气候变化领域集成服务门户(CCPortal): Photo-rechargeable zinc-ion batteries

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DOI	10.1039/d0ee01392g
	Photo-rechargeable zinc-ion batteries
	Boruah B.D.; Mathieson A.; Wen B.; Feldmann S.; Dose W.M.; De Volder M.
发表日期	2020
ISSN	1754-5692
起始页码	2414
结束页码	2421
卷号	13 期号:8
英文摘要	Batteries that can be directly recharged by light would offer a new approach to balancing the unpredictable energy surpluses and deficits associated with solar energy. Here, we present a new aqueous zinc-ion battery (photo-ZIB) that can directly harvest sunlight to recharge without the need for external solar cells. The light charging process is driven by photo-active cathodes consisting of a mixture of vanadium oxide (V2O5) nanofibers, poly(3-hexylthiophene-2,5-diyl) and reduced graphene oxide, which provide the desired charge separation and storage mechanism. This process is studied using photodetectors, transient absorption spectroscopy and electrochemical analysis in dark and light conditions. The V2O5 cathodes have gravimetric capacities of ~190 mA h g-1 and ~370 mA h g-1 in dark and illuminated conditions respectively and photo-conversion efficiencies of ~1.2%. Finally, we demonstrate a fully functional photo-ZIB with a ~64 cm2 optical window in pouch cell format. © 2020 The Royal Society of Chemistry.
语种	英语
scopus关键词	Absorption spectroscopy; Cathodes; Graphene; Solar cells; Solar energy; Vanadium pentoxide; Zinc; Charge separations; Charging process; Electrochemical analysis; Gravimetric capacity; Light conditions; Poly(3-hexylthiophene-2 ,5-diyl); Storage mechanism; Transient absorption spectroscopies; Secondary batteries; energy efficiency; energy storage; ion exchange; nanoparticle; photochemistry; solar power; vanadium; zinc
来源期刊	Energy and Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/162385
作者单位	Institute for Manufacturing, Department of Engineering, University of Cambridge, Cambridge, CB3 0FS, United Kingdom; Cambridge Graphene Centre, University of Cambridge, Cambridge, CB3 0FA, United Kingdom; Cavendish Laboratory, University of Cambridge, JJ Thomson Ave, Cambridge, CB3 0HE, United Kingdom; Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, United Kingdom
推荐引用方式 GB/T 7714	Boruah B.D.,Mathieson A.,Wen B.,et al. Photo-rechargeable zinc-ion batteries[J],2020,13(8).
APA	Boruah B.D.,Mathieson A.,Wen B.,Feldmann S.,Dose W.M.,&De Volder M..(2020).Photo-rechargeable zinc-ion batteries.Energy and Environmental Science,13(8).
MLA	Boruah B.D.,et al."Photo-rechargeable zinc-ion batteries".Energy and Environmental Science 13.8(2020).