@article{ref1,
title="Non-flammable electrolyte enables Li-metal batteries with aggressive cathode chemistries",
journal="Nature nanotechnology",
year="2018",
author="Fan, Xiulin and Chen, Long and Borodin, Oleg and Ji, Xiao and Chen, Ji and Hou, Singyuk and Deng, Tao and Zheng, Jing and Yang, Chongyin and Liou, Sz-Chian and Amine, Khalil and Xu, Kang and Wang, Chunsheng",
volume="13",
number="8",
pages="715-722",
abstract="Rechargeable Li-metal batteries using high-voltage cathodes can deliver the highest possible energy densities among all electrochemistries. However, the notorious reactivity of metallic lithium as well as the catalytic nature of high-voltage cathode materials largely prevents their practical application. Here, we report a non-flammable fluorinated electrolyte that supports the most aggressive and high-voltage cathodes in a Li-metal battery. Our battery shows high cycling stability, as evidenced by the efficiencies for Li-metal plating/stripping (99.2%) for a 5 V cathode LiCoPO<sub>4</sub> (~99.81%) and a Ni-rich LiNi<sub>0.8</sub>Mn<sub>0.1</sub>Co<sub>0.1</sub>O<sub>2</sub> cathode (~99.93%). At a loading of 2.0 mAh cm<sup>-2</sup>, our full cells retain ~93% of their original capacities after 1,000 cycles. Surface analyses and quantum chemistry calculations show that stabilization of these aggressive chemistries at extreme potentials is due to the formation of a several-nanometre-thick fluorinated interphase.<p /> <p>Language: en</p>",
language="en",
issn="1748-3387",
doi="10.1038/s41565-018-0183-2",
url="http://dx.doi.org/10.1038/s41565-018-0183-2"
}