4.8 Review

Advances in electrolyte safety and stability of ion batteries under extreme conditions

期刊

NANO RESEARCH
卷 16, 期 2, 页码 2311-2324

出版社

TSINGHUA UNIV PRESS
DOI: 10.1007/s12274-022-4871-x

关键词

ion batteries; battery safety; polymer electrolyte; solid state electrolyte; ionic liquid electrolyte; aqueous electrolyte

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This review focuses on the safety and stability issues of ion batteries, highlighting the drawbacks of organic liquid electrolytes and summarizing effective solutions such as polymer electrolytes, solid-state electrolytes, ionic liquid electrolytes, and aqueous electrolytes. Additionally, future prospects for electrolytes are discussed, providing insights for the research and development of next-generation batteries.
Electric vehicles have been promoted worldwide due to fast-charge technology of ion batteries. However, ion batteries' capacity and cycle life severely decay under extreme conditions, which is mostly related to electrolyte conductivity drop and side reactions. This review highlights the safety and stability of ion batteries in terms of thermal stability, non-flammability, low-temperature, and so on, outlining the disadvantages of organic liquid electrolyte, and summarizing effective solutions of polymer electrolytes, solid-state electrolytes, ionic liquid electrolytes, and aqueous electrolytes for the batteries. Moreover, the outlook on the electrolytes is put forward, which is available for research and development of the next generation batteries.

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