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231225s2022 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202107826
|2 doi
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|a pubmed24n1126.xml
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|a (DE-627)NLM337970777
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|a (NLM)35266208
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|a DE-627
|b ger
|c DE-627
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|a eng
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| 100 |
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|a Li, Fei
|e verfasserin
|4 aut
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|a Oxygen Vacancy-Mediated Growth of Amorphous Discharge Products toward an Ultrawide Band Light-Assisted Li-O2 Batteries
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|c 2022
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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 10.03.2022
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2022 Wiley-VCH GmbH.
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|a Photoassisted electrochemical reaction is regarded as an effective approach to reduce the overpotential of lithium-oxygen (Li-O2 ) batteries. However, the achievement of both broadband absorption and long term battery cycling stability are still a formidable challenge. Herein, an oxygen vacancy-mediated fast kinetics for a photoassisted Li-O2 system is developed with a silver/bismuth molybdate (Ag/Bi2 MoO6 ) hybrid cathode. The cathode can offer both double advantages for light absorption covering UV to visible region and excellent electrochemical activity for O2 . Upon discharging, the photoexcited electrons from Ag nanoplate based on the localized surface plasmon resonance (LSPR) are injected into the oxygen vacancy in Bi2 MoO6 . The fast oxygen reaction kinetics generate the amorphous Li2 O2 , and the discharge plateau is improved to 3.05 V. Upon charging, the photoexcited holes are capable to decompose amorphous Li2 O2 promptly, yielding a very low charge plateau of 3.25 V. A first cycle round-trip efficiency is 93.8% and retention of 70% over 500 h, which is the longest cycle life ever reported in photoassisted Li-O2 batteries. This work offers a general and reliable strategy for boosting the electrochemical kinetics by tailoring the crystalline of Li2 O2 with wide-band light
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|a Journal Article
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|a Li-O2 batteries
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|a amorphous Li2O2
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|a kinetics
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|a oxygen vacancies
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4 |
|a ultrawide band
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|a Li, Ma-Lin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Huan-Feng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Xiao-Xue
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zheng, Li-Jun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Guan, De-Hui
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Chang, Li-Min
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Xu, Ji-Jing
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Yu
|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 34(2022), 10 vom: 02. März, Seite e2107826
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:34
|g year:2022
|g number:10
|g day:02
|g month:03
|g pages:e2107826
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|u http://dx.doi.org/10.1002/adma.202107826
|3 Volltext
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