Unlocking the Nanoscale Secrets of Li-ion Batteries with Atom Probe Tomography (APT)
Lithium-ion batteries are at the core of our energy future—but improving their performance and lifespan means understanding them at the atomic level. In the study, we used APT to reveal the 3D nanoscale composition of NMC cathode materials (nickel, manganese, cobalt oxides), including how dopants like aluminum behave at grain boundaries.
Unlike X-ray methods, APT offers quantitative analysis of light elements such as lithium and oxygen with unmatched resolution. We confirmed precise element ratios and identified key microstructural features that influence battery performance.
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