Anytime a powder is used in a process for a specific purpose, its behavior is often predicted by physical properties of the powder. Determining the physical properties of a cathode powder can be used to decide which properties are critical to the performance of the cathode, as well as the battery in which it is used. A sample of lithium iron phosphate (LFP) powder was characterized to determine the following physical properties:
- Specific Surface Area
- Porosity and Pore Size Distribution
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- Particle Size and Size Distribution
A sample of the same batch of LFP was coated to make the surface hydrophobic using a process called Atomic Layer Deposition, and the same physical properties were determined on the coated LFP. The difference in the physical characterization data demonstrates the sensitivity of the techniques used and aids in the detection of possible critical physical qualities required to improve cathode and battery performance.
