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

Xiangyi Luo; Le Ge; Lu Ma; Arthur J. Kropf; Jianguo Wen; Xiaobing Zuo; Yang Ren; Tianpin Wu; Jun Lu; Khalil Amine

doi:10.1002/aenm.201703230

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

Xiangyi Luo, Le Ge, Lu Ma, Arthur J. Kropf, Jianguo Wen, Xiaobing Zuo, Yang Ren, Tianpin Wu, Jun Lu^*, Khalil Amine

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

32 Citations (Scopus)

Abstract

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.

Original language	English
Article number	1703230
Journal	Advanced Energy Materials
Volume	8
Issue number	20
DOIs	https://doi.org/10.1002/aenm.201703230
Publication status	Published - 16 Jul 2018
Externally published	Yes

Keywords

Li-O batteries
bimetallic Pt-Cu
electrocatalysts
oxygen evolution reaction

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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Luo, X., Ge, L., Ma, L., Kropf, A. J., Wen, J., Zuo, X., Ren, Y., Wu, T., Lu, J., & Amine, K. (2018). Effect of Componential Proportion in Bimetallic Electrocatalysts on the Aprotic Lithium-Oxygen Battery Performance. Advanced Energy Materials, 8(20), Article 1703230. https://doi.org/10.1002/aenm.201703230

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title = "Effect of Componential Proportion in Bimetallic Electrocatalysts on the Aprotic Lithium-Oxygen Battery Performance",

abstract = "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.",

keywords = "Li-O batteries, bimetallic Pt-Cu, electrocatalysts, oxygen evolution reaction",

author = "Xiangyi Luo and Le Ge and Lu Ma and Kropf, \{Arthur J.\} and Jianguo Wen and Xiaobing Zuo and Yang Ren and Tianpin Wu and Jun Lu and Khalil Amine",

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year = "2018",

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doi = "10.1002/aenm.201703230",

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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

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

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JO - Advanced Energy Materials

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ER -

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

Abstract

Keywords

UN SDGs

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