Výsledky vyhledávání - "Gi-Hyeok Lee"

Akademický článek

Towards commercialization of fluorinated cation-disordered rock-salt Li-ion cathodes

Autor: Gi-Hyeok Lee, Jungwoo Lim, Jeongyim Shin, Laurence J. Hardwick, Wanli Yang

Publikováno v: Frontiers in Chemistry, Vol 11 (2023)

Cation-disordered rock-salt cathodes (DRX) are promising materials that could deliver high capacities (>250 mAh g−1) with Earth abundant elements and materials. However, their electrochemical performances, other than the capacity, should be improve

Externí odkaz: https://doaj.org/article/97ad2257f3114e3e8add60979b73c91c

Zobrazit plný text záznamu

Akademický článek

Hysteresis Induced by Incomplete Cationic Redox in Li‐Rich 3d‐Transition‐Metal Layered Oxides Cathodes

Autor: Liang Fang, Limin Zhou, Mihui Park, Daseul Han, Gi‐Hyeok Lee, Seongkoo Kang, Suwon Lee, Mingzhe Chen, Zhe Hu, Kai Zhang, Kyung‐Wan Nam, Yong‐Mook Kang

Publikováno v: Advanced Science, Vol 9, Iss 23, Pp n/a-n/a (2022)

Abstract Activation of oxygen redox during the first cycle has been reported as the main trigger of voltage hysteresis during further cycles in high‐energy‐density Li‐rich 3d‐transition‐metal layered oxides. However, it remains unclear whet

Externí odkaz: https://doaj.org/article/700123313c614313b9ad56673efb44aa

Zobrazit plný text záznamu

Plný text ve formátu HTML

Akademický článek

Tuning local chemistry of P2 layered-oxide cathode for high energy and long cycles of sodium-ion battery

Autor: Chenchen Wang, Luojia Liu, Shuo Zhao, Yanchen Liu, Yubo Yang, Haijun Yu, Suwon Lee, Gi-Hyeok Lee, Yong-Mook Kang, Rong Liu, Fujun Li, Jun Chen

Publikováno v: Nature Communications, Vol 12, Iss 1, Pp 1-9 (2021)

High-capacity and structural stable cathode materials are challenges for sodium-ion batteries. Here, the authors report a layered P2-Na0.612K0.056MnO2 with large-sized K+ riveted in the Na-layers to enable 0.9 Na+ (de)insertion with a reversible phas

Externí odkaz: https://doaj.org/article/959272dda9d5425e857ef6d791cacd7c

Zobrazit plný text záznamu

Synchronized partial metal leaching and amphoteric N–P modification in MnO2 and VOx pseudocapacitor beyond its energy density limit

Autor: Lulu Lyu, Gi-Hyeok Lee, Suwon Lee, Mihui Park, Huiling Huang, Xinghui Liu, Yong-Mook Kang, Yuanzhe Piao

Publikováno v: Journal of Materials Chemistry A. 11:676-690

Cation vacancy-rich Mo, F-doped MnO2 and amphoteric N–P modified VOx are prepared with balanced capacitances and rate kinetics. Ex situ techniques disclose the impact of cation vacancy and dual anions on pseudocapacitive behavior of electrodes.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9f88865687eb8092e4d5566e7c313a4a
https://doi.org/10.1039/d2ta08157a

Zobrazit plný text záznamu

Solid–Solid Interfacial Charge Storage of Prussian Blue/rGO Mixed-Conductor Cathode for High-Power Na Ion Batteries

Autor: Jing Zhang, Jiliang Zhang, Haihua Wang, Vincent Wing-hei Lau, Gi-Hyeok Lee, Kai Zhang, Mihui Park, Yong-Mook Kang

Publikováno v: ACS Energy Letters. 7:4472-4482

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4e7e32198e8f20b06cee89021ef1e775
https://doi.org/10.1021/acsenergylett.2c02369

Zobrazit plný text záznamu

Origin of enhanced reversible Na ion storage in hard carbon anodes through p-type molecular doping

Autor: Gi-Hyeok Lee, Taesoon Hwang, Jae-Bum Kim, Junghoon Yang, Feng Zou, Maenghyo Cho, Yong-Mook Kang

Publikováno v: Journal of Materials Chemistry A. 10:16506-16513

Phosphate doped hard carbons have shown a significant capacity increase accompanied by an additional plateau in its voltage profile. The work reveals the co-contribution of oxygen atoms in phosphate and carbon atoms for the additional Na-ion storage.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6ba56a9b32f0f8fe4e780b46bebad0c2
https://doi.org/10.1039/d2ta02295h

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání