Integrated porous cobalt oxide/cobalt anode with micro- and nano-pores for lithium ion battery

Hyeji Park; Kyungbae Kim; Kyeongjae Jeong; Jin Soo Kang; Hoon Hwe Cho; Balamurugan Thirumalraj; Yung Eun Sung; Heung Nam Han; Jae Hun Kim; David C. Dunand; Heeman Choe

doi:10.1016/j.apsusc.2020.146592

Integrated porous cobalt oxide/cobalt anode with micro- and nano-pores for lithium ion battery

Hyeji Park, Kyungbae Kim, Kyeongjae Jeong, Jin Soo Kang, Hoon Hwe Cho, Balamurugan Thirumalraj, Yung Eun Sung, Heung Nam Han, Jae Hun Kim, David C. Dunand, Heeman Choe^*

^*Corresponding author for this work

Materials Science and Engineering

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

27 Scopus citations

Abstract

An integrated porous cobalt-oxide/cobalt (Co₃O₄/CoO/Co) anode was prepared by facile processes, including directional freeze casting of a Co foam and its partial thermal oxidation to Co₃O₄/CoO, for use as a high-capacity anode material for lithium-ion batteries (LIBs). The thermal oxidation created a nanostructured oxide layer, 0.4 μm in thickness, on the surface of aligned, interconnected Co lamellae comprising the foam. In this electrode design, the Co foam was used as the current collector, and the nanowall-like Co oxide (CoO and Co₃O₄) layers acted as the anode that reacted with lithium ions during discharging and charging. The integrated porous Co₃O₄/CoO/Co anode exhibits highly reversible capacity of 989 mAh g⁻¹ after 50 cycles with an coulombic efficiency of 99.4%, which is superior to that of the conventional Co foil anode (245 mAh g⁻¹). The integrated porous Co₃O₄/CoO/Co architecture demonstrated in this study has promising potential applications for self-supporting advanced anodes with tailored macro- and microstructures for high capacity LIBs.

Original language	English (US)
Article number	146592
Journal	Applied Surface Science
Volume	525
DOIs	https://doi.org/10.1016/j.apsusc.2020.146592
State	Published - Sep 30 2020

Funding

This research was supported by CellMobility Inc . HC also acknowledges supports from the Basic Science Research Program ( NRF-2018R1D1A1B07048390 ; 2018K1A3A1A39086825 ) from the National Research Foundation of Korea . HP also acknowledged support from the Basic Science Research Program ( 2019R1I1A1A01058247 ) through the NRF . JSK and Y-ES acknowledge support from Institute for Basic Science ( IBS-R006-A2 ) in Republic of Korea. HHC acknowledges support from the National Research Foundation of Korea (NRF) grants funded by the Ministry of Science and ICT (MSIT) (No. NRF-2018R1A5A1025224 ). This research was supported by CellMobility Inc. HC also acknowledges supports from the Basic Science Research Program (NRF-2018R1D1A1B07048390; 2018K1A3A1A39086825) from the National Research Foundation of Korea. HP also acknowledged support from the Basic Science Research Program (2019R1I1A1A01058247) through the NRF. JSK and Y-ES acknowledge support from Institute for Basic Science (IBS-R006-A2) in Republic of Korea. HHC acknowledges support from the National Research Foundation of Korea (NRF) grants funded by the Ministry of Science and ICT (MSIT) (No. NRF-2018R1A5A1025224).

Keywords

Cobalt foam
Cobalt oxide anode
Finite element modeling
Freeze casting
Lithium ion battery
Thermal oxidation

ASJC Scopus subject areas

Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films

UN SDGs

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

Access to Document

10.1016/j.apsusc.2020.146592

Cite this

@article{1939e1049b48428196180789aa44bd12,

title = "Integrated porous cobalt oxide/cobalt anode with micro- and nano-pores for lithium ion battery",

abstract = "An integrated porous cobalt-oxide/cobalt (Co3O4/CoO/Co) anode was prepared by facile processes, including directional freeze casting of a Co foam and its partial thermal oxidation to Co3O4/CoO, for use as a high-capacity anode material for lithium-ion batteries (LIBs). The thermal oxidation created a nanostructured oxide layer, 0.4 μm in thickness, on the surface of aligned, interconnected Co lamellae comprising the foam. In this electrode design, the Co foam was used as the current collector, and the nanowall-like Co oxide (CoO and Co3O4) layers acted as the anode that reacted with lithium ions during discharging and charging. The integrated porous Co3O4/CoO/Co anode exhibits highly reversible capacity of 989 mAh g−1 after 50 cycles with an coulombic efficiency of 99.4\%, which is superior to that of the conventional Co foil anode (245 mAh g−1). The integrated porous Co3O4/CoO/Co architecture demonstrated in this study has promising potential applications for self-supporting advanced anodes with tailored macro- and microstructures for high capacity LIBs.",

keywords = "Cobalt foam, Cobalt oxide anode, Finite element modeling, Freeze casting, Lithium ion battery, Thermal oxidation",

author = "Hyeji Park and Kyungbae Kim and Kyeongjae Jeong and Kang, \{Jin Soo\} and Cho, \{Hoon Hwe\} and Balamurugan Thirumalraj and Sung, \{Yung Eun\} and Han, \{Heung Nam\} and Kim, \{Jae Hun\} and Dunand, \{David C.\} and Heeman Choe",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier B.V.",

year = "2020",

month = sep,

day = "30",

doi = "10.1016/j.apsusc.2020.146592",

language = "English (US)",

volume = "525",

journal = "Applied Surface Science",

issn = "0169-4332",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Integrated porous cobalt oxide/cobalt anode with micro- and nano-pores for lithium ion battery

AU - Park, Hyeji

AU - Kim, Kyungbae

AU - Jeong, Kyeongjae

AU - Kang, Jin Soo

AU - Cho, Hoon Hwe

AU - Thirumalraj, Balamurugan

AU - Sung, Yung Eun

AU - Han, Heung Nam

AU - Kim, Jae Hun

AU - Dunand, David C.

AU - Choe, Heeman

PY - 2020/9/30

Y1 - 2020/9/30

N2 - An integrated porous cobalt-oxide/cobalt (Co3O4/CoO/Co) anode was prepared by facile processes, including directional freeze casting of a Co foam and its partial thermal oxidation to Co3O4/CoO, for use as a high-capacity anode material for lithium-ion batteries (LIBs). The thermal oxidation created a nanostructured oxide layer, 0.4 μm in thickness, on the surface of aligned, interconnected Co lamellae comprising the foam. In this electrode design, the Co foam was used as the current collector, and the nanowall-like Co oxide (CoO and Co3O4) layers acted as the anode that reacted with lithium ions during discharging and charging. The integrated porous Co3O4/CoO/Co anode exhibits highly reversible capacity of 989 mAh g−1 after 50 cycles with an coulombic efficiency of 99.4%, which is superior to that of the conventional Co foil anode (245 mAh g−1). The integrated porous Co3O4/CoO/Co architecture demonstrated in this study has promising potential applications for self-supporting advanced anodes with tailored macro- and microstructures for high capacity LIBs.

AB - An integrated porous cobalt-oxide/cobalt (Co3O4/CoO/Co) anode was prepared by facile processes, including directional freeze casting of a Co foam and its partial thermal oxidation to Co3O4/CoO, for use as a high-capacity anode material for lithium-ion batteries (LIBs). The thermal oxidation created a nanostructured oxide layer, 0.4 μm in thickness, on the surface of aligned, interconnected Co lamellae comprising the foam. In this electrode design, the Co foam was used as the current collector, and the nanowall-like Co oxide (CoO and Co3O4) layers acted as the anode that reacted with lithium ions during discharging and charging. The integrated porous Co3O4/CoO/Co anode exhibits highly reversible capacity of 989 mAh g−1 after 50 cycles with an coulombic efficiency of 99.4%, which is superior to that of the conventional Co foil anode (245 mAh g−1). The integrated porous Co3O4/CoO/Co architecture demonstrated in this study has promising potential applications for self-supporting advanced anodes with tailored macro- and microstructures for high capacity LIBs.

KW - Cobalt foam

KW - Cobalt oxide anode

KW - Finite element modeling

KW - Freeze casting

KW - Lithium ion battery

KW - Thermal oxidation

UR - https://www.scopus.com/pages/publications/85084677078

UR - https://www.scopus.com/inward/citedby.url?scp=85084677078&partnerID=8YFLogxK

U2 - 10.1016/j.apsusc.2020.146592

DO - 10.1016/j.apsusc.2020.146592

M3 - Article

AN - SCOPUS:85084677078

SN - 0169-4332

VL - 525

JO - Applied Surface Science

JF - Applied Surface Science

M1 - 146592

ER -

Integrated porous cobalt oxide/cobalt anode with micro- and nano-pores for lithium ion battery

Abstract

Funding

Keywords

ASJC Scopus subject areas

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this