The mechanism of the sodiation and desodiation in Super P carbon electrode for sodium-ion battery

Chun Ming Wu, Ping I. Pan, Yin Wei Cheng, Chuan-Pu Liu, Chia Chin Chang, Maxim Avdeev, Shih-kang Lin

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The sodiation and desodiation of sodium (Na) into the Super-P carbon anode material were investigated using electrochemical analyses, high-resolution transmission electron microscopy (HRTEM), and neutron powder diffraction (NPD). In the sodiated Super-P carbon, sodium is stored both in the graphite interlayer space of carbon nano-particles and pores between the particles. Sodium metal clusters found in micro-pores between the carbon particles are responsible for the large irreversible capacity of the Super-P electrode. The graphite interlayer distance increases on sodiation from 3.57 Å to two distinct values of ∼3.84 and 4.41 Å. The mechanism of the process is discussed.

Original languageEnglish
Pages (from-to)14-21
Number of pages8
JournalJournal of Power Sources
Volume340
DOIs
Publication statusPublished - 2017 Feb 1

Fingerprint

electric batteries
Carbon
Sodium
sodium
Ions
Electrodes
electrodes
Graphite
carbon
interlayers
ions
graphite
porosity
Neutron powder diffraction
metal clusters
High resolution transmission electron microscopy
Anodes
anodes
Metals
neutrons

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

Cite this

Wu, Chun Ming ; Pan, Ping I. ; Cheng, Yin Wei ; Liu, Chuan-Pu ; Chang, Chia Chin ; Avdeev, Maxim ; Lin, Shih-kang. / The mechanism of the sodiation and desodiation in Super P carbon electrode for sodium-ion battery. In: Journal of Power Sources. 2017 ; Vol. 340. pp. 14-21.
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abstract = "The sodiation and desodiation of sodium (Na) into the Super-P carbon anode material were investigated using electrochemical analyses, high-resolution transmission electron microscopy (HRTEM), and neutron powder diffraction (NPD). In the sodiated Super-P carbon, sodium is stored both in the graphite interlayer space of carbon nano-particles and pores between the particles. Sodium metal clusters found in micro-pores between the carbon particles are responsible for the large irreversible capacity of the Super-P electrode. The graphite interlayer distance increases on sodiation from 3.57 {\AA} to two distinct values of ∼3.84 and 4.41 {\AA}. The mechanism of the process is discussed.",
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The mechanism of the sodiation and desodiation in Super P carbon electrode for sodium-ion battery. / Wu, Chun Ming; Pan, Ping I.; Cheng, Yin Wei; Liu, Chuan-Pu; Chang, Chia Chin; Avdeev, Maxim; Lin, Shih-kang.

In: Journal of Power Sources, Vol. 340, 01.02.2017, p. 14-21.

Research output: Contribution to journalArticle

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T1 - The mechanism of the sodiation and desodiation in Super P carbon electrode for sodium-ion battery

AU - Wu, Chun Ming

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AU - Cheng, Yin Wei

AU - Liu, Chuan-Pu

AU - Chang, Chia Chin

AU - Avdeev, Maxim

AU - Lin, Shih-kang

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AB - The sodiation and desodiation of sodium (Na) into the Super-P carbon anode material were investigated using electrochemical analyses, high-resolution transmission electron microscopy (HRTEM), and neutron powder diffraction (NPD). In the sodiated Super-P carbon, sodium is stored both in the graphite interlayer space of carbon nano-particles and pores between the particles. Sodium metal clusters found in micro-pores between the carbon particles are responsible for the large irreversible capacity of the Super-P electrode. The graphite interlayer distance increases on sodiation from 3.57 Å to two distinct values of ∼3.84 and 4.41 Å. The mechanism of the process is discussed.

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