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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202103881
|2 doi
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|a pubmed24n1099.xml
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|a (DE-627)NLM329799177
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|a (NLM)34436798
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|a DE-627
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|a eng
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| 100 |
1 |
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|a Shen, Yinlin
|e verfasserin
|4 aut
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|a A Pyrite Iron Disulfide Cathode with a Copper Current Collector for High-Energy Reversible Magnesium-Ion Storage
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|c 2021
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 13.10.2021
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2021 Wiley-VCH GmbH.
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|a Owing to its low cost, high theoretical capacity, and environmentally friendly characteristics, pyrite FeS2 demonstrates promise as a cathode material for high-energy metal-anode-based rechargeable batteries. When it is used in a rechargeable magnesium battery (RMB), the electrode couple exhibits an extremely low theoretical volume change upon full discharge. However, its electrochemical Mg-ion storage is considerably hindered by slow reaction kinetics. In this study, a high-performance FeS2 cathode for RMBs using a copper current collector is reported, which is involved in cathode reactions via a reversible redox process between copper and cuprous sulfide. This phase transformation with the formation of copper nanowires during discharge activates the redox reactions of FeS2 via a two-step and four-electron Mg-ion transfer that dominates the cathode reactions. As a result, the as-prepared FeS2 nanomaterial cathode delivers a significantly enhanced reversible capacity of 679 mAh g-1 at 50 mA g-1 . The corresponding energy density of 714 Wh kg-1 is superior to those of all previously reported metal chalcogenide cathodes in RMBs or hybrid batteries using a Mg metal anode. Notably, the as-assembled FeS2 -Mg battery can operate over 1000 cycles with a good capacity retention at 400 mA g-1
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|a Journal Article
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|a cathode materials
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|a copper current collectors
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|a iron disulfide
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|a magnesium-ion storage
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| 650 |
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4 |
|a rechargeable magnesium batteries
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|a Zhang, Qinghua
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Yujia
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Gu, Lin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhao, Xiangyu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Shen, Xiaodong
|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 33(2021), 41 vom: 11. Okt., Seite e2103881
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:33
|g year:2021
|g number:41
|g day:11
|g month:10
|g pages:e2103881
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|u http://dx.doi.org/10.1002/adma.202103881
|3 Volltext
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