NDLI: New NASICON type oxyanion high capacity anode, Li2Co2(MoO4)3, for lithium-ion batteries: preliminary studies

Content Provider	Springer Nature Link
Author	Michael, M. S. Begam, K. M. Cloke, Michael Prabaharan, S. R. S.
Copyright Year	2007
Abstract	We describe in this paper the lithium insertion/extraction behavior of a new NASICON type Li2Co2(MoO4)3 at a low potential and explored the possibility of considering this new oxyanion material as anode for lithium-ion batteries for the first time. Li2Co2(MoO4)3 was synthesized by a soft-combustion glycine-nitrate low temperature protocol. Test cells were assembled using composite Li2Co2(MoO4)3 as the negative electrode material and a thin lithium foil as the positive electrode material separated by a microporous polypropylene (Celgard® membrane) soaked in aprotic organic electrolyte (1 M LiPF6 in EC/DMC). Electrochemical discharge down to 0.001 V from OCV (∼3.5 V) revealed that about 35 Li+ could possibly be inserted into Li2Co2(MoO4)3 during the first discharge (reduction) corresponding to a specific capacity amounting to 1,500 mAh g−1. This is roughly fourfold higher compared to that of frequently used graphite electrodes. However, about 24 Li+ could be extracted during the first charge. It is interesting to note that the same amount of Li+ could be inserted during the second Li+ insertion process (second cycle discharge) giving rise to a second discharge capacity of 1,070 mAh g−1. It was also observed that a major portion of lithium intake occurs below 1.0 V vs Li/Li+, which is typical of anodes being used in lithium-ion batteries.
Starting Page	1025
Ending Page	1029
Page Count	5
File Format	PDF
ISSN	14328488
Journal	Journal of Solid State Electrochemistry
Volume Number	12
Issue Number	7-8
e-ISSN	14330768
Language	English
Publisher	Springer-Verlag
Publisher Date	2007-11-21
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Anode materials Lithium cobalt molybdate Lithium-ion battery NASICON structure Electronic and Computer Engineering Condensed Matter Characterization and Evaluation of Materials Industrial Chemistry/Chemical Engineering Analytical Chemistry Physical Chemistry
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Materials Science Electrical and Electronic Engineering Electrochemistry

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New NASICON type oxyanion high capacity anode, Li2Co2(MoO4)3, for lithium-ion batteries: preliminary studies

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