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Title: Effect of Componential Proportion in Bimetallic Electrocatalysts on the Aprotic Lithium-Oxygen Battery Performance

Rechargeable lithium-oxygen (Li-O 2) batteries are one of the most promising technologies for next-generation energy storage, which is also a critical part of the future renewable energy portfolio; however, its commercialization is still hindered by several challenges. The high charge overpotential, in particular, not only causes problems by increasing the possibility of electrolyte decomposition but also induces a low round-trip efficiency and coulombic efficiency. Here, by choosing the right component proportion in Pt-Cu bimetallic electrocatalysts that optimize electrocatalytic activity of electrochemical reactions, especially of oxygen evolution reactions, a superior electrochemical behavior is demonstrated, with a low charge overpotential of 0.2 V and cycleability of 50 discharge/charge cycles before capacity fading. In conclusion, the optimized Pt-Cu bimetallic electrocatalysts significantly reduce the charge overpotential and furthermore enhance the efficiency, stability, and cycleability of an aprotic Li-O 2 battery.
Authors:
 [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ; ORCiD logo [1] ;  [2]
  1. Argonne National Lab. (ANL), Argonne, IL (United States)
  2. Argonne National Lab. (ANL), Argonne, IL (United States); Imam Abdulrahman Bin Faisal Univ., Dammam (Saudi Arabia); Stanford Univ., Stanford, CA (United States)
Publication Date:
Grant/Contract Number:
AC02-06CH11357; AC0206CH11357
Type:
Accepted Manuscript
Journal Name:
Advanced Energy Materials
Additional Journal Information:
Journal Volume: 8; Journal Issue: 20; Journal ID: ISSN 1614-6832
Publisher:
Wiley
Research Org:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; Li-O2 batteries; bimetallic Pt-Cu; electrocatalysts; oxygen evolution reaction
OSTI Identifier:
1466392
Alternate Identifier(s):
OSTI ID: 1433269

Luo, Xiangyi, Ge, Le, Ma, Lu, Kropf, Arthur J., Wen, Jianguo, Zuo, Xiaobing, Ren, Yang, Wu, Tianpin, Lu, Jun, and Amine, Khalil. Effect of Componential Proportion in Bimetallic Electrocatalysts on the Aprotic Lithium-Oxygen Battery Performance. United States: N. p., Web. doi:10.1002/aenm.201703230.
Luo, Xiangyi, Ge, Le, Ma, Lu, Kropf, Arthur J., Wen, Jianguo, Zuo, Xiaobing, Ren, Yang, Wu, Tianpin, Lu, Jun, & Amine, Khalil. Effect of Componential Proportion in Bimetallic Electrocatalysts on the Aprotic Lithium-Oxygen Battery Performance. United States. doi:10.1002/aenm.201703230.
Luo, Xiangyi, Ge, Le, Ma, Lu, Kropf, Arthur J., Wen, Jianguo, Zuo, Xiaobing, Ren, Yang, Wu, Tianpin, Lu, Jun, and Amine, Khalil. 2018. "Effect of Componential Proportion in Bimetallic Electrocatalysts on the Aprotic Lithium-Oxygen Battery Performance". United States. doi:10.1002/aenm.201703230.
@article{osti_1466392,
title = {Effect of Componential Proportion in Bimetallic Electrocatalysts on the Aprotic Lithium-Oxygen Battery Performance},
author = {Luo, Xiangyi and Ge, Le and Ma, Lu and Kropf, Arthur J. and Wen, Jianguo and Zuo, Xiaobing and Ren, Yang and Wu, Tianpin and Lu, Jun and Amine, Khalil},
abstractNote = {Rechargeable lithium-oxygen (Li-O2) batteries are one of the most promising technologies for next-generation energy storage, which is also a critical part of the future renewable energy portfolio; however, its commercialization is still hindered by several challenges. The high charge overpotential, in particular, not only causes problems by increasing the possibility of electrolyte decomposition but also induces a low round-trip efficiency and coulombic efficiency. Here, by choosing the right component proportion in Pt-Cu bimetallic electrocatalysts that optimize electrocatalytic activity of electrochemical reactions, especially of oxygen evolution reactions, a superior electrochemical behavior is demonstrated, with a low charge overpotential of 0.2 V and cycleability of 50 discharge/charge cycles before capacity fading. In conclusion, the optimized Pt-Cu bimetallic electrocatalysts significantly reduce the charge overpotential and furthermore enhance the efficiency, stability, and cycleability of an aprotic Li-O2 battery.},
doi = {10.1002/aenm.201703230},
journal = {Advanced Energy Materials},
number = 20,
volume = 8,
place = {United States},
year = {2018},
month = {4}
}

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