NDLI: A reversible lithium–CO<sub>2</sub> battery with Ru nanoparticles as a cathode catalyst

Content Provider	Royal Society of Chemistry (RSC)
Author	Qiao, Yu Cheng, Zhu Liu, Yijie He, Ping Zhou, Haoshen Yang, Sixie Zhu, Jun-jie
Copyright Year	2017
Abstract	Li–CO2 batteries have attracted wide attention owing to their high energy density and ability to utilize carbon dioxide. However, current Li–CO2 batteries still suffer from several unresolved problems such as low coulombic efficiency and high charge potential, and hence much work is still required to optimize the electrochemical performance of Li–CO2 batteries. In this work, Ru nanoparticles have been deposited on Super P carbon using a solvothermal method and the resulting material (Ru@Super P) has been employed as a cathode in Li–CO2 batteries. The Li–CO2 battery with Ru@Super P as the cathode exhibits significantly reduced charge potential and can be operated for 80 cycles with a fixed capacity of 1000 mA h g−1 at 100 mA g−1, which is by far the best cycling stability among the reported Li–CO2 batteries. We found that Ru possesses a selective catalytic activity in promoting the reaction between Li2CO3 and carbon during charge. This characteristic of Ru helps to avoid electrolyte decomposition and improve the electrochemical performance of Li–CO2 batteries.
Starting Page	972
Ending Page	978
Page Count	7
File Format	HTM / HTML PDF
ISSN	17545692
Volume Number	10
Issue Number	4
Journal	Energy & Environmental Science
DOI	10.1039/c6ee03770d
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Li Ru Energy density Carbon dioxide Electrochemistry Carbon Cathode Lithium carbonate Electrolyte
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Pollution Renewable Energy, Sustainability and the Environment Nuclear Energy and Engineering

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