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[Analysis Case] Numerical Evaluation of Active Material Volume by Three-Dimensional SEM

It is possible to calculate the volume of each substance from Slice&View data.

Using data from Slice&View (a method that repeatedly performs FIB processing and SEM observation to obtain dozens of continuous images), it is possible to calculate the volume of particles and other micron-sized objects. This allows us to obtain information such as the presence ratio and average volume of each substance within a certain volume. In this case study, we will introduce an example where the volume of active material was calculated from the Slice&View analysis results of a lithium-ion secondary battery cathode, and the presence ratio was determined.