Electrochemical behavior of a silicon monoxide and Li-powder double layer anode cell

Il Won Seong; Woo Young Yoon

doi:10.1016/j.jpowsour.2010.01.065

Electrochemical behavior of a silicon monoxide and Li-powder double layer anode cell

Il Won Seong, Woo Young Yoon

Department of Materials Science and Engineering

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

36 Citations (Scopus)

Abstract

A new technique for synthesizing double layer anodes with silicon monoxide and Li powder has been developed to reduce the initial capacity loss of silicon monoxide anodes. Double layer anode (DLA) cells are fabricated using Li emulsified powders on a Cu foil and silicon monoxide powders on a Cu mesh collector and their electrochemical behaviors are studied. The DLA cells show reduced initial irreversibility and enhanced coulombic efficiency. The coulombic efficiency of the first cycle of the DLA cell is over 100% and its capacity remains as 700 mAh g^-1 up to 20 cycles. SEM observation shows that the Li-powder layer in DLA compensated for the initial irreversible loss and vanished after several cycles.

Original language	English
Pages (from-to)	6143-6147
Number of pages	5
Journal	Journal of Power Sources
Volume	195
Issue number	18
DOIs	https://doi.org/10.1016/j.jpowsour.2010.01.065
Publication status	Published - 2010 Sept 15

Keywords

Double layer anode
Initial irreversibility
Lithium powder
Lithium secondary battery
Silicon monoxide

ASJC Scopus subject areas

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

UN SDGs

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

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10.1016/j.jpowsour.2010.01.065

Cite this

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title = "Electrochemical behavior of a silicon monoxide and Li-powder double layer anode cell",

abstract = "A new technique for synthesizing double layer anodes with silicon monoxide and Li powder has been developed to reduce the initial capacity loss of silicon monoxide anodes. Double layer anode (DLA) cells are fabricated using Li emulsified powders on a Cu foil and silicon monoxide powders on a Cu mesh collector and their electrochemical behaviors are studied. The DLA cells show reduced initial irreversibility and enhanced coulombic efficiency. The coulombic efficiency of the first cycle of the DLA cell is over 100% and its capacity remains as 700 mAh g-1 up to 20 cycles. SEM observation shows that the Li-powder layer in DLA compensated for the initial irreversible loss and vanished after several cycles.",

keywords = "Double layer anode, Initial irreversibility, Lithium powder, Lithium secondary battery, Silicon monoxide",

author = "Seong, {Il Won} and Yoon, {Woo Young}",

note = "Funding Information: This work was supported by a Korea Research Foundation Grant funded by the Korean Government ( KRF-2008-313-D01288 ). This work is partly suppoted by a Korea University Grant. ",

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AU - Yoon, Woo Young

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PY - 2010/9/15

Y1 - 2010/9/15

N2 - A new technique for synthesizing double layer anodes with silicon monoxide and Li powder has been developed to reduce the initial capacity loss of silicon monoxide anodes. Double layer anode (DLA) cells are fabricated using Li emulsified powders on a Cu foil and silicon monoxide powders on a Cu mesh collector and their electrochemical behaviors are studied. The DLA cells show reduced initial irreversibility and enhanced coulombic efficiency. The coulombic efficiency of the first cycle of the DLA cell is over 100% and its capacity remains as 700 mAh g-1 up to 20 cycles. SEM observation shows that the Li-powder layer in DLA compensated for the initial irreversible loss and vanished after several cycles.

AB - A new technique for synthesizing double layer anodes with silicon monoxide and Li powder has been developed to reduce the initial capacity loss of silicon monoxide anodes. Double layer anode (DLA) cells are fabricated using Li emulsified powders on a Cu foil and silicon monoxide powders on a Cu mesh collector and their electrochemical behaviors are studied. The DLA cells show reduced initial irreversibility and enhanced coulombic efficiency. The coulombic efficiency of the first cycle of the DLA cell is over 100% and its capacity remains as 700 mAh g-1 up to 20 cycles. SEM observation shows that the Li-powder layer in DLA compensated for the initial irreversible loss and vanished after several cycles.

KW - Double layer anode

KW - Initial irreversibility

KW - Lithium powder

KW - Lithium secondary battery

KW - Silicon monoxide

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Electrochemical behavior of a silicon monoxide and Li-powder double layer anode cell

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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