Abstract
Here, we report on nanocrystalline Si-Al-M (M = Fe, Cu, Ni, Zr) alloys for use as an anode for lithium-ion batteries, which were fabricated via a melt-spinning method. Based on the XRD and TEM analyses, it was found that the Si-Al-M alloys consist of nanocrystalline Si grains surrounded by an amorphous matrix phase. Among the Si-Al-M alloys with different metal composition, Ni-incorporated Si-Al-M alloy electrode retained the high discharge capacity of 2492 mAh/g and exhibited improved cyclability. The superior Li + storage performance of Si-Al-M alloy with Ni component is mainly responsible for the incorporated Ni, which induces the formation of ductile and conductive inactive matrix with crystalline Al phase, in addition to the grain size reduction of active Si phase.
| Original language | English |
|---|---|
| Pages (from-to) | 82-88 |
| Number of pages | 7 |
| Journal | Journal of Electrochemical Science and Technology |
| Volume | 10 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Mar 1 2019 |
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Keywords
- Amorphous matrix
- Li-ion battery
- Melt spinning
- Microstructure
- Si-Al alloy anode
ASJC Scopus subject areas
- Electrochemistry
Cite this
Ni added si-al alloys with enhanced Li + storage performance for lithium-ion batteries . / Umirov, Nurzhan; Seo, Deok Ho; Jung, Kyu Nam; Kim, Hyang Yeon; Kim, Sung Soo.
In: Journal of Electrochemical Science and Technology, Vol. 10, No. 1, 01.03.2019, p. 82-88.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Ni added si-al alloys with enhanced Li + storage performance for lithium-ion batteries
AU - Umirov, Nurzhan
AU - Seo, Deok Ho
AU - Jung, Kyu Nam
AU - Kim, Hyang Yeon
AU - Kim, Sung Soo
PY - 2019/3/1
Y1 - 2019/3/1
N2 - Here, we report on nanocrystalline Si-Al-M (M = Fe, Cu, Ni, Zr) alloys for use as an anode for lithium-ion batteries, which were fabricated via a melt-spinning method. Based on the XRD and TEM analyses, it was found that the Si-Al-M alloys consist of nanocrystalline Si grains surrounded by an amorphous matrix phase. Among the Si-Al-M alloys with different metal composition, Ni-incorporated Si-Al-M alloy electrode retained the high discharge capacity of 2492 mAh/g and exhibited improved cyclability. The superior Li + storage performance of Si-Al-M alloy with Ni component is mainly responsible for the incorporated Ni, which induces the formation of ductile and conductive inactive matrix with crystalline Al phase, in addition to the grain size reduction of active Si phase.
AB - Here, we report on nanocrystalline Si-Al-M (M = Fe, Cu, Ni, Zr) alloys for use as an anode for lithium-ion batteries, which were fabricated via a melt-spinning method. Based on the XRD and TEM analyses, it was found that the Si-Al-M alloys consist of nanocrystalline Si grains surrounded by an amorphous matrix phase. Among the Si-Al-M alloys with different metal composition, Ni-incorporated Si-Al-M alloy electrode retained the high discharge capacity of 2492 mAh/g and exhibited improved cyclability. The superior Li + storage performance of Si-Al-M alloy with Ni component is mainly responsible for the incorporated Ni, which induces the formation of ductile and conductive inactive matrix with crystalline Al phase, in addition to the grain size reduction of active Si phase.
KW - Amorphous matrix
KW - Li-ion battery
KW - Melt spinning
KW - Microstructure
KW - Si-Al alloy anode
UR - http://www.scopus.com/inward/record.url?scp=85066041554&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85066041554&partnerID=8YFLogxK
U2 - 10.5229/JECST.2019.10.1.82
DO - 10.5229/JECST.2019.10.1.82
M3 - Article
AN - SCOPUS:85066041554
VL - 10
SP - 82
EP - 88
JO - Journal of Electrochemical Science and Technology
JF - Journal of Electrochemical Science and Technology
SN - 2093-8551
IS - 1
ER -