dc.contributor.author |
Medina IV, PA
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|
dc.contributor.author |
Zheng, Haitao
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|
dc.contributor.author |
Fahlman, BD
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|
dc.contributor.author |
Annamalai, P
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dc.contributor.author |
Swartbooi, Ashton M
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|
dc.contributor.author |
Le Roux, Lukas J
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dc.contributor.author |
Mathe, Mahlanyane K
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dc.date.accessioned |
2016-07-20T11:02:46Z |
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dc.date.available |
2016-07-20T11:02:46Z |
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dc.date.issued |
2015-10 |
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dc.identifier.citation |
Medina IV, P.A. Zheng, H. Fahlman, B.D. Annamalai, P. Swartbooi, A. Le Roux, L.K. and Mathe, M.K. 2015. Li4Ti5O12/graphene nanoribbons composite as anodes for lithium ion batteries. Springerplus, 4, 643-649 |
en_US |
dc.identifier.issn |
2193-1801 |
|
dc.identifier.uri |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4627983/pdf/40064_2015_Article_1438.pdf
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|
dc.identifier.uri |
http://hdl.handle.net/10204/8659
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|
dc.description |
Copyright: 2016 SpringerOpen |
en_US |
dc.description.abstract |
In this paper, the authors report the synthesis of a Li4Ti5O12/Graphene Nanoribbons (LTO/GNRs) composite using a solid-coating method. Electron microscope images of the LTO/GNRs composite have shown that LTO particles were wrapped around graphene nanoribbons. The introduction of GNRs was observed to have significantly improved the rate performance of LTO/GNTs. The specific capacities determined of the obtained composite at rates of 0.2, 0.5, 1, 2, and 5 C are 206.5, 200.9, 188, 178.1 and 142.3 mAh·g-1, respectively. This is significantly higher than those of pure LTO (169.1, 160, 150, 106 and 71.1 mAh·g-1, respectively) especially at high rate (2 and 5 C). The LTO/GNRs also shows better cycling stability at high rates. Enhanced conductivity of LTO/GNRs contributed from the GNR frameworks accelerated the kinetics of lithium intercalation/deintercalation in LIBs that also leads to excellent rate capacity of LTO/GNRs. This is attributed to its lower charge-transfer resistance (Rct = 23.38 O) compared with LTO (108.05 O), and higher exchange current density (j = 1.1 × 10-3 mA cm-2)—about 20 times than those of the LTO (j = 2.38 × 10-4 mA cm-2). |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
SpringerOpen |
en_US |
dc.relation.ispartofseries |
Workflow;17084 |
|
dc.subject |
LIBs |
en_US |
dc.subject |
Li4Ti5O12 |
en_US |
dc.subject |
Graphene nanoribbons |
en_US |
dc.subject |
Anode |
en_US |
dc.title |
Li4Ti5O12/graphene nanoribbons composite as anodes for lithium ion batteries |
en_US |
dc.type |
Article |
en_US |
dc.identifier.apacitation |
Medina IV, P., Zheng, H., Fahlman, B., Annamalai, P., Swartbooi, A. M., Le Roux, L. J., & Mathe, M. K. (2015). Li4Ti5O12/graphene nanoribbons composite as anodes for lithium ion batteries. http://hdl.handle.net/10204/8659 |
en_ZA |
dc.identifier.chicagocitation |
Medina IV, PA, Haitao Zheng, BD Fahlman, P Annamalai, Ashton M Swartbooi, Lukas J Le Roux, and Mahlanyane K Mathe "Li4Ti5O12/graphene nanoribbons composite as anodes for lithium ion batteries." (2015) http://hdl.handle.net/10204/8659 |
en_ZA |
dc.identifier.vancouvercitation |
Medina IV P, Zheng H, Fahlman B, Annamalai P, Swartbooi AM, Le Roux LJ, et al. Li4Ti5O12/graphene nanoribbons composite as anodes for lithium ion batteries. 2015; http://hdl.handle.net/10204/8659. |
en_ZA |
dc.identifier.ris |
TY - Article
AU - Medina IV, PA
AU - Zheng, Haitao
AU - Fahlman, BD
AU - Annamalai, P
AU - Swartbooi, Ashton M
AU - Le Roux, Lukas J
AU - Mathe, Mahlanyane K
AB - In this paper, the authors report the synthesis of a Li4Ti5O12/Graphene Nanoribbons (LTO/GNRs) composite using a solid-coating method. Electron microscope images of the LTO/GNRs composite have shown that LTO particles were wrapped around graphene nanoribbons. The introduction of GNRs was observed to have significantly improved the rate performance of LTO/GNTs. The specific capacities determined of the obtained composite at rates of 0.2, 0.5, 1, 2, and 5 C are 206.5, 200.9, 188, 178.1 and 142.3 mAh·g-1, respectively. This is significantly higher than those of pure LTO (169.1, 160, 150, 106 and 71.1 mAh·g-1, respectively) especially at high rate (2 and 5 C). The LTO/GNRs also shows better cycling stability at high rates. Enhanced conductivity of LTO/GNRs contributed from the GNR frameworks accelerated the kinetics of lithium intercalation/deintercalation in LIBs that also leads to excellent rate capacity of LTO/GNRs. This is attributed to its lower charge-transfer resistance (Rct = 23.38 O) compared with LTO (108.05 O), and higher exchange current density (j = 1.1 × 10-3 mA cm-2)—about 20 times than those of the LTO (j = 2.38 × 10-4 mA cm-2).
DA - 2015-10
DB - ResearchSpace
DP - CSIR
KW - LIBs
KW - Li4Ti5O12
KW - Graphene nanoribbons
KW - Anode
LK - https://researchspace.csir.co.za
PY - 2015
SM - 2193-1801
T1 - Li4Ti5O12/graphene nanoribbons composite as anodes for lithium ion batteries
TI - Li4Ti5O12/graphene nanoribbons composite as anodes for lithium ion batteries
UR - http://hdl.handle.net/10204/8659
ER -
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en_ZA |