Zobrazeno 1 - 10 of 15 pro vyhledávání: '"Hyunwon Chu"'
1
Akademický článek
Addressing electrode passivation in lithium–sulfur batteries by site‐selective morphology‐controlled Li2S formation
Autor: Ilju Kim, Jinkwan Jung, Sejin Kim, Hannah Cho, Hyunwon Chu, Wonhee Jo, Dongjae Shin, Hyeokjin Kwon, Hee‐Tak Kim
Publikováno v: EcoMat, Vol 6, Iss 9, Pp n/a-n/a (2024)
Abstract The sulfur utilization efficiency of lithium–sulfur batteries is often limited by the uncontrolled electrodeposition of the insulating Li2S and the resulting electrode passivation. Herein, purposeful electrode and electrolyte design is use
Externí odkaz: https://doaj.org/article/c316eafcad654f3aa9594190f8879706
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2
Akademický článek
Confronting Sulfur Electrode Passivation and Li Metal Electrode Degradation in Lithium‐Sulfur Batteries Using Thiocyanate Anion
Autor: Jinkwan Jung, Hyunwon Chu, Ilju Kim, Dong Hyun Lee, Gisu Doo, Hyeokjin Kwon, Wonhee Jo, Sejin Kim, Hyenah Cho, Hee‐Tak Kim
Publikováno v: Advanced Science, Vol 10, Iss 15, Pp n/a-n/a (2023)
Abstract Salt anions with a high donor number (DN) enable high sulfur utilization in lithium‐sulfur (Li‐S) batteries by inducing three‐dimensional (3D) Li2S growth. However, their insufficient compatibility with Li metal electrodes limits their
Externí odkaz: https://doaj.org/article/125f08db80434595b728a214a98a752a
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4
Akademický článek
Achieving three-dimensional lithium sulfide growth in lithium-sulfur batteries using high-donor-number anions
Autor: Hyunwon Chu, Hyungjun Noh, Yun-Jung Kim, Seongmin Yuk, Ju-Hyuk Lee, Jinhong Lee, Hobeom Kwack, YunKyoung Kim, Doo-Kyung Yang, Hee-Tak Kim
Publikováno v: Nature Communications, Vol 10, Iss 1, Pp 1-12 (2019)
The development of new electrolyte systems is needed to optimize performance in lithium-sulfur batteries. Here the authors employ anions with high donor numbers in electrolytes to prevent passivation of the cathode surface, thereby improving sulfur u
Externí odkaz: https://doaj.org/article/94203879f356493190292f2e20320575
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6
Rational Design of Highly Packed, Crack-Free Sulfur Electrodes by Scaffold-Supported Drying for Ultrahigh-Sulfur-Loaded Lithium–Sulfur Batteries
Autor: Hobeom Kwack, Jin Hong Lee, Wonhee Jo, Yun-Jung Kim, Hee-Tak Kim, Hyunwon Chu, Hyungjun Noh
Publikováno v: ACS Applied Materials & Interfaces. 11:29849-29857
Despite the notable progress in the development of rechargeable lithium-sulfur batteries over the last decade, achieving high performance with high-sulfur-loaded sulfur cathodes remains a key challenge on the path to the commercialization of practica
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3bcf10da718dad48a316bad7ff6771b4
https://doi.org/10.1021/acsami.9b08006
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7
Tuning Two Interfaces with Fluoroethylene Carbonate Electrolytes for High-Performance Li/LCO Batteries
Autor: Jin Hong Lee, Yun-Jung Kim, Hobeom Kwack, Hyungjun Noh, Hee-Tak Kim, Hyunwon Chu, Hyun Soo Jin, Fangmin Ye, Hongkyung Lee
Publikováno v: ACS Omega, Vol 4, Iss 2, Pp 3220-3227 (2019)
ACS Omega
Various electrolytes have been reported to enhance the reversibility of Li-metal electrodes. However, for these electrolytes, concurrent and balanced control of Li-metal and positive electrode interfaces is a critical step toward fabrication of high-
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dbd4f5bdf23e09827b2e823ed5336557
https://doaj.org/article/1c5d102f6c484ba8b889e26f6589095c
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8
Achieving three-dimensional lithium sulfide growth in lithium-sulfur batteries using high-donor-number anions
Autor: Ju-Hyuk Lee, Yun-Jung Kim, Doo-Kyung Yang, Hyungjun Noh, Hyunwon Chu, Jin Hong Lee, YunKyoung Kim, Hobeom Kwack, Seongmin Yuk, Hee-Tak Kim
Publikováno v: Nature Communications, Vol 10, Iss 1, Pp 1-12 (2019)
Nature Communications
Uncontrolled growth of insulating lithium sulfide leads to passivation of sulfur cathodes, which limits high sulfur utilization in lithium-sulfur batteries. Sulfur utilization can be augmented in electrolytes based on solvents with high Gutmann Donor
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a2f2aed8990d82a0847809468df8c25
http://link.springer.com/article/10.1038/s41467-018-07975-4
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