulting in real-world cell performance improvements.

We’re adding:

  • High Solids Stability: Enables stable slurries at >60% total solids content allowing for higher density, more electrochemically active electrodes that increase battery power and provide reliable performance.
  • Significant viscosity reduction for faster processing: Reduces viscosity by up to 30% at >65% solids compared to commonly used LFP dispersants which leads to less organic solvent use, shorter drying times and energy savings.
  • Better uniform battery electrode conductivity: Lowers the direct current internal resistance (DCIR) of the cathode to ion flow, resulting in improved charge-rate (C-rate) performance and higher overall energy efficiency.
  • Higher temperature performance and safety: Improves retention and reduces self-discharge during thermal stress.