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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201806547
|2 doi
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|a pubmed24n0970.xml
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|a (DE-627)NLM291160328
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|a (NLM)30484914
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Lim, Won-Gwang
|e verfasserin
|4 aut
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|a Approaching Ultrastable High-Rate Li-S Batteries through Hierarchically Porous Titanium Nitride Synthesized by Multiscale Phase Separation
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|c 2019
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 16.01.2019
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a Porous architectures are important in determining the performance of lithium-sulfur batteries (LSBs). Among them, multiscale porous architecutures are highly desired to tackle the limitations of single-sized porous architectures, and to combine the advantages of different pore scales. Although a few carbonaceous materials with multiscale porosity are employed in LSBs, their nonpolar surface properties cause the severe dissolution of lithium polysulfides (LiPSs). In this context, multiscale porous structure design of noncarbonaceous materials is highly required, but has not been exploited in LSBs yet because of the absence of a facile method to control the multiscale porous inorganic materials. Here, a hierarchically porous titanium nitride (h-TiN) is reported as a multifunctional sulfur host, integrating the advantages of multiscale porous architectures with intrinsic surface properties of TiN to achieve high-rate and long-life LSBs. The macropores accommodate the high amount of sulfur, facilitate the electrolyte penetration and transportation of Li+ ions, while the mesopores effectively prevent the LiPS dissolution. TiN strongly adsorbs LiPS, mitigates the shuttle effect, and promotes the redox kinetics. Therefore, h-TiN/S shows a reversible capacity of 557 mA h g-1 even after 1000 cycles at 5 C rate with only 0.016% of capacity decay per cycle
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|a Journal Article
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|a hierarchical architecture
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|a multiscale phase separation
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|a surface chemical properties
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|a titanium nitride
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|a ultrastable lithium-sulfur batteries
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| 700 |
1 |
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|a Jo, Changshin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Cho, Ara
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hwang, Jongkook
|e verfasserin
|4 aut
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1 |
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|a Kim, Seongseop
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Han, Jeong Woo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lee, Jinwoo
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 31(2019), 3 vom: 30. Jan., Seite e1806547
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
1 |
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|g volume:31
|g year:2019
|g number:3
|g day:30
|g month:01
|g pages:e1806547
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|u http://dx.doi.org/10.1002/adma.201806547
|3 Volltext
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|d 31
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|h e1806547
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