Abstract
We demonstrate the fabrication of flexible electrospun carbon nanofibers (CNFs) containing uniformly distributed carbon nanotubes (CNTs) and iron oxide (FeOx) nanoparticles (NPs) as a composite material for lithium-ion battery (LIB) anodes. The uniform incorporation of CNTs and FeOx NPs within the CNFs was confirmed by transmission electron microscopy. Embedding even a small amount of CNTs (0.1 wt%) in the CNFs increased the LIB performance by a factor of two compared with pure CNFs. The specific capacity was also increased, by 25%, when an iron source (iron (III) acetylacetonate) was added at a concentration of 2 wt%. The FeOx-CNT/CNF electrode maintained a capacity of 1008 mAh∙g−1 at a current density of 100 mA∙g−1 after 100 cycles. Further, the high-performance anode material was freestanding, flexible, and lightweight. This makes it suitable for next-generation LIBs, which must deliver high power over long periods while also being light and flexible.
| Original language | English |
|---|---|
| Pages (from-to) | 479-488 |
| Number of pages | 10 |
| Journal | Electrochimica Acta |
| Volume | 253 |
| DOIs | |
| Publication status | Published - 2017 Nov 1 |
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Keywords
- Anode
- Carbon nanotube
- Electrospinning
- Iron oxide
- Lithim ion battery
ASJC Scopus subject areas
- Chemical Engineering(all)
- Electrochemistry
Cite this
Carbon Nanofibers Loaded with Carbon Nanotubes and Iron Oxide as Flexible Freestanding Lithium-Ion Battery Anodes. / Joshi, Bhavana; Samuel, Edmund; Jo, Hong Seok; Kim, Yong Il; Park, Sera; Swihart, Mark T.; Yoon, Wooyoung; Yoon, Suk Goo.
In: Electrochimica Acta, Vol. 253, 01.11.2017, p. 479-488.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Carbon Nanofibers Loaded with Carbon Nanotubes and Iron Oxide as Flexible Freestanding Lithium-Ion Battery Anodes
AU - Joshi, Bhavana
AU - Samuel, Edmund
AU - Jo, Hong Seok
AU - Kim, Yong Il
AU - Park, Sera
AU - Swihart, Mark T.
AU - Yoon, Wooyoung
AU - Yoon, Suk Goo
PY - 2017/11/1
Y1 - 2017/11/1
N2 - We demonstrate the fabrication of flexible electrospun carbon nanofibers (CNFs) containing uniformly distributed carbon nanotubes (CNTs) and iron oxide (FeOx) nanoparticles (NPs) as a composite material for lithium-ion battery (LIB) anodes. The uniform incorporation of CNTs and FeOx NPs within the CNFs was confirmed by transmission electron microscopy. Embedding even a small amount of CNTs (0.1 wt%) in the CNFs increased the LIB performance by a factor of two compared with pure CNFs. The specific capacity was also increased, by 25%, when an iron source (iron (III) acetylacetonate) was added at a concentration of 2 wt%. The FeOx-CNT/CNF electrode maintained a capacity of 1008 mAh∙g−1 at a current density of 100 mA∙g−1 after 100 cycles. Further, the high-performance anode material was freestanding, flexible, and lightweight. This makes it suitable for next-generation LIBs, which must deliver high power over long periods while also being light and flexible.
AB - We demonstrate the fabrication of flexible electrospun carbon nanofibers (CNFs) containing uniformly distributed carbon nanotubes (CNTs) and iron oxide (FeOx) nanoparticles (NPs) as a composite material for lithium-ion battery (LIB) anodes. The uniform incorporation of CNTs and FeOx NPs within the CNFs was confirmed by transmission electron microscopy. Embedding even a small amount of CNTs (0.1 wt%) in the CNFs increased the LIB performance by a factor of two compared with pure CNFs. The specific capacity was also increased, by 25%, when an iron source (iron (III) acetylacetonate) was added at a concentration of 2 wt%. The FeOx-CNT/CNF electrode maintained a capacity of 1008 mAh∙g−1 at a current density of 100 mA∙g−1 after 100 cycles. Further, the high-performance anode material was freestanding, flexible, and lightweight. This makes it suitable for next-generation LIBs, which must deliver high power over long periods while also being light and flexible.
KW - Anode
KW - Carbon nanotube
KW - Electrospinning
KW - Iron oxide
KW - Lithim ion battery
UR - http://www.scopus.com/inward/record.url?scp=85029717125&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85029717125&partnerID=8YFLogxK
U2 - 10.1016/j.electacta.2017.09.086
DO - 10.1016/j.electacta.2017.09.086
M3 - Article
AN - SCOPUS:85029717125
VL - 253
SP - 479
EP - 488
JO - Electrochimica Acta
JF - Electrochimica Acta
SN - 0013-4686
ER -