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Title: Lithium-manganese-nickel-oxide electrodes with integrated layered-spinel structures for lithium batteries.

Abstract

A series of lithium-manganese-nickel-oxide compositions that can be represented in three-component notation, xLi[Mn{sub 1.5}Ni{sub 0.5}]O{sub 4} {center_dot} (1-x)(Li{sub 2}MnO{sub 3} {center_dot} Li(Mn{sub 0.5}Ni{sub 0.5})O{sub 2}), in which a spinel component, Li[Mn{sub 1.5}Ni{sub 0.5}]O{sub 4}, and two layered components, Li{sub 2}MnO{sub 3} and Li(Mn{sub 0.5}Ni{sub 0.5})O{sub 2}, are structurally integrated in a highly complex manner, have been evaluated as electrodes in lithium cells for x = 1, 0.75, 0.50, 0.25 and 0. In this series of compounds, which is defined by the Li[Mn{sub 1.5}Ni{sub 0.5}]O{sub 4}{sup -} (Li{sub 2}MnO{sub 3} {center_dot} Li(Mn{sub 0.5}Ni{sub 0.5})O{sub 2}) tie-line in the Li[Mn{sub 1.5}Ni{sub 0.5}]O{sub 4}-Li{sub 2}MnO{sub 3}-Li(Mn{sub 0.5}Ni{sub 0.5})O{sub 2} phase diagram, the Mn:Ni ratio in the spinel and the combined layered Li{sub 2}MnO{sub 3} {center_dot} Li(Mn{sub 0.5}Ni{sub 0.5})O{sub 2} components is always 3:1. Powder X-ray diffraction patterns of the end members and the electrochemical profiles of cells with these electrodes are consistent with those expected for the spinel Li[Mn{sub 1.5}Ni{sub 0.5}]O{sub 4} (x = 1) and for 'composite' Li{sub 2}MnO{sub 3} {center_dot} Li(Mn{sub 0.5}Ni{sub 0.5})O{sub 2} layered electrode structures (x = 0). Electrodes with intermediate values of x exhibit both spinel and layered character and yield extremely high capacities, reaching more than 250more » mA h/g with good cycling stability between 2.0 V and 4.95 V vs. Li{sup o} at a current rate of 0.1 mA/cm{sup 2}.« less

Authors:
; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
EE
OSTI Identifier:
939310
Report Number(s):
ANL/CMT/JA-57404
Journal ID: ISSN 1388-2481; TRN: US200823%%7
DOE Contract Number:  
DE-AC02-06CH11357
Resource Type:
Journal Article
Journal Name:
Electrochem. Commun.
Additional Journal Information:
Journal Volume: 9; Journal Issue: 2 ; Feb. 2007; Journal ID: ISSN 1388-2481
Country of Publication:
United States
Language:
ENGLISH
Subject:
25 ENERGY STORAGE; 36 MATERIALS SCIENCE; ELECTRODES; METAL-NONMETAL BATTERIES; LITHIUM OXIDES; NICKEL OXIDES; MANGANESE OXIDES; MATERIALS TESTING; PHASE DIAGRAMS; SPINELS; STABILITY

Citation Formats

Park, S H, Kang, S H, Johnson, C S, Amine, K, Thackeray, M M, and Chemical Engineering. Lithium-manganese-nickel-oxide electrodes with integrated layered-spinel structures for lithium batteries.. United States: N. p., 2007. Web. doi:10.1016/j.elecom.2006.09.014.
Park, S H, Kang, S H, Johnson, C S, Amine, K, Thackeray, M M, & Chemical Engineering. Lithium-manganese-nickel-oxide electrodes with integrated layered-spinel structures for lithium batteries.. United States. doi:10.1016/j.elecom.2006.09.014.
Park, S H, Kang, S H, Johnson, C S, Amine, K, Thackeray, M M, and Chemical Engineering. Thu . "Lithium-manganese-nickel-oxide electrodes with integrated layered-spinel structures for lithium batteries.". United States. doi:10.1016/j.elecom.2006.09.014.
@article{osti_939310,
title = {Lithium-manganese-nickel-oxide electrodes with integrated layered-spinel structures for lithium batteries.},
author = {Park, S H and Kang, S H and Johnson, C S and Amine, K and Thackeray, M M and Chemical Engineering},
abstractNote = {A series of lithium-manganese-nickel-oxide compositions that can be represented in three-component notation, xLi[Mn{sub 1.5}Ni{sub 0.5}]O{sub 4} {center_dot} (1-x)(Li{sub 2}MnO{sub 3} {center_dot} Li(Mn{sub 0.5}Ni{sub 0.5})O{sub 2}), in which a spinel component, Li[Mn{sub 1.5}Ni{sub 0.5}]O{sub 4}, and two layered components, Li{sub 2}MnO{sub 3} and Li(Mn{sub 0.5}Ni{sub 0.5})O{sub 2}, are structurally integrated in a highly complex manner, have been evaluated as electrodes in lithium cells for x = 1, 0.75, 0.50, 0.25 and 0. In this series of compounds, which is defined by the Li[Mn{sub 1.5}Ni{sub 0.5}]O{sub 4}{sup -} (Li{sub 2}MnO{sub 3} {center_dot} Li(Mn{sub 0.5}Ni{sub 0.5})O{sub 2}) tie-line in the Li[Mn{sub 1.5}Ni{sub 0.5}]O{sub 4}-Li{sub 2}MnO{sub 3}-Li(Mn{sub 0.5}Ni{sub 0.5})O{sub 2} phase diagram, the Mn:Ni ratio in the spinel and the combined layered Li{sub 2}MnO{sub 3} {center_dot} Li(Mn{sub 0.5}Ni{sub 0.5})O{sub 2} components is always 3:1. Powder X-ray diffraction patterns of the end members and the electrochemical profiles of cells with these electrodes are consistent with those expected for the spinel Li[Mn{sub 1.5}Ni{sub 0.5}]O{sub 4} (x = 1) and for 'composite' Li{sub 2}MnO{sub 3} {center_dot} Li(Mn{sub 0.5}Ni{sub 0.5})O{sub 2} layered electrode structures (x = 0). Electrodes with intermediate values of x exhibit both spinel and layered character and yield extremely high capacities, reaching more than 250 mA h/g with good cycling stability between 2.0 V and 4.95 V vs. Li{sup o} at a current rate of 0.1 mA/cm{sup 2}.},
doi = {10.1016/j.elecom.2006.09.014},
journal = {Electrochem. Commun.},
issn = {1388-2481},
number = 2 ; Feb. 2007,
volume = 9,
place = {United States},
year = {2007},
month = {2}
}