Time Dependent Stability of Aqueous Based Anode Slurries

This technical report investigates the stability of aqueous-based anode slurries containing bio-derived binders, specifically carboxymethyl cellulose (CMC), using rheological methods. The study focuses on the impact of aging on slurry properties, particularly its flow behavior and viscoelastic characteristics. The report outlines the formulation of the slurry, which includes natural graphite, conducting carbon, CMC, and Styrene Butadiene Rubber, and emphasizes the importance of rheological measurements in assessing slurry stability over time. The findings indicate that the slurry demonstrates a decrease in stability as it ages, which can affect the manufacturing process and quality control. The report details the experimental setup, including the use of a rheometer for measuring viscosity and viscoelastic behavior, and presents data showing how the structural integrity of the slurry diminishes with time. This research is relevant for manufacturers aiming to optimize battery production processes while adhering to sustainability regulations.