Abstract
Nickelous oxide (NiO) is a promising anode for Lithium ion (Li-ion) batteries. However it suffers from rapid degradation due to large volume change upon cycling. In this work, a novel strategy to accommodate the volume change of NiO-based anodes during charge/discharge cycling through employment of the advantages of bimodal porous Nickel–Silicon (Ni–Si) network and Nickelous oxide@Nickel (NiO@Ni) shell@core structure is proposed. The designed bimodal nanoporous NiO@Ni–Si network exhibits a stable Li-ion storage property with an extremely high reversible capacity of 1656.9 mAh g−1 at 200 mA g−1 after 300 repeated cycles and 1387.1 mAh g−1 at 500 mA g−1 after 1000 cycles. It also shows a good rate performance, delivering about 400 mAh g−1 even at a current density of 2000 mA g−1. Post-cycling microscopy and impedance studies reveals the minor changes in the electrode structure that, in turn, results in an extremely low capacity degradation rate of 0.03%/cycle. The employed strategy enriches the structural design idea of dealloying products, which may further promote the development of the dealloying field and can be applied in future to prepare various types of porous shell@core anodes for Li-ion battery applications.
| Original language | English |
|---|---|
| Article number | 227550 |
| Journal | Journal of Power Sources |
| Volume | 449 |
| DOIs | |
| Publication status | Published - Feb 15 2020 |
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Keywords
- Bimodal
- Dealloying
- Li-ion battery
- Nanoporous
- NiO anode
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment
- Energy Engineering and Power Technology
- Physical and Theoretical Chemistry
- Electrical and Electronic Engineering
Cite this
Bimodal nanoporous NiO@Ni–Si network prepared by dealloying method for stable Li-ion storage. / Wang, Zhifeng; Zhang, Xiaomin; Liu, Xiaoli; Wang, Yichao; Zhang, Yongguang; Li, Yongyan; Zhao, Weimin; Qin, Chunling; Mukanova, Aliya; Bakenov, Zhumabay.
In: Journal of Power Sources, Vol. 449, 227550, 15.02.2020.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Bimodal nanoporous NiO@Ni–Si network prepared by dealloying method for stable Li-ion storage
AU - Wang, Zhifeng
AU - Zhang, Xiaomin
AU - Liu, Xiaoli
AU - Wang, Yichao
AU - Zhang, Yongguang
AU - Li, Yongyan
AU - Zhao, Weimin
AU - Qin, Chunling
AU - Mukanova, Aliya
AU - Bakenov, Zhumabay
PY - 2020/2/15
Y1 - 2020/2/15
N2 - Nickelous oxide (NiO) is a promising anode for Lithium ion (Li-ion) batteries. However it suffers from rapid degradation due to large volume change upon cycling. In this work, a novel strategy to accommodate the volume change of NiO-based anodes during charge/discharge cycling through employment of the advantages of bimodal porous Nickel–Silicon (Ni–Si) network and Nickelous oxide@Nickel (NiO@Ni) shell@core structure is proposed. The designed bimodal nanoporous NiO@Ni–Si network exhibits a stable Li-ion storage property with an extremely high reversible capacity of 1656.9 mAh g−1 at 200 mA g−1 after 300 repeated cycles and 1387.1 mAh g−1 at 500 mA g−1 after 1000 cycles. It also shows a good rate performance, delivering about 400 mAh g−1 even at a current density of 2000 mA g−1. Post-cycling microscopy and impedance studies reveals the minor changes in the electrode structure that, in turn, results in an extremely low capacity degradation rate of 0.03%/cycle. The employed strategy enriches the structural design idea of dealloying products, which may further promote the development of the dealloying field and can be applied in future to prepare various types of porous shell@core anodes for Li-ion battery applications.
AB - Nickelous oxide (NiO) is a promising anode for Lithium ion (Li-ion) batteries. However it suffers from rapid degradation due to large volume change upon cycling. In this work, a novel strategy to accommodate the volume change of NiO-based anodes during charge/discharge cycling through employment of the advantages of bimodal porous Nickel–Silicon (Ni–Si) network and Nickelous oxide@Nickel (NiO@Ni) shell@core structure is proposed. The designed bimodal nanoporous NiO@Ni–Si network exhibits a stable Li-ion storage property with an extremely high reversible capacity of 1656.9 mAh g−1 at 200 mA g−1 after 300 repeated cycles and 1387.1 mAh g−1 at 500 mA g−1 after 1000 cycles. It also shows a good rate performance, delivering about 400 mAh g−1 even at a current density of 2000 mA g−1. Post-cycling microscopy and impedance studies reveals the minor changes in the electrode structure that, in turn, results in an extremely low capacity degradation rate of 0.03%/cycle. The employed strategy enriches the structural design idea of dealloying products, which may further promote the development of the dealloying field and can be applied in future to prepare various types of porous shell@core anodes for Li-ion battery applications.
KW - Bimodal
KW - Dealloying
KW - Li-ion battery
KW - Nanoporous
KW - NiO anode
UR - http://www.scopus.com/inward/record.url?scp=85076250820&partnerID=8YFLogxK
U2 - 10.1016/j.jpowsour.2019.227550
DO - 10.1016/j.jpowsour.2019.227550
M3 - Article
AN - SCOPUS:85076250820
VL - 449
JO - Journal of Power Sources
JF - Journal of Power Sources
SN - 0378-7753
M1 - 227550
ER -