Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Dong-Hee Yeon"'
Autor:
Dong Jin Ham, Kwangjin Park, Sung Jin Ahn, Dong-Hee Yeon, San Moon, Seongyong Park, Jihyun Jang
Publikováno v:
RSC Advances. 10:26756-26764
The Zr solvent solution method, which allows primary and secondary particles of LiNi0.90Co0.05Mn0.05O2 (NCM) to be uniformly doped with Zr and simultaneously to be coated with an Li2ZrO3 layer, is introduced in this paper. For Zr doped NCM, which is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f323d1ee70448d7c8e24eac653cc87e1
https://doi.org/10.1039/d0ra01543a
https://doi.org/10.1039/d0ra01543a
Autor:
Sung-Jin Ahn, Seongyong Park, Jin-Hwan Park, Jun-Ho Park, Kanghee Lee, Kwangjin Park, Heung Nam Han, Dongwook Han, Byungjin Choi, Heechul Jung, Dong-Hee Yeon
Publikováno v:
Journal of Materials Chemistry A. 7:15190-15197
We describe for the first time molecular rearrangements in a highly stable and porous Ni-rich layered oxide cathode material (LiNi0.80Co0.15Mn0.05O2, Ni-rich NCM) using a thermally reactive, Co-embedded metal–organic framework (MOF). The thermal de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6594c0c5bf2e375a784468ec712bb358
https://doi.org/10.1039/c9ta02462j
https://doi.org/10.1039/c9ta02462j
Publikováno v:
Journal of Power Sources. 360:453-459
Spinel-embedded lithium-rich oxides are synthesized and their structural phases are analyzed. The type of spinel LiM0.5Mn1.5O4 (M = Ni, Co, Mn) embedded is varied by controlling the spinel composition and content. Of the various composites fabricated
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b47210f6d8e9c41f6e1a071b1bdad5a3
https://doi.org/10.1016/j.jpowsour.2017.06.034
https://doi.org/10.1016/j.jpowsour.2017.06.034
Autor:
Yongping Zheng, Fantai Kong, Jin Hwan Park, Roberto C. Longo, Chaoping Liang, Seok-Gwang Doo, Kyeongjae Cho, Dong Hee Yeon
Publikováno v:
Computational Materials Science. 127:128-135
Conventional interatomic potential methods for Li-ion battery cathode materials normally use fixed-charge models, which are not accurate enough to model the dynamical oxidation state change of transition metals during electrochemical reactions. In or
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::54d1878851b75d74634265d631f8745e
https://doi.org/10.1016/j.commatsci.2016.10.030
https://doi.org/10.1016/j.commatsci.2016.10.030
Autor:
Jae-Hyun Shim, Jin Hwan Park, Andrei Kapylou, Dae Hoe Lee, Dong Hee Yeon, Sun-Ho Kang, Jay-Hyok Song, Donghan Kim
Publikováno v:
Nano Energy. 30:717-727
Li-rich layered oxides show high reversible capacities (≥250 mA h/g) in rechargeable lithium-ion batteries. However, their energy densities are considerably reduced upon cycling due to a voltage depression originated from the layered-to-spinel phas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::469cbc4591f6226aedb19597f36a2780
https://doi.org/10.1016/j.nanoen.2016.09.028
https://doi.org/10.1016/j.nanoen.2016.09.028
Autor:
Chanho Pak, Jinwon Cho, Seon-Ah Jin, Dae Jong You, Hyung Chul Ham, Jung Ock Park, Kyungjung Kwon, Dong-Hee Yeon
Publikováno v:
Journal of Alloys and Compounds. 849:156642
The hydrogen oxidation reaction (HOR) activity of PdRu bimetallic catalysts in acidic media is first investigated by preparing PdRu nanoparticles of various compositions (Pd:Ru atomic ratios of 1:0, 9:1, 3:1, 1:1, 1:9, 1:20 and 0:1) supported on carb
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::569459b8e5787f07933f1521e62ded30
https://doi.org/10.1016/j.jallcom.2020.156642
https://doi.org/10.1016/j.jallcom.2020.156642
Autor:
Byungjin Choi, Kwangjin Park, Seok-Gwang Doo, Jung-Hwa Kim, Jin-Hwan Park, Hyoun-Ee Kim, Seong-Young Park, Jay-Hyok Song, Dong-Hee Yeon
Publikováno v:
Solid State Ionics. 293:77-84
The composite material Li x Ni 0.25 Co 0.10 Mn 0.65 O (3.4 + x) / 2 (x = 1.6, 1.4, 1.2, 1.0, 0.8) were synthesized and characterized for their structural, morphological, and performance as cathode materials in Li-ion batteries. The Rietveld refinemen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80674ca0b9e9298fed364861e5e9417f
https://doi.org/10.1016/j.ssi.2016.06.012
https://doi.org/10.1016/j.ssi.2016.06.012
Autor:
Dong Hee Yeon, Jin Hwan Park, Roberto C. Longo, Kyeongjae Cho, Chaoping Liang, Seok-Gwang Doo, Yongping Zheng, Fantai Kong
Publikováno v:
Chemistry of Materials. 28:6942-6952
Anion doping is one of the most widely adopted strategies to improve the electrochemical performance of cathode materials for Li-ion batteries. However, undesirable side effects are often observed together with enhanced electrochemical properties, le
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ff546289a65c3a569aba22e9d3c8b696
https://doi.org/10.1021/acs.chemmater.6b02627
https://doi.org/10.1021/acs.chemmater.6b02627
Autor:
Dong Hee Yeon, Fantai Kong, Chaoping Liang, Seok-Gwang Doo, Jaegu Yoon, Kyeongjae Cho, Jin Hwan Park, Roberto C. Longo
Publikováno v:
The Journal of Physical Chemistry C. 120:8540-8549
The phase diagram of the Li–Ni–Co–Mn layered oxide pseudoquaternary system is used as starting point to elucidate the influence of transition metal (TM) ordering on the structures and electrochemistry of positive electrode materials with LiNi1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b7c103f0a83a8cd5d0e05a1614dcc64
https://doi.org/10.1021/acs.jpcc.6b02240
https://doi.org/10.1021/acs.jpcc.6b02240
Autor:
Kyeong-Seok Moon, Dong-Hee Yeon, Ju-Sik Kim, Sooyeon Seo, Sung-Jin Ahn, Doh Won Jung, Chan Kwak, Sang Mock Lee, Hee Jung Park
Publikováno v:
Scripta Materialia. 113:59-62
A new composite oxide, Ba 0.5 Sr 0.5 Co 0.8 Fe 0.1 Zn 0.1 O 3 − δ –La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3 − δ , was investigated as a cathode material for intermediate-temperature solid-oxide fuel cells. The area-specific polarization resistance of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::095b1d788b43c460438ce4020796ac24
https://doi.org/10.1016/j.scriptamat.2015.09.042
https://doi.org/10.1016/j.scriptamat.2015.09.042