NDLI: A novel high energy density flexible galvanic cell

Content Provider	Royal Society of Chemistry (RSC)
Author	Lowy, Daniel A. Dornajafi, Mahsa Ngu, Yves Proctor, Robert B. Krupsaw, Benjamin J. Dilli, Zeynep Peckerar, Martin Goldsman, Neil
Copyright Year	2011
Abstract	Ultrathin galvanic cells, which can comply with a variety of form factors and electronic system packages, are of technological importance, as they show promise for flexible electronic systems. Here we describe a high energy density flexible galvanic cell, which is non-toxic and environmentally friendly. It operates with a zinc anode and hydrated ruthenium(IV) oxide cathode, where RuO2·nH2O nanoparticles are utilized in amounts that are not cost-prohibitive. As the battery utilizes aqueous electrolytes, it is safe in operation, which enables its use in a number of settings and surroundings. It can be optimized for volume manufacture at low cost. Given that they function at much lower cell voltage than Li-ion batteries do, Zn–RuO2·nH2O cells can be recharged remotely, at a conveniently low voltage, by harvesting, for example, radio-frequency (RF) energy or microwaves. As an additional asset, Zn–RuO2·nH2O electrodes enable battery-supercapacitor hybrid power sources. At present, this cell demonstrates a specific charge capacity of 84.4 mAh per cm2 of projected electrode area, which is, so far, the largest value reported for thin film cells. Also, its cycle life of up to 400 charge–discharge cycles is very promising for use as a secondary battery.
Starting Page	1807
Ending Page	1812
Page Count	6
File Format	HTM / HTML PDF
ISSN	17545692
Volume Number	4
Issue Number	5
Journal	Energy & Environmental Science
DOI	10.1039/c1ee01075a
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Electronics Energy density Galvanic cell Zinc Anode Ruthenium(IV) oxide Cathode Electric charge Ampere-hour Electrode
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Pollution Renewable Energy, Sustainability and the Environment Nuclear Energy and Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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