Solid-State NMR Studies of Chemically Lithiated CF.
Three types of fluorinated carbon, all in their original form and upon sequential chemical lithiations via n-butyllithium, were investigated by (13)C and (19)F solid-state NMR methods. The three starting CF(x) materials [where x = 1 (nominally)] were fiber based, graphite based, and petroleum coke based. The aim of the current study was to identify, at the atomic/molecular structural level, factors that might account for differences in electrochemical performance among the different kinds of CF(x). Differences were noted in the covalent F character among the starting compounds and in the details of LiF production among the lithiated samples.
Leifer
N D
ND
Department of Physics, Hunter College of The City University of New York, New York, New York 10065, USA.
Johnson
V S
VS
Ben-Ari
R
R
Gan
H
H
Lehnes
J M
JM
Guo
R
R
Lu
W
W
Muffoletto
B C
BC
Reddy
T
T
Stallworth
P E
PE
Greenbaum
S G
SG