[Analysis Case] Structural Evaluation of Positive Electrode Active Material in Secondary Batteries

Evaluation of particle size and crystal orientation of living materials, atomic-level observation is possible.

Lithium-ion secondary batteries undergo changes in the composition and crystal structure of the electrode active materials due to ion extraction and insertion during charging and discharging. As a structural evaluation of the positive electrode active material Li(NiCoMn)O2 (NCM), we assessed the particle size and orientation of primary particles using EBSD. Furthermore, we conducted high-resolution STEM observations on the primary particles whose orientations were confirmed, showcasing the atomic positions of light elements (Li, O) in ABF-STEM images and the atomic positions of transition metals (Ni, Co, Mn) in HAADF-STEM images. Measurement methods: SEM, EBSD, TEM Product field: Secondary batteries Analysis purpose: Shape evaluation, structural evaluation, product investigation For more details, please download the materials or contact us.

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