File Download

There are no files associated with this item.

  • Find it @ UNIST can give you direct access to the published full text of this article. (UNISTARs only)
Related Researcher

조재필

Cho, Jaephil
Nano Energy Storage Material Lab.
Read More

Views & Downloads

Detailed Information

Cited time in webofscience Cited time in scopus
Metadata Downloads

Rechargeable Seawater Battery and Its Electrochemical Mechanism

Author(s)
Kim, Jae-KwangLee, EungjeKim, HyojinJohnson, ChristopherCho, JaephilKim, Youngsik
Issued Date
2015-03
DOI
10.1002/celc.201402344
URI
https://scholarworks.unist.ac.kr/handle/201301/11811
Fulltext
http://onlinelibrary.wiley.com/doi/10.1002/celc.201402344/abstract
Citation
CHEMELECTROCHEM, v.2, no.3, pp.328 - 332
Abstract
Herein, we explore the electrochemical mechanism of a novel rechargeable seawater battery system that uses seawater as the cathode material. Sodium is harvested from seawater while charging the battery, and the harvested sodium is discharged with oxygen dissolved in the seawater, functioning as oxidants to produce electricity. The seawater provides both anode (Na metal) and cathode (O-2) materials for the proposed battery. Based on the discharge voltage (-2.9 V) with participation of O-2 and the charge voltage (similar to 4.1 V) with Cl-2 evolution during the first cycle, a voltage efficiency of about 73% is obtained. If the seawater battery is constructed using hard carbon as the anode and a Na super ion conductor as the solid electrolyte, a strong cycle performance of 84% is observed after 40 cycles
Publisher
WILEY-V C H VERLAG GMBH
ISSN
2196-0216
Keyword (Author)
electrochemistryenergy storagegreen chemistryseawater cathode materialsodium
Keyword
ION BATTERIESELECTROLYTESODIUMREACTIVITYINSERTIONLITHIUMNASICONWATER

qrcode

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