Hierarchically structured nanoporous copper for use as lithium-ion battery anode

Gigap Han; Ji Hyun Um; Hyeji Park; Kicheol Hong; Won Sub Yoon; Heeman Choe

doi:10.1016/j.scriptamat.2018.12.030

Hierarchically structured nanoporous copper for use as lithium-ion battery anode

Gigap Han
, Ji Hyun Um
, Hyeji Park
, Kicheol Hong
, Won Sub Yoon
, Heeman Choe

Department of Energy

Kookmin University
Sungkyunkwan University

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

21 Scopus citations

Abstract

Most previously proposed methods for the manufacture of dealloyed nanoporous copper (Cu) could not be realized for practical applications, due to their poor mechanical properties caused by the use of metal ‘powders’ to create a precursor alloy prior to dealloying. Therefore, a new facile synthesis is proposed based on a pack-cementation process using Cu foil instead of Cu powder. Depending on the pack-cementation time and the amount of Al, a hierarchical micro/nanoporous Cu was also created and coated with tin. The coin-cell test exhibited a four-fold higher areal capacity (7.4 mAh/cm² without performance degradation up to 20 cycles) than graphite.

Original language	English
Pages (from-to)	9-13
Number of pages	5
Journal	Scripta Materialia
Volume	163
DOIs	https://doi.org/10.1016/j.scriptamat.2018.12.030
State	Published - 1 Apr 2019

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Copper
Electroless plating
Foams
Lithium-ion batteries
Nanostructured materials

Access to Document

10.1016/j.scriptamat.2018.12.030

Cite this

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title = "Hierarchically structured nanoporous copper for use as lithium-ion battery anode",

abstract = "Most previously proposed methods for the manufacture of dealloyed nanoporous copper (Cu) could not be realized for practical applications, due to their poor mechanical properties caused by the use of metal {\textquoteleft}powders{\textquoteright} to create a precursor alloy prior to dealloying. Therefore, a new facile synthesis is proposed based on a pack-cementation process using Cu foil instead of Cu powder. Depending on the pack-cementation time and the amount of Al, a hierarchical micro/nanoporous Cu was also created and coated with tin. The coin-cell test exhibited a four-fold higher areal capacity (7.4 mAh/cm2 without performance degradation up to 20 cycles) than graphite.",

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T1 - Hierarchically structured nanoporous copper for use as lithium-ion battery anode

AU - Han, Gigap

AU - Um, Ji Hyun

AU - Park, Hyeji

AU - Hong, Kicheol

AU - Yoon, Won Sub

AU - Choe, Heeman

PY - 2019/4/1

Y1 - 2019/4/1

N2 - Most previously proposed methods for the manufacture of dealloyed nanoporous copper (Cu) could not be realized for practical applications, due to their poor mechanical properties caused by the use of metal ‘powders’ to create a precursor alloy prior to dealloying. Therefore, a new facile synthesis is proposed based on a pack-cementation process using Cu foil instead of Cu powder. Depending on the pack-cementation time and the amount of Al, a hierarchical micro/nanoporous Cu was also created and coated with tin. The coin-cell test exhibited a four-fold higher areal capacity (7.4 mAh/cm2 without performance degradation up to 20 cycles) than graphite.

AB - Most previously proposed methods for the manufacture of dealloyed nanoporous copper (Cu) could not be realized for practical applications, due to their poor mechanical properties caused by the use of metal ‘powders’ to create a precursor alloy prior to dealloying. Therefore, a new facile synthesis is proposed based on a pack-cementation process using Cu foil instead of Cu powder. Depending on the pack-cementation time and the amount of Al, a hierarchical micro/nanoporous Cu was also created and coated with tin. The coin-cell test exhibited a four-fold higher areal capacity (7.4 mAh/cm2 without performance degradation up to 20 cycles) than graphite.

KW - Copper

KW - Electroless plating

KW - Foams

KW - Lithium-ion batteries

KW - Nanostructured materials

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ER -

Hierarchically structured nanoporous copper for use as lithium-ion battery anode

Abstract

UN SDGs

Keywords

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