Electrolyte design implications of ion-pairing in low-temperature Li metal batteries

Authors: John Holoubek, Kangwoon Kim, Yijie Yin, Zhaohui Wu, Haodong Liu, Mingqian Li, Amanda Chen, Hongpeng Gao, Guorui Cai, Tod A. Pascal, Ping Liu, Zheng Chen

Published: 2022-03-07

DOI: 10.1039/d1ee03422g

Source: Full article

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Abstract

The reversibility of Li metal batteries suffers beneath 0 °C due to a heightened charge-transfer barrier. Herein, the introduction of ion-pairs within the electrolyte is shown to improve this behavior, enabling hundreds of cycles down to −40 °C.