Liquid System Cross-Correlative Imaging

Our liquid system’s unique removable holder tip allows for correlative imaging of transmission electron, scanning electron, X-ray, and optical microscopy of samples in liquid environments.  Dedicated holders are available for each technique.  All holders can interface with the same liquid-cell tip for site-specific imaging.

Correlative imaging allows researchers to acquire data across different length scales.  It also allows for the acquisition of complementary data:  high-resolution internal microstructure with TEM and X-ray, surface topography with high magnification and high depth of field in SEM, and lower magnification screening with optical microscopy.  And it supports the use of different spectroscopy techniques, including fluorescence, X-ray absorption spectroscopy, energy-dispersive X-ray spectroscopy (EDS), and electron energy loss spectroscopy (EELS).

 

Featured Research

 

Operando x-ray liquid-electrochemical microscopy reveals origin of Li charging and discharging of battery primary particles

Lithium iron phosphate (LiFePO4) battery material particles were charged and discharged in-situ while recording the special charge state using STXM (Scanning Transmission X-ray Microscopy) at LBL’s ALS. This data showed that spatial heterogeneities in reaction rates account for domains with the charging process significantly less uniform than the discharging process. These results highlight the crucial role of surface reaction rate for lithiation, observing these inconsistencies of ion insertion have implications for electrode engineering and battery management for future generation battery technology.

Lithium iron phosphate battery material particles are shown here charging (red to green) and discharging (green to red) in-situ in the X-ray liquid-electrochemical cell. The animation shows regions of faster and slower charge
Lithium iron phosphate battery material particles are shown here charging (red to green) and discharging (green to red) in-situ in the X-ray liquid-electrochemical cell. The animation shows regions of faster and slower charge

 

Reference: William C. Chueh et al. Origin and hysteresis of lithium compositional spatiodynamics within battery primary particle. Science (2016). Abstract

Cross Correlative Imaging Selected Publications

T.J. Woehl, S. Kashyap, E. Firlar, T. Perez-Gonzalez, D. Faivre, D. Trubitsyn, D.A. Bazylinski and T. Prozorov. “Correlative Electron and Fluorescence Microscopy of Magnetotactic Bacteria in Liquid: Toward In Vivo Imaging” Scientific Reports 4, 6854 (2014) Abstract
D.A. Fischer, D.H. Alsem, B. Simon, T. Prozorov and N. Salmon. “Development of an Integrated Platform for Cross-Correlative Imaging of Biological Specimens in Liquid using Light and Electron Microscopies.” Microscopy and Microanalysis, 19 (Suppl. 2) , pp 476-477. (2013) Abstract

 

Read More