Synthesis of graphene nanosheets by the electrolytic exfoliation of graphite and their direct assembly for lithium ion battery anodes

Seung Hun Lee; Seung Deok Seo; Kyung Soo Park; Hyun Woo Shim; Dong Wan Kim

doi:10.1016/j.matchemphys.2012.04.043

Synthesis of graphene nanosheets by the electrolytic exfoliation of graphite and their direct assembly for lithium ion battery anodes

Seung Hun Lee, Seung Deok Seo, Kyung Soo Park, Hyun Woo Shim, Dong Wan Kim

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

19 Citations (Scopus)

Abstract

Graphene nanosheets were produced through electrolytic exfoliation of graphite foils in an aqueous solution containing an electrolyte, poly(sodium-4-styrenesulfonate). We confirmed the formation of graphene nanosheets by X-ray diffraction, Raman spectroscopy, and high-resolution transmission electron microscopy. The electrochemical performance of the graphene nanosheets was evaluated using cyclic voltammetry, galvanostatic charge-discharge cycling, and electrochemical impedance spectroscopy. In order to address the feasibility of their use as lightweight anodes for a Li ion battery, we also present the direct assembly of graphene nanosheets onto metal current collectors and the fabrication of freestanding graphene nanosheets paper electrodes.

Original language	English
Pages (from-to)	309-316
Number of pages	8
Journal	Materials Chemistry and Physics
Volume	135
Issue number	2-3
DOIs	https://doi.org/10.1016/j.matchemphys.2012.04.043
Publication status	Published - 2012 Aug 15
Externally published	Yes

Keywords

Electron microscopy
Microstructure
Nanostructures

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics

UN SDGs

This output contributes to the following Sustainable Development Goal(s)

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title = "Synthesis of graphene nanosheets by the electrolytic exfoliation of graphite and their direct assembly for lithium ion battery anodes",

abstract = "Graphene nanosheets were produced through electrolytic exfoliation of graphite foils in an aqueous solution containing an electrolyte, poly(sodium-4-styrenesulfonate). We confirmed the formation of graphene nanosheets by X-ray diffraction, Raman spectroscopy, and high-resolution transmission electron microscopy. The electrochemical performance of the graphene nanosheets was evaluated using cyclic voltammetry, galvanostatic charge-discharge cycling, and electrochemical impedance spectroscopy. In order to address the feasibility of their use as lightweight anodes for a Li ion battery, we also present the direct assembly of graphene nanosheets onto metal current collectors and the fabrication of freestanding graphene nanosheets paper electrodes.",

keywords = "Electron microscopy, Microstructure, Nanostructures",

author = "Lee, {Seung Hun} and Seo, {Seung Deok} and Park, {Kyung Soo} and Shim, {Hyun Woo} and Kim, {Dong Wan}",

note = "Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (No. 2011-0019119, 2011-0030745, and 2011-0030300 ).",

year = "2012",

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doi = "10.1016/j.matchemphys.2012.04.043",

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AU - Lee, Seung Hun

AU - Seo, Seung Deok

AU - Park, Kyung Soo

AU - Shim, Hyun Woo

AU - Kim, Dong Wan

N1 - Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (No. 2011-0019119, 2011-0030745, and 2011-0030300 ).

PY - 2012/8/15

Y1 - 2012/8/15

N2 - Graphene nanosheets were produced through electrolytic exfoliation of graphite foils in an aqueous solution containing an electrolyte, poly(sodium-4-styrenesulfonate). We confirmed the formation of graphene nanosheets by X-ray diffraction, Raman spectroscopy, and high-resolution transmission electron microscopy. The electrochemical performance of the graphene nanosheets was evaluated using cyclic voltammetry, galvanostatic charge-discharge cycling, and electrochemical impedance spectroscopy. In order to address the feasibility of their use as lightweight anodes for a Li ion battery, we also present the direct assembly of graphene nanosheets onto metal current collectors and the fabrication of freestanding graphene nanosheets paper electrodes.

AB - Graphene nanosheets were produced through electrolytic exfoliation of graphite foils in an aqueous solution containing an electrolyte, poly(sodium-4-styrenesulfonate). We confirmed the formation of graphene nanosheets by X-ray diffraction, Raman spectroscopy, and high-resolution transmission electron microscopy. The electrochemical performance of the graphene nanosheets was evaluated using cyclic voltammetry, galvanostatic charge-discharge cycling, and electrochemical impedance spectroscopy. In order to address the feasibility of their use as lightweight anodes for a Li ion battery, we also present the direct assembly of graphene nanosheets onto metal current collectors and the fabrication of freestanding graphene nanosheets paper electrodes.

KW - Electron microscopy

KW - Microstructure

KW - Nanostructures

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EP - 316

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

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Synthesis of graphene nanosheets by the electrolytic exfoliation of graphite and their direct assembly for lithium ion battery anodes

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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