A 3.5 V Lithium-Iodine Hybrid Redox Battery with Vertically Aligned Carbon Nanotube Current Collector
SCIE
SCOPUS
- Title
- A 3.5 V Lithium-Iodine Hybrid Redox Battery with Vertically Aligned Carbon Nanotube Current Collector
- Authors
- Zhao, Y; Hong, M; Mercier, NB; Yu, GH; Choi, HC; Byon, HR
- Date Issued
- 2014-02
- Publisher
- AMER CHEMICAL SOC
- Abstract
- A lithium-iodine (Li-I-2) cell using the triiodide/iodide (I-3(-)/I-) rcdox couple in an aqueous cathode has superior gravimetric and volumetric energy densities (similar to 330 W h kg(-1) and similar to 650 W h L-1, respectively, from saturated I-2 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 I-3(-)/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 I-3(-)/I- redox reaction, which can shorten the diffusion length of the redox couple and provide rapid electron transport. These endeavors allow the Li-I-2 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.
- Keywords
- Carbon nanotube; current collector; iodine; aqueous cathode; redox batteries; SCALE ENERGY-STORAGE; FLOW BATTERY; ION BATTERIES; AQUEOUS CATHODE; PERFORMANCE; ELECTROLYTE; CHALLENGES; SYSTEMS; COUPLES; MEDIA
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/13938
- DOI
- 10.1021/NL404784D
- ISSN
- 1530-6984
- Article Type
- Article
- Citation
- NANO LETTERS, vol. 14, no. 2, page. 1085 - 1092, 2014-02
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