Electroless plating of tin on copper foil (2-D) and foams (3-D) was used to create carbon-and
binder-free thin films for solid electrolyte interphase (SEI) property investigation. When
electrochemically cycled vs lithium metal in coin cells, the foam electrodes exhibited better
cycling performance than the planar electrodes due to electrode curvature. The effect of the
additive/cosolvent fluoroethylene carbonate (FEC) was found to drastically improve the
capacity retention and Coulombic efficiency of the cells. The additive amount of 2% FEC is …