期刊
CHEMICAL ENGINEERING JOURNAL
卷 409, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2020.127943
关键词
Na metal anode; Sodium metal battery; Interphase engineering; Dendrite growth
资金
- National Natural Science Foundation of China [51722210, 51972285, U1802254, 21902144, 52071295, 52002352]
- Natural Science Foundation of Zhejiang Province [LY17E020010, LD18E020003]
Recent research has focused on the interphase engineering chemistries of sodium metal anodes in batteries, highlighting advancements in addressing issues such as undesired dendrite growth and unstable solid electrolyte interphase. Understanding the critical role of a healthy SEI formed on the surface of sodium metal and implementing strategies to construct stable interphases can enhance the electrochemical stability of the anode.
Sodium (Na) metal is not only the frequently used counter electrode in half-cell evaluation for Na storage materials, but also the essential anode for emerging room-temperature Na metal batteries (SMBs) in various types such as Na-sulfur, Na-oxygen, and Na-carbon dioxides batteries. Recent research into the Na metal employed in batteries has placed a spotlight on enhancing electrochemical stability of Na metal anode by addressing the problems of undesired dendrite growth and instable solid electrolyte interphase (SEI). Especially, the latter is recognized to be more responsible for performance failure in Na metal anode. Here, this review is focused to summarize the recent advancement of the interphase engineering chemistries of Na metal anode. The main origins of performance failure regarding interphase chemistries are comparatively described in detail, emphasizing that health SEI formed on Na-metal surface has a decisive role in anodic electrochemical behaviors. Subsequently, the representative strategies involved with constructing stable interphase are highlighted including electrolyte modulations, artificial coating and conductive matrix. Finally, future prospects into interphase chemistries of Na metal anode are proposed in the last section. This review will provide a clear figure of the state-of-art status research and the development trend of Na metal anode.
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