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Park, Soojin
Nano-Functional Materials Lab
Research Interests
  • Block Copolymers, nanostructured materials for Lithium-Ion batteries, wearable and stretchable energy storage applications

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Optimization of Carbon- and Binder-Free Au Nanoparticle-Coated Ni Nanowire Electrodes for Lithium-Oxygen Batteries

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Title
Optimization of Carbon- and Binder-Free Au Nanoparticle-Coated Ni Nanowire Electrodes for Lithium-Oxygen Batteries
Author
Kim, Sun TaiPark, SoojinChoi, Nam-SoonCho, Jaephil
Issue Date
2015-03
Publisher
WILEY-V C H VERLAG GMBH
Citation
ADVANCED ENERGY MATERIALS, v.5, no.3, pp.1401030
Abstract
A Au nanoparticle-coated Ni nanowire substrate without binder or carbon is used as the electrode (denoted as the Au/Ni electrode) for Li-oxygen (Li-O-2) batteries. A minimal amount of Au nanoparticles with sizes of <30 nm on a Ni nanowire substrate are coated using a simple electrodeposition method to the extent that maximum capacity can be utilized. This optimized, one body, Au/Ni electrode shows high capacities of 921 mAh g(Au)(-1), 591 mAh g(Au)(-1), and 359 mAh g(Au)(-1), which are obtained at currents of 300 mAg(Au)(-1), 500 mAg(Au)(-1), and 1000 mAg(Au)(-1) respectively. More importantly, the Au/Ni electrode exhibits excellent cycle stability over 200 cycles.
URI
https://scholarworks.unist.ac.kr/handle/201301/10088
URL
http://onlinelibrary.wiley.com/doi/10.1002/aenm.201401030/abstract?systemMessage=Wiley+Online+Library+will+be+disrupted+on+7th+March+from+10%3A00-13%3A00+GMT+%2806%3A00-09%3A00+EST%29+for+essential+maintenance.++Apologies+for+the+inconvenience.
DOI
10.1002/aenm.201401030
ISSN
1614-6832
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