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Direct monitoring of lithium decrease in the Li-ion battery electrode

  • Application description
  • neaSCOPE product line

Nano-FTIR spectroscopy and nano-imaging enable monitoring of chemical processes with 10nm spatial resolution and bring a unique possibility of subsurface tomography of samples, and thus, among other things, information about the orientation of crystals in 3D.

Lithium concentration maps in LixFePO4 microcrystals

Monitoring of lithium decrease in LiFePO4

Nano-FTIR spectroscopy and infrared nanoscopy of the Li-ion battery electrode provide direct evidence of the coexistence of LiFePO4 and FePO4 phases in partially delithium microcrystals. We can observe how the inner core of diamond-shaped LiFePO4 surrounded by an FePO4 envelope gradually shrinks. In addition, the measured data also reveal the charging and discharging mechanics of a conventional Li-ion battery and reveal the relations between electrochemical efficiency and material design.

IR-neaSCOPE+fs is designed for pump-probe spectroscopy with 10fs temporal and 10nm spatial resolution: it enables ultra-fast nanoscale science.
IR-neaSCOPE+s enables IR imaging and nano-FTIR spectroscopy by detecting radiation reflected from a standard AFM tip. It is a universal solution for all types of materials. It measures both absorbed and reflected radiation simultaneously and uses the fastest and most reliable modules for nano-imaging and nano-spectroscopy.
IR-neaSCOPE+TERs is a revolution in nano-spectroscopy thanks to a combination of nano-FTIR and Raman spectroscopy techniques, providing complete spectral analysis.
cryo-neaSCOPE+xs is a pioneering instrument for nanoscale optical imaging and spectroscopy in an extreme cryogenic environment.

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