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Title: 1.3 V superwide potential window sponsored by Na-Mn-O plates as cathodes towards aqueous rechargeable sodium-ion batteries

Abstract

Aqueous rechargeable sodium-ion batteries (ARSIBs) are highly desirable for the large-scale energy storage due to their inherent high safety and low-cost. Na-Mn-O electrode material has been considered as a promising cathode, yet the redox potential window is still not fully explored and utilized in aqueous rechargeable sodium-ion batteries. Herein, a chemical bonded Na 0.44MnO 2 (NMO) plates are successfully synthesized via a polyvinylpyrrolidone-assisted sol-gel route followed by annealing process. The possibility of utilizing a wider potential window ranging between –0.3 V and 1.0 V vs. Ag/AgCl in mild aqueous electrolyte has been thus demonstrated by using NMO plates as cathodes for the first time. As a result, the as-synthesized NMO plates can deliver a highest initial discharge capacity of 77.2 mA h g –1 at a current density of 100 mA g –1, compared with previous Na-Mn-O reports in mild aqueous electrolyte in ARSIBs. Even at a high rate of 500 mA g –1, it still maintains a large capacity of 35 mA h g –1 after 1000 cycles, demonstrating its superior cycling stability. In addition, ex situ SEM and TEM-EDX results reveal that there is a newly formed sheet-like layer Na-birnessite Na 0.55Mn 2O 4 · 1.5H 2O onmore » the surface of NMO cathodes, which can provide extra ion channel for sodium ions and stabilize the electrode from pulverization, resulting in improved cycling stability. Furthermore, this study provides a broad implication for developing low-cost, high performance cathode materials to broaden the applied potential window towards high performance ARSIBs.« less

Authors:
 [1];  [1];  [2];  [1];  [1];  [1];  [3];  [1];  [4];  [5]
  1. Nanyang Technological Univ. (Singapore)
  2. National Univ. of Singapore (Singapore)
  3. Energy Research Institute at Nanyang Technological Univ. (Singapore)
  4. Brookhaven National Lab. (BNL), Upton, NY (United States)
  5. Nanyang Technological Univ. (Singapore); Energy Research Institute at Nanyang Technological Univ. (Singapore)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1525401
Alternate Identifier(s):
OSTI ID: 1637092
Report Number(s):
BNL-211764-2019-JAAM
Journal ID: ISSN 1385-8947
Grant/Contract Number:  
SC0012704
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Chemical Engineering Journal
Additional Journal Information:
Journal Volume: 370; Journal Issue: C; Journal ID: ISSN 1385-8947
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Aqueous rechargeable sodium-ion batteries; Widened potential window; Na0.44MnO2; Cathode material

Citation Formats

Chua, Rodney, Cai, Yi, Kou, Zong Kui, Satish, Rohit, Ren, Hao, Chan, Jun Jie, Zhang, Liping, Morris, Samuel A., Bai, Jianming, and Srinivasan, Madhavi. 1.3 V superwide potential window sponsored by Na-Mn-O plates as cathodes towards aqueous rechargeable sodium-ion batteries. United States: N. p., 2019. Web. doi:10.1016/j.cej.2019.03.251.
Chua, Rodney, Cai, Yi, Kou, Zong Kui, Satish, Rohit, Ren, Hao, Chan, Jun Jie, Zhang, Liping, Morris, Samuel A., Bai, Jianming, & Srinivasan, Madhavi. 1.3 V superwide potential window sponsored by Na-Mn-O plates as cathodes towards aqueous rechargeable sodium-ion batteries. United States. doi:10.1016/j.cej.2019.03.251.
Chua, Rodney, Cai, Yi, Kou, Zong Kui, Satish, Rohit, Ren, Hao, Chan, Jun Jie, Zhang, Liping, Morris, Samuel A., Bai, Jianming, and Srinivasan, Madhavi. Wed . "1.3 V superwide potential window sponsored by Na-Mn-O plates as cathodes towards aqueous rechargeable sodium-ion batteries". United States. doi:10.1016/j.cej.2019.03.251. https://www.osti.gov/servlets/purl/1525401.
@article{osti_1525401,
title = {1.3 V superwide potential window sponsored by Na-Mn-O plates as cathodes towards aqueous rechargeable sodium-ion batteries},
author = {Chua, Rodney and Cai, Yi and Kou, Zong Kui and Satish, Rohit and Ren, Hao and Chan, Jun Jie and Zhang, Liping and Morris, Samuel A. and Bai, Jianming and Srinivasan, Madhavi},
abstractNote = {Aqueous rechargeable sodium-ion batteries (ARSIBs) are highly desirable for the large-scale energy storage due to their inherent high safety and low-cost. Na-Mn-O electrode material has been considered as a promising cathode, yet the redox potential window is still not fully explored and utilized in aqueous rechargeable sodium-ion batteries. Herein, a chemical bonded Na0.44MnO2 (NMO) plates are successfully synthesized via a polyvinylpyrrolidone-assisted sol-gel route followed by annealing process. The possibility of utilizing a wider potential window ranging between –0.3 V and 1.0 V vs. Ag/AgCl in mild aqueous electrolyte has been thus demonstrated by using NMO plates as cathodes for the first time. As a result, the as-synthesized NMO plates can deliver a highest initial discharge capacity of 77.2 mA h g–1 at a current density of 100 mA g–1, compared with previous Na-Mn-O reports in mild aqueous electrolyte in ARSIBs. Even at a high rate of 500 mA g–1, it still maintains a large capacity of 35 mA h g–1 after 1000 cycles, demonstrating its superior cycling stability. In addition, ex situ SEM and TEM-EDX results reveal that there is a newly formed sheet-like layer Na-birnessite Na0.55Mn2O4 · 1.5H2O on the surface of NMO cathodes, which can provide extra ion channel for sodium ions and stabilize the electrode from pulverization, resulting in improved cycling stability. Furthermore, this study provides a broad implication for developing low-cost, high performance cathode materials to broaden the applied potential window towards high performance ARSIBs.},
doi = {10.1016/j.cej.2019.03.251},
journal = {Chemical Engineering Journal},
issn = {1385-8947},
number = C,
volume = 370,
place = {United States},
year = {2019},
month = {3}
}

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