TY - JOUR
T1 - Electrochemical properties of iodine-containing lithium manganese oxide spinel
AU - Han, Chi Hwan
AU - Hong, Young Sik
AU - Hong, Hyun Sil
AU - Kim, Keon
N1 - Funding Information:
We gratefully acknowledge financial support for this work by the Ministry of Education and Human Resources Development (BK-21) and the Korea Science and Engineering Foundation (KOSEF R01-2001-00045).
Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2002/9/18
Y1 - 2002/9/18
N2 - Iodine-containing, cation-deficient, lithium manganese oxides (ICCD-LMO) are prepared by reaction of MnO2 with LiI. The MnO2 is completely transformed into spinel-structured compounds with a nominal composition of Li1-δMn2-2δO4Ix. A sample prepared at 800 °C, viz. Li0.99Mn1.98O4I0.02, exhibits an initial discharge capacity of 113 mA h g-1 with good cycleability and rate capability in the 4-V region. Iodine-containing, lithium-rich lithium manganese oxides (ICLR-LMO) are also prepared by reaction of LiMn2O4 with LiI, which results in a nominal composition of Li1+xMn2-xO4Ix. Li1.01Mn1.99O4I0.02 shows a discharge capacity of 124 mA h g-1 on the first cycle and 119 mA h g-1 a on the 20th cycle. Both results indicate that a small amount of iodine species helps to maintain cycle performance.
AB - Iodine-containing, cation-deficient, lithium manganese oxides (ICCD-LMO) are prepared by reaction of MnO2 with LiI. The MnO2 is completely transformed into spinel-structured compounds with a nominal composition of Li1-δMn2-2δO4Ix. A sample prepared at 800 °C, viz. Li0.99Mn1.98O4I0.02, exhibits an initial discharge capacity of 113 mA h g-1 with good cycleability and rate capability in the 4-V region. Iodine-containing, lithium-rich lithium manganese oxides (ICLR-LMO) are also prepared by reaction of LiMn2O4 with LiI, which results in a nominal composition of Li1+xMn2-xO4Ix. Li1.01Mn1.99O4I0.02 shows a discharge capacity of 124 mA h g-1 on the first cycle and 119 mA h g-1 a on the 20th cycle. Both results indicate that a small amount of iodine species helps to maintain cycle performance.
KW - Iodine-containing
KW - Lithium manganese oxide
KW - Lithium-ion battery
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U2 - 10.1016/S0378-7753(02)00098-8
DO - 10.1016/S0378-7753(02)00098-8
M3 - Article
AN - SCOPUS:0037130603
VL - 111
SP - 176
EP - 180
JO - Journal of Power Sources
JF - Journal of Power Sources
SN - 0378-7753
IS - 1
ER -
