Journal
ADVANCED MATERIALS
Volume 32, Issue 27, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201903790
Keywords
anode protection; cathode catalyst; liquid-free electrolyte; metal-CO2 batteries; reaction mechanism
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Funding
- National Key Research and Development Program of China [2016YFB0100203]
- National Natural Science Foundation of China [21673116, 21633003, U1801251]
- PAPD of Jiangsu Higher Education Institutions
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Metal-CO2 batteries, especially Li-CO2 and Na-CO2 batteries, offer a novel and attractive strategy for CO2 capture as well as energy conversion and storage with high specific energy densities. However, some scientific issues and challenges existing restrict their practical applications. Here, recent progress of crucial reaction mechanisms on cathodes in Li-CO2 and Na-CO2 batteries are summarized. The detailed reaction pathways can be modified by operation conditions, electrolyte compositions, and catalysts. Besides, specific discussions from aspects of catalyst design, stability of electrolytes, and anode protection are presented. Perspectives of several innovative directions are also put forward. This review provides an intensive understanding of Li-CO2 and Na-CO2 batteries and gives a useful guideline for the practical development of metal-CO2 batteries and even metal-air batteries.
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