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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201704353
|2 doi
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|a pubmed25n0928.xml
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|a DE-627
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|a eng
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1 |
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|a Zheng, Xinyao
|e verfasserin
|4 aut
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| 245 |
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|a Synergism of Rare Earth Trihydrides and Graphite in Lithium Storage
|b Evidence of Hydrogen-Enhanced Lithiation
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|c 2018
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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
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|a Date Completed 01.08.2018
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|a Date Revised 01.10.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a The lithium storage capacity of graphite can be significantly promoted by rare earth trihydrides (REH3 , RE = Y, La, and Gd) through a synergetic mechanism. High reversible capacity of 720 mA h g-1 after 250 cycles is achieved in YH3 -graphite nanocomposite, far exceeding the total contribution from the individual components and the effect of ball milling. Comparative study on LaH3 -graphite and GdH3 -graphite composites suggests that the enhancement factor is 3.1-3.4 Li per active H in REH3 , almost independent of the RE metal, which is evident of a hydrogen-enhanced lithium storage mechanism. Theoretical calculation suggests that the active H from REH3 can enhance the Li+ binding to the graphene layer by introducing negatively charged sites, leading to energetically favorable lithiation up to a composition Li5 C16 H instead of LiC6 for conventional graphite anode
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|a Journal Article
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|a anodes
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|a graphite
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|a hydride
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|a lithium-ion batteries
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|a rare earths
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1 |
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|a Yang, Chengkai
|e verfasserin
|4 aut
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1 |
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|a Chang, Xinghua
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Teng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ye, Meng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lu, Jing
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhou, Henghui
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zheng, Jie
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Xingguo
|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 30(2018), 3 vom: 26. Jan.
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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|g volume:30
|g year:2018
|g number:3
|g day:26
|g month:01
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|u http://dx.doi.org/10.1002/adma.201704353
|3 Volltext
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