Case study of failure analysis of oxide-based all-solid-state batteries.
It has high safety and can be used in various environments! Consistent analysis is possible.
We will introduce a case where a series of analyses, from identifying failure points to cross-sectional observation, was conducted on an oxide-based all-solid-state battery that was destroyed during reliability testing. Heat generation analysis revealed a strong tendency for heat generation on the side, and X-ray transmission observation showed a white linear contrast anomaly near the boundary where heat generation was observed in the X-ray transmission image. It is suspected that some abnormality is occurring in the white line area. When CP cross-sectional SEM observation was performed on the area where the anomaly was visible, layer delamination was observed. It is inferred that delamination occurred between the current collector and electrolyte layers due to the positive (negative) electrode layer expanding and contracting repeatedly during reliability testing. 【Case Overview】 ■ Sample Information: Oxide-based all-solid-state battery that experienced degradation due to charge and discharge testing ■ Heat Generation Analysis Result: A strong tendency for heat generation was observed on the side ■ Other Analysis Contents: - X-ray transmission observation - CP cross-sectional observation and elemental analysis using SEM *For more details, please refer to the PDF document or feel free to contact us.
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