Predictive Modeling of Creep Driven Pore Growth under Cyclic High Temperature Tooling Loads
Predictive creep modeling quantifies elevated temperature pore evolution in solid state cell tooling to establish precise hold times and prevent yield loss.
Micro Ct Pore Mapping
Meaning
Non destructive imaging technique that utilizes high resolution X ray computed tomography to visualize and quantify the internal void distribution within battery electrode layers. Micro ct pore mapping provides a three dimensional view of the tortuosity and porosity that govern ion transport. It allows researchers to optimize the slurry coating process for better energy density.
Scanning Mechanism
Rotating the sample within a microfocus X ray beam captures thousands of two dimensional projections from various angles. Software then reconstructs these images into a volumetric model where micro ct pore mapping identifies individual air gaps and active material particles. The resolution often reaches sub micron levels.
Data Analysis
Algorithms calculate the volume fraction of the pores and their connectivity across the thickness of the electrode. If micro ct pore mapping shows a lack of connected channels, the battery will likely suffer from high internal resistance and poor fast charging performance. The map guides the calendering process.
Quality Control
Comparing the virtual model to the theoretical design helps verify that the manufacturing line produces consistent coating quality. This micro ct pore mapping application detects internal defects such as delamination or agglomeration without destroying the finished cell. Regular audits of electrode morphology ensure that every batch meets the electrochemical requirements for high power discharge.
High resolution scans provide the evidence needed to adjust the drying oven temperatures or the speed of the coating knife.