Ftex Jun 2026

If you design a battery material based on 0K simulations, you might be devastated when it fails at room temperature because the diffusion barriers changed due to thermal expansion. This is where FTEX comes in.

Since "FTEX" can refer to a few niche technical concepts (most notably the method in computational physics/materials science, or occasionally a specific file extension format), I have written this post focusing on the scientific concept, as it is the most substantial topic for a "solid" blog post. If you design a battery material based on

When you turn up the temperature, things get complicated: things get complicated: