Identification and Distribution Evaluation of Active Substance, Degraded Component and Conductive Auxiliary agent for Lithium Ion Secondary Battery

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Microscopic Raman Spectroscopy

Microscopic Raman spectroscopy provides spectra derived from molecular vibration and lattice vibration. It makes it possible to obtain information on a spatial distribution of each component of the electrodes of the lithium ion battery by forming an image of a particular peak. This technology has successfully made the visualization of any degraded content of the positive electrode components and the active substance.

Characteristics of microscopic Raman spectroscopy

  • Determining Raman spectra one by one in a specified range at a spatial resolution of 1μm or lower
  • It is possible to visualize the distribution of the active substance, conductive assistant, graphite and other electrode components and evaluate the charged/discharged state and degraded conditions of the active substance.
  • Measurement in a state being exposed to the atmosphere is possible.

Example of analysis: Analysis and visualization of the positive electrode by Raman spectroscopy

Search Number 9035

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