skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Correlated X-Ray 3D Ptychography and Diffraction Microscopy Visualize Links between Morphology and Crystal Structure of Lithium-Rich Cathode Materials

Journal Article · · iScience
ORCiD logo; ; ; ; ; ; ; ;

The search for higher performance, improved safety, and lifetime of lithium-ion batteries relies on the understanding of degradation mechanisms. Complementary to methods and studies on primary particles or crystalline structure on bulk materials, here we use spatially correlated ptychographic X-ray computed nanotomography with a 35 nm resolution and scanning X-ray diffraction microscopy with 1 μm resolution to visualize in 3D the hidden morphological and structural degradation processes in individual secondary particles of lithium-rich nickel, cobalt, and manganese oxides. From comparative examination of pristine and cycled particles, we suggest that morphological degradation could have radial dependency and secondary particle size dependency. The same particles were examined to correlate the degradation to crystallinity, which shows surprising core-shell structures. As a result, this study reveals the inner 3D structure of the secondary particles while opening up questions on the unexpected crystalline structural distributions, which could offer clues for future studies on this promising cathode material for lithium-ion batteries.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0012704
OSTI ID:
1547905
Alternate ID(s):
OSTI ID: 1495004
Report Number(s):
BNL-211267-2019-JAAM; S258900421830258X; PII: S258900421830258X
Journal Information:
iScience, Journal Name: iScience Vol. 11 Journal Issue: C; ISSN 2589-0042
Publisher:
ElsevierCopyright Statement
Country of Publication:
Netherlands
Language:
English
Citation Metrics:
Cited by: 21 works
Citation information provided by
Web of Science

Figures / Tables (10)

Figure 1(p. 20)figure Figure 1
Figure 2(p. 21)figure Figure 2
Figure 3(p. 22)figure Figure 3
Figure 4(p. 23)figure Figure 4
Figure 5(p. 24)figure Figure 5
Figure S1(p. 26)figure Figure S1
Figure S2(p. 27)figure Figure S2
Figure S3(p. 28)figure Figure S3
Figure S4(p. 28)figure Figure S4
Figure S5(p. 29)figure Figure S5

Similar Records

Revealing Anisotropic Spinel Formation on Pristine Li- and Mn-Rich Layered Oxide Surface and Its Impact on Cathode Performance
Journal Article · Fri Jan 06 00:00:00 EST 2017 · Advanced Energy Materials · OSTI ID:1547905
+2 more
Modifying High-Voltage Olivine-Type LiMnPO 4 Cathode via Mg Substitution in High-Orientation Crystal
Journal Article · Mon Oct 01 00:00:00 EDT 2018 · ACS Applied Energy Materials · OSTI ID:1547905
+6 more
Multimodal Nanoscale Tomographic Imaging for Battery Electrodes
Journal Article · Tue May 12 00:00:00 EDT 2020 · Advanced Energy Materials · OSTI ID:1547905
+3 more

Related Subjects

25 ENERGY STORAGE
lithium-ion battery
X-ray microscopy
tomography