Metal–CO2 Batteries on the Road: CO2 from Contamination Gas to Energy Source
- 20 January 2017
- journal article
- review article
- Published by Wiley in Advanced Materials
- Vol. 29 (15)
- https://doi.org/10.1002/adma.201605891
Abstract
Rechargeable nonaqueous metal–air batteries attract much attention for their high theoretical energy density, especially in the last decade. However, most reported metal–air batteries are actually operated in a pure O2 atmosphere, while CO2 and moisture in ambient air can significantly impact the electrochemical performance of metal–O2 batteries. In the study of CO2 contamination on metal–O2 batteries, it has been gradually found that CO2 can be utilized as the reactant gas alone; namely, metal–CO2 batteries can work. On the other hand, investigations on CO2 fixation are in focus due to the potential threat of CO2 on global climate change, especially for its steadily increasing concentration in the atmosphere. The exploitation of CO2 in energy storage systems represents an alternative approach towards clean recycling and utilization of CO2. Here, the aim is to provide a timely summary of recent achievements in metal–CO2 batteries, and inspire new ideas for new energy storage systems. Moreover, critical issues associated with reaction mechanisms and potential directions for future studies are discussed.Keywords
Funding Information
- National Natural Science Foundation of China (21473094, 21421001)
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