Conducting Nanopaper: A Carbon-Free Cathode Platform for Li-O-2 Batteries

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For a lithium oxygen (Li-O-2) battery air electrode, we have developed a new all-in-one platform for designing a porous, carbon-free conducting nanopaper (CNp), which has dual functions as catalyst and current-collector, composed of one-dimensional conductive nanowires bound by a chitin binder. The CNp platform is fabricated by a liquid diffusion-induced crystallization and vacuum filtration methods. Employing less than 1 wt % chitin to connect the conductive skeleton, pores and active sites for reactions have become maximized in self-standing CNp. The carbon-free CNp enables the Li-O-2 air electrode to be more stably operated compared to carbon nanofibers and other CNps bound by PVDF and PMMA; side reactions are largely suppressed on the CNp. The versatile chitin is highlighted for diverse conducting nanopapers that can be used in various applications.
Publisher
AMER CHEMICAL SOC
Issue Date
2017-03
Language
English
Article Type
Article
Keywords

LITHIUM-OXYGEN BATTERY; POSITIVE ELECTRODES; AIR BATTERIES; CHITIN; ELECTROLYTES; TRANSPORT; CRYSTALLIZATION; NANOPARTICLES; NANOFIBERS; REACTIVITY

Citation

ACS ENERGY LETTERS, v.2, no.3, pp.673 - 680

ISSN
2380-8195
DOI
10.1021/acsenergylett.7b00045
URI
http://hdl.handle.net/10203/223464
Appears in Collection
MS-Journal Papers(저널논문)
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