Electrolyte design for inorganic-rich solid-electrolyte interfaces to enable low-temperature Li metal batteries

Rui Yu; Zhuo Li; Xinxin Zhang; Xin Guo

doi:10.1039/d2cc03096a

Electrolyte design for inorganic-rich solid-electrolyte interfaces to enable low-temperature Li metal batteries

Chem Commun (Camb). 2022 Aug 9;58(64):8994-8997. doi: 10.1039/d2cc03096a.

Authors

Rui Yu¹, Zhuo Li¹, Xinxin Zhang¹, Xin Guo¹

Affiliation

¹ State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China. xguo@hust.edu.cn.

PMID: 35861578
DOI: 10.1039/d2cc03096a

Abstract

Ether-based electrolyte promotes robust LiF/LiN_xO_y-rich solid-electrolyte interphases (SEIs) with favorable interfacial conduction and accommodation, thus decreasing operation temperatures of Li metal batteries to -40 °C. At -30 °C, the Li‖Ni_0.85Co_0.05Al_0.1O₂ battery achieves >80% retention (130 mA h g^-1) of its room-temperature capacity, and presents stable cycling over 100 cycles.