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Title: Reversible Redox Chemistry of Azo Compounds for Sodium-Ion Batteries

Sustainable sodium-ion batteries (SSIBs) using renewable organic electrodes are promising alternatives to lithium-ion batteries for the large-scale renewable energy storage. However, the lack of high-performance anode material impedes the development of SSIBs. Herein, we report a new type of organic anode material based on azo group for SSIBs. Azobenzene-4,4'-dicarboxylic acid sodium salt is used as a model to investigate the electrochemical behaviors and reaction mechanism of azo compound. It exhibits a reversible capacity of 170 mAhg -1 at 0.2C. When current density is increased to 20C, the reversible capacities of 98 mAhg -1 can be retained for 2000 cycles, demonstrating excellent cycling stability and high rate capability. The detailed characterizations reveal that azo group acts as an electrochemical active site to reversibly bond with Na +. The reversible redox chemistry between azo compound and Na ions offer opportunities for developing longcycle-life and high-rate SSIBs.
Authors:
 [1] ;  [2] ;  [3] ;  [1] ;  [1] ;  [1] ;  [4] ;  [2] ;  [2] ;  [5] ; ORCiD logo [1]
  1. Univ. of Maryland, College Park, MD (United States)
  2. Argonne National Lab. (ANL), Argonne, IL (United States)
  3. Univ. of Maryland, College Park, MD (United States); Huazhong Univ. of Science and Technology, Wuhan (China)
  4. Huazhong Univ. of Science and Technology, Wuhan (China)
  5. Argonne National Lab. (ANL), Argonne, IL (United States); Imam Abdulrahman Bin Faisal Univ., Dammam (Saudi Arabia)
Publication Date:
Grant/Contract Number:
AC02-06CH11357
Type:
Accepted Manuscript
Journal Name:
Angewandte Chemie (International Edition)
Additional Journal Information:
Journal Name: Angewandte Chemie (International Edition); Journal Volume: 57; Journal Issue: 11; Journal ID: ISSN 1433-7851
Publisher:
Wiley
Research Org:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org:
National Science Foundation (NSF); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
OSTI Identifier:
1426720

Luo, Chao, Xu, Gui-Liang, Ji, Xiao, Hou, Singyuk, Chen, Long, Wang, Fei, Jiang, Jianjun, Chen, Zonghai, Ren, Yang, Amine, Khalil, and Wang, Chunsheng. Reversible Redox Chemistry of Azo Compounds for Sodium-Ion Batteries. United States: N. p., Web. doi:10.1002/anie.201713417.
Luo, Chao, Xu, Gui-Liang, Ji, Xiao, Hou, Singyuk, Chen, Long, Wang, Fei, Jiang, Jianjun, Chen, Zonghai, Ren, Yang, Amine, Khalil, & Wang, Chunsheng. Reversible Redox Chemistry of Azo Compounds for Sodium-Ion Batteries. United States. doi:10.1002/anie.201713417.
Luo, Chao, Xu, Gui-Liang, Ji, Xiao, Hou, Singyuk, Chen, Long, Wang, Fei, Jiang, Jianjun, Chen, Zonghai, Ren, Yang, Amine, Khalil, and Wang, Chunsheng. 2018. "Reversible Redox Chemistry of Azo Compounds for Sodium-Ion Batteries". United States. doi:10.1002/anie.201713417.
@article{osti_1426720,
title = {Reversible Redox Chemistry of Azo Compounds for Sodium-Ion Batteries},
author = {Luo, Chao and Xu, Gui-Liang and Ji, Xiao and Hou, Singyuk and Chen, Long and Wang, Fei and Jiang, Jianjun and Chen, Zonghai and Ren, Yang and Amine, Khalil and Wang, Chunsheng},
abstractNote = {Sustainable sodium-ion batteries (SSIBs) using renewable organic electrodes are promising alternatives to lithium-ion batteries for the large-scale renewable energy storage. However, the lack of high-performance anode material impedes the development of SSIBs. Herein, we report a new type of organic anode material based on azo group for SSIBs. Azobenzene-4,4'-dicarboxylic acid sodium salt is used as a model to investigate the electrochemical behaviors and reaction mechanism of azo compound. It exhibits a reversible capacity of 170 mAhg-1 at 0.2C. When current density is increased to 20C, the reversible capacities of 98 mAhg-1 can be retained for 2000 cycles, demonstrating excellent cycling stability and high rate capability. The detailed characterizations reveal that azo group acts as an electrochemical active site to reversibly bond with Na+. The reversible redox chemistry between azo compound and Na ions offer opportunities for developing longcycle-life and high-rate SSIBs.},
doi = {10.1002/anie.201713417},
journal = {Angewandte Chemie (International Edition)},
number = 11,
volume = 57,
place = {United States},
year = {2018},
month = {1}
}