Electrochemically activated MnO as a cathode material for sodium-ion batteries

Leiting Zhang; Dmitry Batuk; Guohua Chen; Jean Marie Tarascon

doi:10.1016/j.elecom.2017.02.020

Electrochemically activated MnO as a cathode material for sodium-ion batteries

Leiting Zhang, Dmitry Batuk, Guohua Chen, Jean Marie Tarascon

Research output: Journal article publication › Journal article › Academic research › peer-review

13 Citations (Scopus)

Abstract

Besides classical electrode materials pertaining to Li-ion batteries, recent interest has been devoted to pairs of active redox composites having a redox center and an intercalant source. Taking advantage of the NaPF6salt decomposition above 4.2 V, we extrapolate this concept to the electrochemical in situ preparation of F-based MnO composite electrodes for Na-ion batteries. Such electrodes exhibit a reversible discharge capacity of 145 mAh g− 1at room temperature. The amorphization of pristine MnO electrode after activation is attributed to the electrochemical grinding effect caused by substantial atomic migration and lattice strain build-up upon cycling.

Original language	English
Pages (from-to)	81-84
Number of pages	4
Journal	Electrochemistry Communications
Volume	77
DOIs	https://doi.org/10.1016/j.elecom.2017.02.020
Publication status	Published - 1 Apr 2017

Keywords

Electrolyte stability
In situ synthesis
Oxyfluorides
Redox composites

ASJC Scopus subject areas

Electrochemistry

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10.1016/j.elecom.2017.02.020

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title = "Electrochemically activated MnO as a cathode material for sodium-ion batteries",

abstract = "Besides classical electrode materials pertaining to Li-ion batteries, recent interest has been devoted to pairs of active redox composites having a redox center and an intercalant source. Taking advantage of the NaPF6salt decomposition above 4.2 V, we extrapolate this concept to the electrochemical in situ preparation of F-based MnO composite electrodes for Na-ion batteries. Such electrodes exhibit a reversible discharge capacity of 145 mAh g− 1at room temperature. The amorphization of pristine MnO electrode after activation is attributed to the electrochemical grinding effect caused by substantial atomic migration and lattice strain build-up upon cycling.",

keywords = "Electrolyte stability, In situ synthesis, Oxyfluorides, Redox composites",

author = "Leiting Zhang and Dmitry Batuk and Guohua Chen and Tarascon, {Jean Marie}",

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journal = "Electrochemistry Communications",

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T1 - Electrochemically activated MnO as a cathode material for sodium-ion batteries

AU - Zhang, Leiting

AU - Batuk, Dmitry

AU - Chen, Guohua

AU - Tarascon, Jean Marie

PY - 2017/4/1

Y1 - 2017/4/1

N2 - Besides classical electrode materials pertaining to Li-ion batteries, recent interest has been devoted to pairs of active redox composites having a redox center and an intercalant source. Taking advantage of the NaPF6salt decomposition above 4.2 V, we extrapolate this concept to the electrochemical in situ preparation of F-based MnO composite electrodes for Na-ion batteries. Such electrodes exhibit a reversible discharge capacity of 145 mAh g− 1at room temperature. The amorphization of pristine MnO electrode after activation is attributed to the electrochemical grinding effect caused by substantial atomic migration and lattice strain build-up upon cycling.

AB - Besides classical electrode materials pertaining to Li-ion batteries, recent interest has been devoted to pairs of active redox composites having a redox center and an intercalant source. Taking advantage of the NaPF6salt decomposition above 4.2 V, we extrapolate this concept to the electrochemical in situ preparation of F-based MnO composite electrodes for Na-ion batteries. Such electrodes exhibit a reversible discharge capacity of 145 mAh g− 1at room temperature. The amorphization of pristine MnO electrode after activation is attributed to the electrochemical grinding effect caused by substantial atomic migration and lattice strain build-up upon cycling.

KW - Electrolyte stability

KW - In situ synthesis

KW - Oxyfluorides

KW - Redox composites

UR - http://www.scopus.com/inward/record.url?scp=85014353902&partnerID=8YFLogxK

U2 - 10.1016/j.elecom.2017.02.020

DO - 10.1016/j.elecom.2017.02.020

M3 - Journal article

SN - 1388-2481

VL - 77

SP - 81

EP - 84

JO - Electrochemistry Communications

JF - Electrochemistry Communications

ER -

Electrochemically activated MnO as a cathode material for sodium-ion batteries

Abstract

Keywords

ASJC Scopus subject areas

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