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Alternative Title
Metal nanoparticles-coated gas-diffusion electrode for high efficient lithium-oxygen batteries
Abstract
Researchers have been tantalized by the high-energy density of lithium-oxygen batteries (LOBs). However, the path toward reversibility in LOBs has been fraught with challenges for (dis)charging processes. Using sputtering in this work, we successfully decorated metallic nanoparticles (NP) on a carbon-based gas-diffusion electrode (GDE) as an effective catalyst for the formation and decomposition of the Li2O2 reaction product. The LOB cell with Pt-coated GDE (Pt-GDE) shows a specific discharge capacity of 8 mAh cm?2 at a current density of 0.2 mA cm?2 with a reduced overpotential for charging steps. The LOB cell with Pt-GDE exhibits an excellent cyclability (308th cycle) with a limited capacity of 0.1 mAh cm?2.
Author(s)
윤두영정지원
Issued Date
2021
Type
Article
Keyword
lithium-oxygen batteriescathodesgas-diffusion layersmetal nanoparticlescatalysts
URI
https://oak.ulsan.ac.kr/handle/2021.oak/9006
Publisher
한국전지학회지
Location
대한민국
Language
한국어
Citation Volume
1
Citation Number
2
Citation Start Page
1
Citation End Page
5
Appears in Collections:
Engineering > Material Engineering
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