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The effect of Sn substitution on the structure and oxygen activity of Na0.67Ni0.33Mn0.67O2 cathode materials for sodium ion batteries

Li, Jinke ; Risthaus, Tim ; Wang, Jun ; Zhou, Dong ; He, Xin ; Ehteshami, Niloofar ; Murzin, Vadim ; Friesen, Alex ; Liu, Haidong and Hou, Xu LU orcid , et al. (2020) In Journal of Power Sources 449.
Abstract

A series of Na0.67Ni0.33Mn0.67-xSnxO2 (x = 0, 0.01, 0.03, 0.05) materials with mixed P2/P3 phases are synthesized with a conventional solid-state reaction method and investigated as cathode materials for sodium ion batteries. The effects of Sn substitution on the structure and electrochemical performance of the Na0.67Ni0.33Mn0.67O2 are systematically investigated. The substituted samples show smaller particle sizes compared to the pristine one and the P2:P3 phase ratio highly depends on the substitution amount. The best electrochemical performance is obtained by... (More)

A series of Na0.67Ni0.33Mn0.67-xSnxO2 (x = 0, 0.01, 0.03, 0.05) materials with mixed P2/P3 phases are synthesized with a conventional solid-state reaction method and investigated as cathode materials for sodium ion batteries. The effects of Sn substitution on the structure and electrochemical performance of the Na0.67Ni0.33Mn0.67O2 are systematically investigated. The substituted samples show smaller particle sizes compared to the pristine one and the P2:P3 phase ratio highly depends on the substitution amount. The best electrochemical performance is obtained by Na0.67Ni0.33Mn0.66Sn0.01O2, and it delivers a discharge capacity of 245 mA h g−1 in 1.5–4.5 V (vs. Na|Na+), which is the highest result for Na0.67Ni0.33Mn0.67O2 materials reported so far. The ex situ X-ray absorption spectroscopy and X-ray photoelectron spectroscopy measurements reveal that the oxygen ions participate in the redox reactions within the wide voltage range of 1.5–4.5 V. The increased capacity can be attributed to the smaller particle size, which results in more oxygen activity and then higher capacity.

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publishing date
type
Contribution to journal
publication status
published
keywords
Cathode, Oxygen activity, Sn substitution, Sodium ion batteries, Sodium nickel manganese oxides
in
Journal of Power Sources
volume
449
article number
227554
publisher
Elsevier
external identifiers
  • scopus:85076240508
ISSN
0378-7753
DOI
10.1016/j.jpowsour.2019.227554
language
English
LU publication?
no
additional info
Publisher Copyright: © 2019
id
8816baaf-36c0-43ca-a1b4-5418d7cf9b72
date added to LUP
2025-12-05 22:40:11
date last changed
2025-12-11 15:03:37
@article{8816baaf-36c0-43ca-a1b4-5418d7cf9b72,
  abstract     = {{<p>A series of Na<sub>0.67</sub>Ni<sub>0.33</sub>Mn<sub>0.67-x</sub>Sn<sub>x</sub>O<sub>2</sub> (x = 0, 0.01, 0.03, 0.05) materials with mixed P2/P3 phases are synthesized with a conventional solid-state reaction method and investigated as cathode materials for sodium ion batteries. The effects of Sn substitution on the structure and electrochemical performance of the Na<sub>0.67</sub>Ni<sub>0.33</sub>Mn<sub>0.67</sub>O<sub>2</sub> are systematically investigated. The substituted samples show smaller particle sizes compared to the pristine one and the P2:P3 phase ratio highly depends on the substitution amount. The best electrochemical performance is obtained by Na<sub>0.67</sub>Ni<sub>0.33</sub>Mn<sub>0.66</sub>Sn<sub>0.01</sub>O<sub>2</sub>, and it delivers a discharge capacity of 245 mA h g<sup>−1</sup> in 1.5–4.5 V (vs. Na|Na<sup>+</sup>), which is the highest result for Na<sub>0.67</sub>Ni<sub>0.33</sub>Mn<sub>0.67</sub>O<sub>2</sub> materials reported so far. The ex situ X-ray absorption spectroscopy and X-ray photoelectron spectroscopy measurements reveal that the oxygen ions participate in the redox reactions within the wide voltage range of 1.5–4.5 V. The increased capacity can be attributed to the smaller particle size, which results in more oxygen activity and then higher capacity.</p>}},
  author       = {{Li, Jinke and Risthaus, Tim and Wang, Jun and Zhou, Dong and He, Xin and Ehteshami, Niloofar and Murzin, Vadim and Friesen, Alex and Liu, Haidong and Hou, Xu and Diehl, Marcel and Paillard, Elie and Winter, Martin and Li, Jie}},
  issn         = {{0378-7753}},
  keywords     = {{Cathode; Oxygen activity; Sn substitution; Sodium ion batteries; Sodium nickel manganese oxides}},
  language     = {{eng}},
  month        = {{02}},
  publisher    = {{Elsevier}},
  series       = {{Journal of Power Sources}},
  title        = {{The effect of Sn substitution on the structure and oxygen activity of Na<sub>0.67</sub>Ni<sub>0.33</sub>Mn<sub>0.67</sub>O<sub>2</sub> cathode materials for sodium ion batteries}},
  url          = {{http://dx.doi.org/10.1016/j.jpowsour.2019.227554}},
  doi          = {{10.1016/j.jpowsour.2019.227554}},
  volume       = {{449}},
  year         = {{2020}},
}