A high energy and power density hybrid supercapacitor based on an advanced carbon-coated Li4Ti5O12 electrode
- Authors
- Jung, Hun-Gi; Venugopal, Nulu; Scrosati, Bruno; Sun, Yang Kook
- Issue Date
- Jan-2013
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Hybrid supercapacitor; Li4Ti5O12; Microsphere; High energy density; High power density
- Citation
- JOURNAL OF POWER SOURCES, v.221, pp.266 - 271
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF POWER SOURCES
- Volume
- 221
- Start Page
- 266
- End Page
- 271
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/26796
- DOI
- 10.1016/j.jpowsour.2012.08.039
- ISSN
- 0378-7753
- Abstract
- We describe in this work the synthesis and the characterization of homogeneous, carbon-coated lithium titanium oxide micro spheres and demonstrate their use for the fabrication of an active negative electrode combined with a high surface area, activated carbon positive electrode to form an advanced non aqueous, hybrid supercapacitor. We show that this activated carbon/carbon coated-Li4Ti5O12 device retains 95% of its initial capacity after 1000 cycles with a maximum volumetric energy and power density of 57 Wh L-1 and 2600 W L-1, respectively. Due to this unique performance, the hybrid supercapacitor developed in this work is expected to be a very promising energy storage device suitable for applications that require high energy levels and fast charge and discharge cycles, such as those requested in the EV sector.
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