Analysis of the state of cathode active materials using XPS.

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NMC (Li(NixMnyCoz)O2) is used as a positive electrode active material in lithium-ion batteries. Regarding the NMC reagent, an evaluation of the valence of metal oxides was conducted through state analysis using XPS. As a result of the analysis, the NiMnCo ratio obtained is close to the specifications of the reagent. Additionally, F and C, which are believed to originate from the binder component, have been detected.

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State analysis of cathode active materials using XPS.
For the evaluation of lithium-ion battery materials! Analyzing chemical bonding states using X-ray photoelectron spectroscopy.

【Principle of XPS】 ■Calculate binding energy from the energy of X-rays and photoelectrons ■It is possible to identify elements from peak positions ■Peak positions shift due to differences in chemical states (valence, bonding state) (chemical shift) ■By utilizing chemical shifts, it is possible to estimate the chemical bonding states of each element *For more details, please download the PDF or feel free to contact us.