BROWSE

Related Researcher

Author's Photo

Kim, Youngsik
YK Research
Research Interests
  • Ionic conducting ceramic electrolyte membranes, energy conversion and storage materials and devices

ITEM VIEW & DOWNLOAD

Energy efficient Na-aqueous-catholyte redox flow battery

Cited 0 times inthomson ciCited 0 times inthomson ci
Title
Energy efficient Na-aqueous-catholyte redox flow battery
Author
Senthilkumar, S.T.Han, JinhyupPark, JeongsunMin Hwang, SooJeon, DonghoonKim, Youngsik
Issue Date
2018-05
Publisher
Elsevier B.V.
Citation
ENERGY STORAGE MATERIALS, v.12, pp.324 - 330
Abstract
Redox flow battery (RFB) technologies have become play a significant role in the future for the storage of electrical energy produced from intermitted renewable energies such as solar, wind, and hydroelectric powers. Although the development of high-energy density RFB remains a challenging. Herein, we report the Na-aqueous-catholyte RFB (NaAqRFB) towards high-density electrical energy storage. Na-metal anode offers a high energy density and the use of an aqueous flowing catholyte decouples the energy and power. NASICON (Na3Zr2Si2PO12) is employed as a solid electrolyte in the NaAqRFB to separate the Na anode and a flowable aqueous catholyte. The constructed prototype NaAqRFB operates using a sodium-hexacyanoferrate solution as the aqueous catholyte with no added supporting salt/electrolyte, and yielded an average cell potential of ∼ 3.06 V (vs. Na/Na+), and an energy density of 54.16 Wh L−1 (based on the volume of catholyte) with high energy efficiency (∼ 92%, over 50 cycles), outperforming conventional RFB. The present work offers a new route for developing high-energy-density redox flow batteries.
URI
https://scholarworks.unist.ac.kr/handle/201301/30431
URL
https://www.sciencedirect.com/science/article/pii/S2405829717303884?via%3Dihub
DOI
10.1016/j.ensm.2017.10.006
ISSN
2405-8297
Appears in Collections:
ECHE_Journal Papers
Files in This Item:
There are no files associated with this item.

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qrcode

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU