Joong Kee Lee

Prof. Dr. Joong Kee Lee

orcid

Research Focus & Metrics

Academic Career Length

25Years (2002-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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14 July 2020 in Advanced Functional Materials
Verified
Journal Article
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JKJi Young Kim
Ji Young Kim
GLGuicheng Liu
Guicheng Liu
GSGa Young Shim
Ga Young Shim
HKHansung Kim
Hansung Kim
JLJoong Kee Lee
Joong Kee Lee

4 April 2018 in ACS Applied Materials & Interfaces
Verified
Journal Article
Closed access
MWManxiang Wang
Manxiang Wang
GLGuicheng Liu
Guicheng Liu
HYHyunjin Yu
Hyunjin Yu
SLSang-Hyup Lee
Sang-Hyup Lee
LWLei Wang
Lei Wang
JLJoong Kee Lee
Joong Kee Lee

1 April 2015 in Journal of Power Sources
Verified
Journal Article
Closed access
JKJung Sub Kim
Jung Sub Kim
Wilhelm PflegingWilhelm Pfleging
Wilhelm Pfleging
RKRobert Kohler
Robert Kohler
HSHans Jürgen Seifert
Hans Jürgen Seifert
TKTae Yong Kim
Tae Yong Kim
JLJoong Kee Lee
Joong Kee Lee

22 January 2016 in Journal of Materials Chemistry A
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Journal Article
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MHMartin Halim
Martin Halim
CHChairul Hudaya
Chairul Hudaya
AKA-Young Kim
A-Young Kim
JLJoong Kee Lee
Joong Kee Lee
Silicon oxycarbide (SiOC) is gaining increasing attention as a promising anode material for lithium ion batteries due to its higher reversible capacity compared to incumbent graphite. The kinetic processes at a SiOC anode result in rapid capacity fading even at a relatively low current density, thereby hindering its commercialization. Herein, a distinctive, phenyl-rich silicone oil is used as a precursor for producing SiOC anode materials via simple pyrolysis. We find that only silicone oil with phenyl-rich rings can be converted into SiOC materials. The phenyl group was crucial for carbon incorporation to allow Si–O–C bonding and the formation of a free-carbon phase. The resulting SiOC anode exhibited stable cyclability up to 250 cycles, with a discharge capacity of 800 mA h g−1 at a current density of 200 mA g−1. The remarkable cycle performance of SiOC was correlated with its low dimensional expansion (7%) during lithiation, which maintains its structure over cycling. Rate capability tests showed a highly stable performance with a maximum discharge capacity of 852 mA h g−1 at a current density of 100 mA g−1. When the discharge current density was increased 64-fold, the reversible capacity of the SiOC anode was 90% of its maximum capacity, 772 mA h g−1. The excellent electrochemical performance of SiOC could be attributed to the rapid mobility of Li+ within the SiOC matrix, as indicated by a Li+ diffusion coefficient of 5.1 × 10−6 cm2 s−1.

4 June 2018 in ACS Nano
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Journal Article
Closed access
RARyanda Enggar Anugrah Ardhi
Ryanda Enggar Anugrah Ardhi
GLGuicheng Liu
Guicheng Liu
MTMinh Xuan Tran
Minh Xuan Tran
CHChairul Hudaya
Chairul Hudaya
JKJi Young Kim
Ji Young Kim
JLJoong Kee Lee
Joong Kee Lee

20 February 2018 in ACS Applied Materials & Interfaces
Verified
Journal Article
Closed access
JKJi Young Kim
Ji Young Kim
AKA-Young Kim
A-Young Kim
GLGuicheng Liu
Guicheng Liu
JWJae-Young Woo
Jae-Young Woo
HKHansung Kim
Hansung Kim
JLJoong Kee Lee
Joong Kee Lee