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[Analysis Case] Local Area Evaluation of Positive Electrode Active Material in Secondary Batteries (C0614)

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[Analysis Case] Local Area Evaluation of Positive Electrode Active Material in Secondary Batteries (C0614)

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Composition, crystal structure, and chemical state evaluation near the surface of living materials are possible!

Our company conducts local area evaluation of positive electrode active materials for secondary batteries (C0614). It is known that in lithium-ion secondary batteries, the crystal structure of the active material surface and the valence of metal elements change due to ion extraction and insertion during charge and discharge, as well as degradation. In a case where TEM was used for local area evaluation to assess composition, crystal structure, and chemical state, it was found through EDX that AlOx is coated on the outermost layer. Additionally, electron diffraction and EELS revealed that the crystal structure and valence differ between the surface and the interior of the active material. [Measurement and Processing Methods] ■ [(S)TEM] Scanning Transmission Electron Microscopy ■ [TEM-EDX] Energy Dispersive X-ray Spectroscopy (TEM) ■ [TEM-EELS] Electron Energy Loss Spectroscopy *For more details, please download the PDF or feel free to contact us.

Related Link - https://www.mst.or.jp/casestudy/tabid/1318/pdid/55…

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【Product Field】 ■Secondary Batteries *For more details, please download the PDF or feel free to contact us.

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【Analysis Objectives】 ■ Evaluation of chemical bonding states ■ Evaluation of composition distribution ■ Structural evaluation ■ Product investigation *For more details, please download the PDF or feel free to contact us.

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[Analysis Case] Local Area Evaluation of Positive Electrode Active Material in Secondary Batteries_C0614

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MST is a foundation that provides contract analysis services. We possess various analytical instruments such as TEM, SIMS, and XRD to meet your analysis needs. Our knowledgeable sales representatives will propose appropriate analysis plans. We are also available for consultations at your company, of course. We have obtained ISO 9001 and ISO 27001 certifications. Please feel free to consult us for product development, identifying causes of defects, and patent investigations! MST will guide you to solutions for your "troubles"!

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