The electrochemical characteristics of Ag2S and its nanocomposite anodes for Li-ion batteries

Yoon Hwa; Cheol Min Park; Hun Joon Sohn

doi:10.1016/j.jelechem.2011.12.017

The electrochemical characteristics of Ag₂S and its nanocomposite anodes for Li-ion batteries

Yoon Hwa, Cheol Min Park, Hun Joon Sohn

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

15 Scopus citations

Abstract

The suitability of silver sulfide (Ag₂S) and its nanocomposite Ag₂S/C, prepared by simple solid-state synthetic routes such as high-energy mechanical milling and heat treatment, for use as anode materials in rechargeable Li-ion batteries has been investigated. A well-developed Ag ₂S phase is identified from X-ray diffraction (XRD) patterns, and XRD and high-resolution transmission electron microscopy observations confirm that Ag₂S nanocrystallites in Ag₂S/C are uniformly distributed within an amorphous carbon matrix. The electrochemical reaction mechanism of Ag₂S with Li is identified by ex situ XRD analyses of an Ag ₂S/C nanocomposite electrode. The Ag₂S/C nanocomposite anode shows good cycling behavior and a high capacity of about 430 mA h g ^-1 after 100 cycles.

Original language	English (US)
Pages (from-to)	24-29
Number of pages	6
Journal	Journal of Electroanalytical Chemistry
Volume	667
DOIs	https://doi.org/10.1016/j.jelechem.2011.12.017
State	Published - Feb 15 2012
Externally published	Yes

Keywords

Anode materials
Lithium batteries
Nanocomposite

ASJC Scopus subject areas

Analytical Chemistry
General Chemical Engineering
Electrochemistry

Access to Document

10.1016/j.jelechem.2011.12.017

Cite this

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title = "The electrochemical characteristics of Ag2S and its nanocomposite anodes for Li-ion batteries",

abstract = "The suitability of silver sulfide (Ag2S) and its nanocomposite Ag2S/C, prepared by simple solid-state synthetic routes such as high-energy mechanical milling and heat treatment, for use as anode materials in rechargeable Li-ion batteries has been investigated. A well-developed Ag 2S phase is identified from X-ray diffraction (XRD) patterns, and XRD and high-resolution transmission electron microscopy observations confirm that Ag2S nanocrystallites in Ag2S/C are uniformly distributed within an amorphous carbon matrix. The electrochemical reaction mechanism of Ag2S with Li is identified by ex situ XRD analyses of an Ag 2S/C nanocomposite electrode. The Ag2S/C nanocomposite anode shows good cycling behavior and a high capacity of about 430 mA h g -1 after 100 cycles.",

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AU - Hwa, Yoon

AU - Park, Cheol Min

AU - Sohn, Hun Joon

PY - 2012/2/15

Y1 - 2012/2/15

N2 - The suitability of silver sulfide (Ag2S) and its nanocomposite Ag2S/C, prepared by simple solid-state synthetic routes such as high-energy mechanical milling and heat treatment, for use as anode materials in rechargeable Li-ion batteries has been investigated. A well-developed Ag 2S phase is identified from X-ray diffraction (XRD) patterns, and XRD and high-resolution transmission electron microscopy observations confirm that Ag2S nanocrystallites in Ag2S/C are uniformly distributed within an amorphous carbon matrix. The electrochemical reaction mechanism of Ag2S with Li is identified by ex situ XRD analyses of an Ag 2S/C nanocomposite electrode. The Ag2S/C nanocomposite anode shows good cycling behavior and a high capacity of about 430 mA h g -1 after 100 cycles.

AB - The suitability of silver sulfide (Ag2S) and its nanocomposite Ag2S/C, prepared by simple solid-state synthetic routes such as high-energy mechanical milling and heat treatment, for use as anode materials in rechargeable Li-ion batteries has been investigated. A well-developed Ag 2S phase is identified from X-ray diffraction (XRD) patterns, and XRD and high-resolution transmission electron microscopy observations confirm that Ag2S nanocrystallites in Ag2S/C are uniformly distributed within an amorphous carbon matrix. The electrochemical reaction mechanism of Ag2S with Li is identified by ex situ XRD analyses of an Ag 2S/C nanocomposite electrode. The Ag2S/C nanocomposite anode shows good cycling behavior and a high capacity of about 430 mA h g -1 after 100 cycles.

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KW - Lithium batteries

KW - Nanocomposite

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