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Title: Rechargeable Seawater Battery and Its Electrochemical Mechanism

Abstract

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 (∼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.

Authors:
 [1];  [2];  [1];  [2];  [1];  [1]
  1. Ulsan National Inst. of Science and Technology (UNIST), Ulsan (Korea)
  2. Argonne National Lab. (ANL), Argonne, IL (United States). Chemical Science and Engineering Division
Publication Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Laboratory Directed Research and Development (LDRD) Program; Ulsan National Institute of Science and Technology (UNIST); National Research Foundation of Korea (NRF); USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1337148
Alternate Identifier(s):
OSTI ID: 1401359
Grant/Contract Number:  
AC02-06CH11357; NRF-2014R1A1A2A16053515; NIPA-2013-H0301-13-1009; DE‐AC02–06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
ChemElectroChem
Additional Journal Information:
Journal Volume: 2; Journal Issue: 3; Journal ID: ISSN 2196-0216
Publisher:
ChemPubSoc Europe
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; electrochemistry; energy storage; green chemistry; seawater cathode material; sodium

Citation Formats

Kim, Jae-Kwang, Lee, Eungje, Kim, Hyojin, Johnson, Christopher, Cho, Jaephil, and Kim, Youngsik. Rechargeable Seawater Battery and Its Electrochemical Mechanism. United States: N. p., 2014. Web. doi:10.1002/celc.201402344.
Kim, Jae-Kwang, Lee, Eungje, Kim, Hyojin, Johnson, Christopher, Cho, Jaephil, & Kim, Youngsik. Rechargeable Seawater Battery and Its Electrochemical Mechanism. United States. https://doi.org/10.1002/celc.201402344
Kim, Jae-Kwang, Lee, Eungje, Kim, Hyojin, Johnson, Christopher, Cho, Jaephil, and Kim, Youngsik. Tue . "Rechargeable Seawater Battery and Its Electrochemical Mechanism". United States. https://doi.org/10.1002/celc.201402344. https://www.osti.gov/servlets/purl/1337148.
@article{osti_1337148,
title = {Rechargeable Seawater Battery and Its Electrochemical Mechanism},
author = {Kim, Jae-Kwang and Lee, Eungje and Kim, Hyojin and Johnson, Christopher and Cho, Jaephil and Kim, Youngsik},
abstractNote = {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 (∼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.},
doi = {10.1002/celc.201402344},
journal = {ChemElectroChem},
number = 3,
volume = 2,
place = {United States},
year = {Tue Nov 25 00:00:00 EST 2014},
month = {Tue Nov 25 00:00:00 EST 2014}
}

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Works referencing / citing this record:

Deterministic growth of a sodium metal anode on a pre-patterned current collector for highly rechargeable seawater batteries
journal, January 2019

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Advanced perspective on the synchronized bifunctional activities of P2-type materials to implement an interconnected voltage profile for seawater batteries
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Binary N,S-doped carbon nanospheres from bio-inspired artificial melanosomes: A route to efficient air electrodes for seawater batteries
journal, January 2018

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Lithium battery chemistries enabled by solid-state electrolytes
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Reliable seawater battery anode: controlled sodium nucleation via deactivation of the current collector surface
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Ultra-fast and stable extraction of Li metal from seawater
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