AlPO4-coated P2-type hexagonal Na0.7MnO2.05 as high stability cathode for sodium ion battery

Yue Zhang; Yi Pei; Wen Liu; Shu Zhang; Jianjun Xie; Jing Xia; Su Nie; Li Liu; Xianyou Wang

doi:10.1016/j.cej.2019.122697

AlPO₄-coated P2-type hexagonal Na_0.7MnO_2.05 as high stability cathode for sodium ion battery

Yue Zhang, Yi Pei, Wen Liu, Shu Zhang, Jianjun Xie, Jing Xia, Su Nie, Li Liu, Xianyou Wang

Research output: Contribution to journal › Article › peer-review

58 Scopus citations

Abstract

By employing P2-type hexagonal Na_0.7MnO_2.05 submicron particles synthesized by a wet chemistry method, AlPO₄-coated Na_0.7MnO_2.05 materials have been fabricated via a precipitation process. AlPO₄-coated Na_0.7MnO_2.05 materials display much better electrochemical performance than pristine Na_0.7MnO_2.05 as sodium ion battery cathode materials. The 5 wt% AlPO₄-coated Na_0.7MnO_2.05 delivers high discharge capacity of 154.3 mAh g⁻¹ at low current density of 0.02 A g⁻¹. Besides, it shows excellent rate ability and cycle performance. It delivers high discharge capacity of 103.9 mAh g⁻¹ at 1 A g⁻¹, maintaining 92.4% capacity retention after 100 cycles. However, the pristine Na_0.7MnO_2.05 only shows the capacity retention of 62.4% in the same case. The results reveal that AlPO₄ coating plays a dominant role on the improved electrochemical capability and the mechanism of significantly enhanced electrochemical capability for AlPO₄-coated Na_0.7MnO_2.05 is systematically investigated.

Original language	English
Article number	122697
Journal	Chemical Engineering Journal
Volume	382
DOIs	https://doi.org/10.1016/j.cej.2019.122697
State	Published - Feb 15 2020
Externally published	Yes

Scopus Subject Areas

General Chemistry
Environmental Chemistry
General Chemical Engineering
Industrial and Manufacturing Engineering

Keywords

High stability
P2-type hexagonal NaMnO
Sodium ion battery
Surface coating

Access to Document

10.1016/j.cej.2019.122697

Cite this

@article{d7acadc1fb914e20821ec19737cd0b3a,

title = "AlPO4-coated P2-type hexagonal Na0.7MnO2.05 as high stability cathode for sodium ion battery",

abstract = "By employing P2-type hexagonal Na0.7MnO2.05 submicron particles synthesized by a wet chemistry method, AlPO4-coated Na0.7MnO2.05 materials have been fabricated via a precipitation process. AlPO4-coated Na0.7MnO2.05 materials display much better electrochemical performance than pristine Na0.7MnO2.05 as sodium ion battery cathode materials. The 5 wt% AlPO4-coated Na0.7MnO2.05 delivers high discharge capacity of 154.3 mAh g−1 at low current density of 0.02 A g−1. Besides, it shows excellent rate ability and cycle performance. It delivers high discharge capacity of 103.9 mAh g−1 at 1 A g−1, maintaining 92.4% capacity retention after 100 cycles. However, the pristine Na0.7MnO2.05 only shows the capacity retention of 62.4% in the same case. The results reveal that AlPO4 coating plays a dominant role on the improved electrochemical capability and the mechanism of significantly enhanced electrochemical capability for AlPO4-coated Na0.7MnO2.05 is systematically investigated.",

keywords = "High stability, P2-type hexagonal NaMnO, Sodium ion battery, Surface coating",

author = "Yue Zhang and Yi Pei and Wen Liu and Shu Zhang and Jianjun Xie and Jing Xia and Su Nie and Li Liu and Xianyou Wang",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2020",

month = feb,

day = "15",

doi = "10.1016/j.cej.2019.122697",

language = "English",

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T1 - AlPO4-coated P2-type hexagonal Na0.7MnO2.05 as high stability cathode for sodium ion battery

AU - Zhang, Yue

AU - Pei, Yi

AU - Liu, Wen

AU - Zhang, Shu

AU - Xie, Jianjun

AU - Xia, Jing

AU - Nie, Su

AU - Liu, Li

AU - Wang, Xianyou

PY - 2020/2/15

Y1 - 2020/2/15

N2 - By employing P2-type hexagonal Na0.7MnO2.05 submicron particles synthesized by a wet chemistry method, AlPO4-coated Na0.7MnO2.05 materials have been fabricated via a precipitation process. AlPO4-coated Na0.7MnO2.05 materials display much better electrochemical performance than pristine Na0.7MnO2.05 as sodium ion battery cathode materials. The 5 wt% AlPO4-coated Na0.7MnO2.05 delivers high discharge capacity of 154.3 mAh g−1 at low current density of 0.02 A g−1. Besides, it shows excellent rate ability and cycle performance. It delivers high discharge capacity of 103.9 mAh g−1 at 1 A g−1, maintaining 92.4% capacity retention after 100 cycles. However, the pristine Na0.7MnO2.05 only shows the capacity retention of 62.4% in the same case. The results reveal that AlPO4 coating plays a dominant role on the improved electrochemical capability and the mechanism of significantly enhanced electrochemical capability for AlPO4-coated Na0.7MnO2.05 is systematically investigated.

AB - By employing P2-type hexagonal Na0.7MnO2.05 submicron particles synthesized by a wet chemistry method, AlPO4-coated Na0.7MnO2.05 materials have been fabricated via a precipitation process. AlPO4-coated Na0.7MnO2.05 materials display much better electrochemical performance than pristine Na0.7MnO2.05 as sodium ion battery cathode materials. The 5 wt% AlPO4-coated Na0.7MnO2.05 delivers high discharge capacity of 154.3 mAh g−1 at low current density of 0.02 A g−1. Besides, it shows excellent rate ability and cycle performance. It delivers high discharge capacity of 103.9 mAh g−1 at 1 A g−1, maintaining 92.4% capacity retention after 100 cycles. However, the pristine Na0.7MnO2.05 only shows the capacity retention of 62.4% in the same case. The results reveal that AlPO4 coating plays a dominant role on the improved electrochemical capability and the mechanism of significantly enhanced electrochemical capability for AlPO4-coated Na0.7MnO2.05 is systematically investigated.

KW - High stability

KW - P2-type hexagonal NaMnO

KW - Sodium ion battery

KW - Surface coating

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