The impact of electrode particle size and shape on battery slurry viscosity
Using Morphologi G3 to monitor and control the electrode particle characteristics and viscosity of battery slurries
Batteries are ubiquitous in modern life and our reliance on them has never been greater. Therefore, ensuring optimum battery performance through manufacturing control is of increasing significance. In previous application notes we have discussed the importance of controlling the size of particles used in the manufacture of battery materials  and the impact of carbon microstructure in graphite electrodes on battery performance . Shape is also an important factor to consider and control, as irregular shaped particles not only reduce packing density, but they can lead to the formation of a high viscosity electrode slurry. In this third application note on batteries, we consider the role of size and shape on the viscosity of the electrode slurry
The typical structure of a battery electrode is given in Figure 1. The electrode is usually fabricated by applying a slurry of particles in suspension onto a metal foil.
The slurry in question is composed of electrode particles (anode or cathode), small carbon particles to aid conduction, and binder material (composed of solvent and polymer) to hold the structure together. The concentration of particles in the slurry is high, representing between 20-40 % of the total by weight. Consequently, the particle properties have a significant impact on the physical properties of the resultant slurry.
Enjoy our FREE content!
Log in or register to read this article in full and gain access to The Analytical Scientist’s entire content archive. It’s FREE and always will be!
If you don’t have an account you can:
REGISTER NOW – it’s FREE and always will be!
You will benefit from:
- Unlimited access to ALL articles including Application Notes
- News, interviews & opinions from leading industry experts
- Receive print (and PDF) copies of The Analytical Scientist magazine
Or Login as a Guest or via Social Media
This will allow you to read this article but you will only have limited access to The Analytical Scientist.Login as Guest Facebook Google+ LinkedIn Twitter