TY - JOUR
T1 - Effect of Componential Proportion in Bimetallic Electrocatalysts on the Aprotic Lithium-Oxygen Battery Performance
AU - Luo, Xiangyi
AU - Ge, Le
AU - Ma, Lu
AU - Kropf, Arthur J.
AU - Wen, Jianguo
AU - Zuo, Xiaobing
AU - Ren, Yang
AU - Wu, Tianpin
AU - Lu, Jun
AU - Amine, Khalil
N1 - Publisher Copyright:
© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
PY - 2018/7/16
Y1 - 2018/7/16
N2 - 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. 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.
AB - 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. 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.
KW - Li-O batteries
KW - bimetallic Pt-Cu
KW - electrocatalysts
KW - oxygen evolution reaction
UR - http://www.scopus.com/inward/record.url?scp=85045390701&partnerID=8YFLogxK
U2 - 10.1002/aenm.201703230
DO - 10.1002/aenm.201703230
M3 - Article
AN - SCOPUS:85045390701
SN - 1614-6832
VL - 8
JO - Advanced Energy Materials
JF - Advanced Energy Materials
IS - 20
M1 - 1703230
ER -
