Digital Analysis of Battery Separator Structures
PDF tutorial
Even though battery separators are not active components of lithium-ion batteries, their microstructure has a significant influence on ion transport—and thus on battery performance, efficiency, and service life. A deeper understanding of this structure opens up great potential for optimizing battery design.
With GeoDict software, real separator structures can be analyzed, simulated, and optimized in a targeted manner—purely digitally, based on high-resolution FIB-SEM scans.
In this PDF tutorial you will learn step-by-step:
- Import and customize structural data: Import a segmented FIB-SEM scan of a Celgard® PP1615 separator and prepare it for analysis.
- Analyze microstructure: Calculate geometric parameters and transport properties such as tortuosity and effective diffusion.
- Identify representative volume (REV): Select a structurally meaningful area for further simulations.
- Simulate interaction: Analyze the interaction between separator and electrolyte and simulate mechanical deformation.
- Properties in deformed state: Evaluate the structural and transport properties after mechanical loading.
A publicly available FIB-SEM dataset of the Celgard® PP1615 separator, provided by the MaDE group at ETH Zurich (DOI link), serves as an example.
The tutorial is aimed at battery developers, materials researchers, and engineers who want to digitally investigate and improve separators in terms of transport behavior and mechanical stability.
Forgot your password?
Please enter your username or email address. Instructions for resetting the password will be immediately emailed to you.
Not registered yet? Register for free and enjoy all the benefits.
