Journal
ENERGY & ENVIRONMENTAL SCIENCE
Volume 9, Issue 8, Pages 2575-2577Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ee01367h
Keywords
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Funding
- Robert A. Welch Foundation of Houston, TX [F-1066]
- Central South University Research Foundation of Teacher [2014JSJJ005]
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Nominal Na-0.6(Li0.2Mn0.8)O-2 with the layered P3 structure (s.g. R3m) showed XPS evidence of holes in the O-2p bands on removal of Na+ ions. A large voltage plateau at 4.1 V versus Na+/Na faded significantly over 50 cycles although the capacity in the range 20 <= V < 4.5 V remained unchanged. Oxidation of the O-2p bands is not reversible.
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