The effects of current density and amount of discharge on dendrite formation in the lithium powder anode electrode

Il Won Seong; Chang Hyun Hong; Bok Ki Kim; Woo Young Yoon

doi:10.1016/j.jpowsour.2007.12.062

The effects of current density and amount of discharge on dendrite formation in the lithium powder anode electrode

Il Won Seong
, Chang Hyun Hong
, Bok Ki Kim
, Woo Young Yoon^*

^*Corresponding author for this work

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

136 Citations (Scopus)

Abstract

A compacted lithium powder anode was used to improve the demerits of dendrite formation of lithium metal. Dendrite formation of lithium metal was restrained to use compacted lithium powder anode under a specific amount of discharge and the current density. In this study, the amount of discharge and the current density which suppress dendrite formation at the surface of a lithium powder electrode were investigated on an experimental basis. Discharge/charge reactions were accomplished on various values of the amount of discharge and current density by using beaker cells. It was analyzed by SEM images whether dendrite was formed or not on the surface of lithium powder electrode. From the various experiments, the relationship between current density and total amount of discharge was deduced as a simple mathematical model. From the model, the critical condition of total amount of discharge for dendrite formation in Li-powder electrode was increased from 0.1 mA cm^-2 to 1 mA cm^-2 current density. However, the critical condition of total amount of discharge was decreased over 1 mA cm^-2. Using the model, the condition whether dendrite formed or not on the Li-powder anode could be estimated.

Original language	English
Pages (from-to)	769-773
Number of pages	5
Journal	Journal of Power Sources
Volume	178
Issue number	2
DOIs	https://doi.org/10.1016/j.jpowsour.2007.12.062
Publication status	Published - 2008 Apr 1

Bibliographical note

Funding Information:
This work was supported financially by the Ministry of Education and Human Resources Development (MOE), the Ministry of Commerce, Industry and Energy (MOCIE), and the Ministry of Labour (MOLAB) through the fostering project of the Lab of Excellency.

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Dendrite formation
Lithium metal battery
Lithium powder electrode
Lithium secondary battery

ASJC Scopus subject areas

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

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10.1016/j.jpowsour.2007.12.062

Cite this

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title = "The effects of current density and amount of discharge on dendrite formation in the lithium powder anode electrode",

abstract = "A compacted lithium powder anode was used to improve the demerits of dendrite formation of lithium metal. Dendrite formation of lithium metal was restrained to use compacted lithium powder anode under a specific amount of discharge and the current density. In this study, the amount of discharge and the current density which suppress dendrite formation at the surface of a lithium powder electrode were investigated on an experimental basis. Discharge/charge reactions were accomplished on various values of the amount of discharge and current density by using beaker cells. It was analyzed by SEM images whether dendrite was formed or not on the surface of lithium powder electrode. From the various experiments, the relationship between current density and total amount of discharge was deduced as a simple mathematical model. From the model, the critical condition of total amount of discharge for dendrite formation in Li-powder electrode was increased from 0.1 mA cm-2 to 1 mA cm-2 current density. However, the critical condition of total amount of discharge was decreased over 1 mA cm-2. Using the model, the condition whether dendrite formed or not on the Li-powder anode could be estimated.",

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author = "Seong, \{Il Won\} and Hong, \{Chang Hyun\} and Kim, \{Bok Ki\} and Yoon, \{Woo Young\}",

note = "Funding Information: This work was supported financially by the Ministry of Education and Human Resources Development (MOE), the Ministry of Commerce, Industry and Energy (MOCIE), and the Ministry of Labour (MOLAB) through the fostering project of the Lab of Excellency. ",

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AU - Hong, Chang Hyun

AU - Kim, Bok Ki

AU - Yoon, Woo Young

N1 - Funding Information: This work was supported financially by the Ministry of Education and Human Resources Development (MOE), the Ministry of Commerce, Industry and Energy (MOCIE), and the Ministry of Labour (MOLAB) through the fostering project of the Lab of Excellency.

PY - 2008/4/1

Y1 - 2008/4/1

N2 - A compacted lithium powder anode was used to improve the demerits of dendrite formation of lithium metal. Dendrite formation of lithium metal was restrained to use compacted lithium powder anode under a specific amount of discharge and the current density. In this study, the amount of discharge and the current density which suppress dendrite formation at the surface of a lithium powder electrode were investigated on an experimental basis. Discharge/charge reactions were accomplished on various values of the amount of discharge and current density by using beaker cells. It was analyzed by SEM images whether dendrite was formed or not on the surface of lithium powder electrode. From the various experiments, the relationship between current density and total amount of discharge was deduced as a simple mathematical model. From the model, the critical condition of total amount of discharge for dendrite formation in Li-powder electrode was increased from 0.1 mA cm-2 to 1 mA cm-2 current density. However, the critical condition of total amount of discharge was decreased over 1 mA cm-2. Using the model, the condition whether dendrite formed or not on the Li-powder anode could be estimated.

AB - A compacted lithium powder anode was used to improve the demerits of dendrite formation of lithium metal. Dendrite formation of lithium metal was restrained to use compacted lithium powder anode under a specific amount of discharge and the current density. In this study, the amount of discharge and the current density which suppress dendrite formation at the surface of a lithium powder electrode were investigated on an experimental basis. Discharge/charge reactions were accomplished on various values of the amount of discharge and current density by using beaker cells. It was analyzed by SEM images whether dendrite was formed or not on the surface of lithium powder electrode. From the various experiments, the relationship between current density and total amount of discharge was deduced as a simple mathematical model. From the model, the critical condition of total amount of discharge for dendrite formation in Li-powder electrode was increased from 0.1 mA cm-2 to 1 mA cm-2 current density. However, the critical condition of total amount of discharge was decreased over 1 mA cm-2. Using the model, the condition whether dendrite formed or not on the Li-powder anode could be estimated.

KW - Dendrite formation

KW - Lithium metal battery

KW - Lithium powder electrode

KW - Lithium secondary battery

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The effects of current density and amount of discharge on dendrite formation in the lithium powder anode electrode

Abstract

Bibliographical note

UN SDGs

Keywords

ASJC Scopus subject areas

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