气候变化领域集成服务门户(CCPortal): Rechargeable ultrahigh-capacity tellurium-aluminum batteries

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DOI	10.1039/c9ee00862d
	Rechargeable ultrahigh-capacity tellurium-aluminum batteries
	Zhang X.; Jiao S.; Tu J.; Song W.-L.; Xiao X.; Li S.; Wang M.; Lei H.; Tian D.; Chen H.; Fang D.
发表日期	2019
ISSN	17545692
起始页码	1918
结束页码	1927
卷号	12 期号:6
英文摘要	For exploring promising energy storage devices beyond lithium ion batteries, aluminum ion batteries (AIBs) are desirable cells with high energy-to-price ratios because of abundant natural resources, the higher energy density of aluminum and elimination of unexpected safety risks. Nevertheless, an ideal rechargeable AIB configuration with ultrahigh capacity is still fundamentally pursued. For fundamentally promoting the most promising chalcogen or chalcogenide-based AIB positive electrode materials, here rechargeable tellurium (Te) nanowire positive electrodes are demonstrated to construct novel tellurium-aluminum batteries. The cell configuration allows Te nanowires for delivering an ultrahigh discharge capacity ∼1026 mA h g-1 (with a specific current of 0.5 A g-1) along with an initial 1.4 V discharge voltage, competitive with the record-setting energy density of the documented AIBs. For essentially tackling the dramatic capacity loss in tellurium positive electrodes, the mechanism of impacting the rechargeable ability is linked to the production of soluble tellurium chloroaluminate compounds upon both chemical dissolution and electrochemical conversion processes. As a consequence, the cell configuration is proved to substantially suppress the unexpected shuttle effects induced by soluble tellurium chloroaluminate compounds via employing reduced graphene oxide to support the tellurium positive electrodes as well as utilizing functionalized carbon nanotube membranes to modify the separators. The implication of the results suggests a nice plateau for massively promoting the rechargeable ability of AIBs, advancing remarkable routes for achieving ultrahigh capacity and energy density. © 2019 The Royal Society of Chemistry.
英文关键词	Aluminum; Carbon nanotubes; Electric discharges; Electrochemical electrodes; Graphene; Lithium-ion batteries; Nanowires; Yarn; Chemical dissolution; Discharge capacities; Electrochemical conversion; Functionalized carbon nanotubes; Higher energy density; Positive electrode materials; Positive electrodes; Reduced graphene oxides; Tellurium compounds; aluminum; electrode; energy storage; fuel cell; tellurium
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/189894
作者单位	State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing, 100083, China; Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing, 100081, China
推荐引用方式 GB/T 7714	Zhang X.,Jiao S.,Tu J.,et al. Rechargeable ultrahigh-capacity tellurium-aluminum batteries[J],2019,12(6).
APA	Zhang X..,Jiao S..,Tu J..,Song W.-L..,Xiao X..,...&Fang D..(2019).Rechargeable ultrahigh-capacity tellurium-aluminum batteries.Energy & Environmental Science,12(6).
MLA	Zhang X.,et al."Rechargeable ultrahigh-capacity tellurium-aluminum batteries".Energy & Environmental Science 12.6(2019).