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Looking beyond single electron extraction in cathode materials for lithium ion batteries

DSpace at IIT Bombay

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Title Looking beyond single electron extraction in cathode materials for lithium ion batteries
 
Creator SANKHE, AS
SAXENA, S
SHRIVASTAVA, P
SHUKLA, S
 
Subject LI2MSIO4 M
ELECTROCHEMICAL PERFORMANCE
LI2FESIO4
MN
FE
CO
Lithium ion battery
Density functional theory
Electronic structure
Silicates
 
Description One of the challenges in enhancing the performance of Lithium ion batteries for stable energy storage is looking beyond extraction of single electron per formula unit of cathode material during the delithiation without phase change of the material. We have investigated lithium ferrous silicate by partial substitution of lithium by sodium atoms using density functional theory to achieve this. Our calculations have suggested that the substitution of lithium with sodium in controlled amounts is just sufficient to provide structural and phase stability during delithiation process. The larger size of sodium atom assists in easier extraction of lithium ions by providing wider pathways. These studies suggest the possibility of extracting more than one Li-ion per formula unit making this a promising cathode material for use in Li-ion battery applications. (C) 2015 Elsevier B.V. All rights reserved.
 
Publisher ELSEVIER SCIENCE BV
 
Date 2016-01-15T04:24:27Z
2016-01-15T04:24:27Z
2015
 
Type Article
 
Identifier JOURNAL OF POWER SOURCES, 279,563-566
0378-7753
1873-2755
http://dx.doi.org/10.1016/j.jpowsour.2015.01.061
http://dspace.library.iitb.ac.in/jspui/handle/100/17750
 
Language en