The new electrochemical reaction mechanism of Na/FeS2 cell at ambient temperature

Zulipiya Shadike; Yong Ning Zhou; Fei Ding; Lin Sang; Kyung Wan Nam; Xiao Qing Yang; Zheng Wen Fu

doi:10.1016/j.jpowsour.2014.03.011

The new electrochemical reaction mechanism of Na/FeS₂ cell at ambient temperature

Zulipiya Shadike
, Yong Ning Zhou
, Fei Ding
, Lin Sang
, Kyung Wan Nam
, Xiao Qing Yang
, Zheng Wen Fu

Department of Energy and Materials Engineering

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

81 Scopus citations

Abstract

FeS₂ synthesized by hydrothermal method was used for sodium batteries for the first time. A large initial discharge capacity of 771 mAh g^-1 and a high reversible capacity of 521 mAh g^-1 were obtained. The reaction mechanism of electrochemical de-sodiation (charge) was investigated after the initial discharge. Our results have demonstrated that the composition and structure of electrode after the charging to 3.0 V could not recover its original state of FeS₂ and a new phase of NaFeS ₂ was revealed. This should be responsible to the large irreversible capacity in the first cycle and the high discharge and charge plateaus after the initial cycle.

Original language	English
Pages (from-to)	72-76
Number of pages	5
Journal	Journal of Power Sources
Volume	260
DOIs	https://doi.org/10.1016/j.jpowsour.2014.03.011
State	Published - 15 Aug 2014

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Charge reaction mechanism
Hydrothermal synthesis
Sodium ion battery

Access to Document

10.1016/j.jpowsour.2014.03.011

Cite this

@article{324cbdc01593453e91c05a256f25ecf9,

title = "The new electrochemical reaction mechanism of Na/FeS2 cell at ambient temperature",

abstract = "FeS2 synthesized by hydrothermal method was used for sodium batteries for the first time. A large initial discharge capacity of 771 mAh g-1 and a high reversible capacity of 521 mAh g-1 were obtained. The reaction mechanism of electrochemical de-sodiation (charge) was investigated after the initial discharge. Our results have demonstrated that the composition and structure of electrode after the charging to 3.0 V could not recover its original state of FeS2 and a new phase of NaFeS 2 was revealed. This should be responsible to the large irreversible capacity in the first cycle and the high discharge and charge plateaus after the initial cycle.",

keywords = "Charge reaction mechanism, Hydrothermal synthesis, Sodium ion battery",

author = "Zulipiya Shadike and Zhou, \{Yong Ning\} and Fei Ding and Lin Sang and Nam, \{Kyung Wan\} and Yang, \{Xiao Qing\} and Fu, \{Zheng Wen\}",

year = "2014",

month = aug,

day = "15",

doi = "10.1016/j.jpowsour.2014.03.011",

language = "English",

volume = "260",

pages = "72--76",

journal = "Journal of Power Sources",

issn = "0378-7753",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - The new electrochemical reaction mechanism of Na/FeS2 cell at ambient temperature

AU - Shadike, Zulipiya

AU - Zhou, Yong Ning

AU - Ding, Fei

AU - Sang, Lin

AU - Nam, Kyung Wan

AU - Yang, Xiao Qing

AU - Fu, Zheng Wen

PY - 2014/8/15

Y1 - 2014/8/15

N2 - FeS2 synthesized by hydrothermal method was used for sodium batteries for the first time. A large initial discharge capacity of 771 mAh g-1 and a high reversible capacity of 521 mAh g-1 were obtained. The reaction mechanism of electrochemical de-sodiation (charge) was investigated after the initial discharge. Our results have demonstrated that the composition and structure of electrode after the charging to 3.0 V could not recover its original state of FeS2 and a new phase of NaFeS 2 was revealed. This should be responsible to the large irreversible capacity in the first cycle and the high discharge and charge plateaus after the initial cycle.

AB - FeS2 synthesized by hydrothermal method was used for sodium batteries for the first time. A large initial discharge capacity of 771 mAh g-1 and a high reversible capacity of 521 mAh g-1 were obtained. The reaction mechanism of electrochemical de-sodiation (charge) was investigated after the initial discharge. Our results have demonstrated that the composition and structure of electrode after the charging to 3.0 V could not recover its original state of FeS2 and a new phase of NaFeS 2 was revealed. This should be responsible to the large irreversible capacity in the first cycle and the high discharge and charge plateaus after the initial cycle.

KW - Charge reaction mechanism

KW - Hydrothermal synthesis

KW - Sodium ion battery

UR - https://www.scopus.com/pages/publications/84897053099

U2 - 10.1016/j.jpowsour.2014.03.011

DO - 10.1016/j.jpowsour.2014.03.011

M3 - Article

AN - SCOPUS:84897053099

SN - 0378-7753

VL - 260

SP - 72

EP - 76

JO - Journal of Power Sources

JF - Journal of Power Sources

ER -