l-Tryptophan : Antioxidant as a Film-Forming Additive for a High-Voltage Cathode

l-tryptophan (TrP) was investigated as a functional film-forming additive on a lithium-rich layered oxide cathode because it has a much lower oxidation potential than other common carbonate-based electrolytes. Owing to its prior oxidation to a base electrolyte, an artificial cathode-electrolyte inte...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 36(2020), 11 vom: 24. März, Seite 2823-2828
1. Verfasser: Kang, Yoon-Sok (VerfasserIn)
Weitere Verfasser: Park, Insun, Park, Min Sik, Choi, Woon Ih, Lee, Seung Yeon, Mun, Junyoung, Choi, Byungjin, Koh, Meiten, Kim, Dong Young, Park, Kwangjin
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2020
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article Research Support, Non-U.S. Gov't
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520 |a l-tryptophan (TrP) was investigated as a functional film-forming additive on a lithium-rich layered oxide cathode because it has a much lower oxidation potential than other common carbonate-based electrolytes. Owing to its prior oxidation to a base electrolyte, an artificial cathode-electrolyte interphase (CEI) was formed on the cathode surface, which could be confirmed via X-ray photoelectron spectroscopy and scanning electron microscopy and verified through density functional theory calculations. The functional film formed on the cathode surface suppressed the side reactions between the cathode and electrolyte during cell cycling. As a result, the film prevented CEI thickening and performance deterioration. The optimum weight of TrP was determined to be 0.4 wt % for obtaining the best performance 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
700 1 |a Park, Insun  |e verfasserin  |4 aut 
700 1 |a Park, Min Sik  |e verfasserin  |4 aut 
700 1 |a Choi, Woon Ih  |e verfasserin  |4 aut 
700 1 |a Lee, Seung Yeon  |e verfasserin  |4 aut 
700 1 |a Mun, Junyoung  |e verfasserin  |4 aut 
700 1 |a Choi, Byungjin  |e verfasserin  |4 aut 
700 1 |a Koh, Meiten  |e verfasserin  |4 aut 
700 1 |a Kim, Dong Young  |e verfasserin  |4 aut 
700 1 |a Park, Kwangjin  |e verfasserin  |4 aut 
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