Surface changes on LiNi{sub 0.8}Co{sub 0.2}O{sub 2} particles during testing of high-power lithium-ion cells.
Journal Article
·
· Electrochem. Commun.
LiNi{sub 0.8}Co{sub 0.2}O{sub 2} particles from high-power lithium-ion cells were examined to determine material changes that result from accelerated aging tests. X-ray absorption spectroscopy (XAS) and transmission electron microscope (TEM) data indicated a Li{sub x}Ni{sub 1-x}O-type layer on the particle surfaces. The greater thickness on particles from high-power fade cells indicate that these surface layers are a significant contributor to cathode impedance rise observed during cell tests.
- Research Organization:
- Argonne National Laboratory (ANL)
- Sponsoring Organization:
- EE; USDOE
- DOE Contract Number:
- AC02-06CH11357
- OSTI ID:
- 949700
- Report Number(s):
- ANL/CMT/JA-43469
- Journal Information:
- Electrochem. Commun., Journal Name: Electrochem. Commun. Journal Issue: 8 ; Aug. 2002 Vol. 4; ISSN 1388-2481
- Country of Publication:
- United States
- Language:
- ENGLISH
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