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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201905658
|2 doi
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|a pubmed24n1014.xml
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|a (DE-627)NLM304315214
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|a (NLM)31830338
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Yao, Yu
|e verfasserin
|4 aut
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| 245 |
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|a A Dual-Functional Conductive Framework Embedded with TiN-VN Heterostructures for Highly Efficient Polysulfide and Lithium Regulation toward Stable Li-S Full Batteries
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|c 2020
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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 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 © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a Lithium-sulfur (Li-S) batteries are strongly considered as next-generation energy storage systems because of their high energy density. However, the shuttling of lithium polysulfides (LiPS), sluggish reaction kinetics, and uncontrollable Li-dendrite growth severely degrade the electrochemical performance of Li-S batteries. Herein, a dual-functional flexible free-standing carbon nanofiber conductive framework in situ embedded with TiN-VN heterostructures (TiN-VNCNFs) as an advanced host simultaneously for both the sulfur cathode (S/TiN-VN@CNFs) and the lithium anode (Li/TiN-VN@CNFs) is designed. As cathode host, the TiN-VN@CNFs can offer synergistic function of physical confinement, chemical anchoring, and superb electrocatalysis of LiPS redox reactions. Meanwhile, the well-designed host with excellent lithiophilic feature can realize homogeneous lithium deposition for suppressing dendrite growth. Combined with these merits, the full battery (denoted as S/TiN-VN@CNFs || Li/TiN-VN@CNFs) exhibits remarkable electrochemical properties including high reversible capacity of 1110 mAh g-1 after 100 cycles at 0.2 C and ultralong cycle life over 600 cycles at 2 C. Even with a high sulfur loading of 5.6 mg cm-2 , the full cell can achieve a high areal capacity of 5.5 mAh cm-2 at 0.1 C. This work paves a new design from theoretical and experimental aspects for fabricating high-energy-density flexible Li-S full batteries
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|a Journal Article
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|a Li dendrite
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|a Li-S full battery
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|a TiN-VN heterostructure
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|a chemisorption
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4 |
|a electrocatalysis
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| 700 |
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|a Wang, Haiyun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yang, Hai
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zeng, Sifan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Xu, Rui
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Fanfan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Shi, Pengcheng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Feng, Yuezhan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Kai
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yang, Wenjin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wu, Xiaojun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Luo, Wei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yu, Yan
|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 32(2020), 6 vom: 23. Feb., Seite e1905658
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
1 |
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|g volume:32
|g year:2020
|g number:6
|g day:23
|g month:02
|g pages:e1905658
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| 856 |
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|u http://dx.doi.org/10.1002/adma.201905658
|3 Volltext
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