Journal
ISCIENCE
Volume 11, Issue -, Pages 356-+Publisher
CELL PRESS
DOI: 10.1016/j.isci.2018.12.028
Keywords
-
Categories
Funding
- Swiss National Science Foundation (SNSF) [200021_152554, 200020_169623]
- US DOE Office of Science Facility, at Brookhaven National Laboratory [DE-5C0012704]
- Swiss National Science Foundation (SNF) [200021_152554, 200020_169623] Funding Source: Swiss National Science Foundation (SNF)
Ask authors/readers for more resources
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 par tides 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 pm 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. 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.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available