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원자제어 저차원 전자계 연구단
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A 3.5 V Lithium-Iodine Hybrid Redox Battery with Vertically Aligned Carbon Nanotube Current Collector

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Title
A 3.5 V Lithium-Iodine Hybrid Redox Battery with Vertically Aligned Carbon Nanotube Current Collector
Author(s)
Zhao, Yu; Misun Hong; Mercier, Nadège Bonnet; Yu, Guihua; Hee Cheul Choi; Byon, Hye Ryung
Publication Date
2014-02
Journal
NANO LETTERS, v.14, no.2, pp.1085 - 1092
Publisher
AMER CHEMICAL SOC
Abstract
A lithium−iodine (Li−I2) cell using the triiodide/iodide (I3−/I−) redox couple in an aqueous cathode has superior gravimetric and volumetric energy densities (∼ 330 W h kg−1 and ∼650 W h L−1, respectively, from saturated I2 in an aqueous cathode) to the reported aqueous Li-ion batteries and aqueous cathode-type batteries, which provides an opportunity to construct cost-effective and high-performance energy storage. To apply this I3 −/I− aqueous cathode for a portable and compact 3.5 V battery, unlike for grid-scale storage as general target of redox flow batteries, we use a three-dimensional and millimeter thick carbon nanotube current collector for the I3 −/I− redox reaction, which can shorten the diffusion length of the redox couple and provide rapid electron transport. These endeavors allow the Li−I2 battery to enlarge its specific capacity, cycling retention, and maintain a stable potential, thereby demonstrating a promising candidate for an environmentally benign and reusable portable battery.
URI
https://pr.ibs.re.kr/handle/8788114/1535
ISSN
1530-6984
Appears in Collections:
Center for Artificial Low Dimensional Electronic Systems(원자제어 저차원 전자계 연구단) > Journal Papers (저널논문)
Files in This Item:
9._Nano_Letter_14(2)_A_3.5_VLithium-Iodine_Hybrid_Redox_Battery_with_Vertic.pdfDownload

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