@article{86ada50a92ab4d9db39586d702379b24,
title = "Deep-Eutectic-Solvent-Based Self-Healing Polymer Electrolyte for Safe and Long-Life Lithium-Metal Batteries",
abstract = "The deployment of high-energy-density lithium-metal batteries has been greatly impeded by Li dendrite growth and safety concerns originating from flammable liquid electrolytes. Herein, we report a stable quasi-solid-state Li metal battery with a deep eutectic solvent (DES)-based self-healing polymer (DSP) electrolyte. This electrolyte was fabricated in a facile manner by in situ copolymerization of 2-(3-(6-methyl-4-oxo-1,4-dihydropyrimidin-2-yl)ureido)ethyl methacrylate (UPyMA) and pentaerythritol tetraacrylate (PETEA) monomers in a DES-based electrolyte containing fluoroethylene carbonate (FEC) as an additive. The well-designed DSP electrolyte simultaneously possesses non-flammability, high ionic conductivity and electrochemical stability, and dendrite-free Li plating. When applied in Li metal batteries with a LiMn2O4 cathode, the DSP electrolyte effectively suppressed manganese dissolution from the cathode and enabled high-capacity and a long lifespan at room and elevated temperatures.",
keywords = "deep eutectic solvents, dendrite growth, lithium-metal batteries, polymer electrolytes, self-healing",
author = "Pauline Jaumaux and Qi Liu and Dong Zhou and Xiaofu Xu and Tianyi Wang and Yizhou Wang and Feiyu Kang and Baohua Li and Guoxiu Wang",
note = "Funding Information: This research was supported by Australian Rail Manufactory CRC projects (RMCRC: R1.1.1 and R1.1.2) and the Australian Research Council (ARC) Discovery Project (DP170100436; DP200101249). We also acknowledge support by the National Nature Science Foundation of China (No. 51872157), Shenzhen Key Laboratory (ZD SYS201707271615073), and the Shenzhen Technical Plan Project (Nos. JCYJ20170412170911187 and JCYJ20170817161753629). We are grateful for assistance with the viscosity measurements by Dr. Barry Liu at the University of Technology Sydney. Funding Information: This research was supported by Australian Rail Manufactory CRC projects (RMCRC: R1.1.1 and R1.1.2) and the Australian Research Council (ARC) Discovery Project (DP170100436; DP200101249). We also acknowledge support by the National Nature Science Foundation of China (No. 51872157), Shenzhen Key Laboratory (ZD SYS201707271615073), and the Shenzhen Technical Plan Project (Nos. JCYJ20170412170911187 and JCYJ20170817161753629). We are grateful for assistance with the viscosity measurements by Dr. Barry Liu at the University of Technology Sydney. Publisher Copyright: {\textcopyright} 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim",
year = "2020",
month = jun,
day = "2",
doi = "10.1002/anie.202001793",
language = "English (US)",
volume = "59",
pages = "9134--9142",
journal = "Angewandte Chemie - International Edition",
issn = "1433-7851",
publisher = "Wiley",
number = "23",
}