Electrolytes for high-voltage lithium batteries

Jia, Hao; Xu, Wu

doi:10.1016/j.trechm.2022.04.010

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Electrolytes for high-voltage lithium batteries

Jia, Hao·Xu, Wu

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Abstract

Here, in the aim of achieving higher energy density in lithium ion batteries (LIBs), both industry and academia show great interests in developing high-voltage LIBs (>4.3 V). However, increasing the charge cut-off voltage of the commercial LIBs causes severe degradations of both the positive electrode materials and the conventional LiPF 6 -oragnocarbonate electrolytes. Consequently, LIBs using conventional LiPF 6 -organocarbonate electrolytes suffer from a short cycle life when operated at higher charge cut-off voltages. In this review, the aging mechanisms associated with high-voltage LIBs will be analyzed and the countermeasures from the electrolyte design will be discussed.

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Jia, Hao, Xu, Wu. 2022-05-13. Electrolytes for high-voltage lithium batteries. https://doi.org/10.1016/j.trechm.2022.04.010

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