Figure 3.

a) ΔrG of reactions between molten Li and possible elements or compounds in the periodic table at temperatures from 180 to 300 °C. Reproduced with permission.^{[ 47 ]} Copyright 2019, Springer Nature. b) Optical observations of the wettability of molten Li–Sn alloys with different ratios of Sn on alumina substrates. Reproduced with permission.^{[ 48 ]} Copyright 2018, Wiley‐VCH. c) Schematic representation of the current collector by sandwiching the reactive Li_xM nanoparticles into graphene sheets. Reproduced with permission.^{[ 58 ]} Copyright 2017, Springer Nature.