Passivating lithium electrodes with trimethylsilylacetylene

In this work, it was determined that the increase in electrode resistance a s a function of immersion time was suppressed by coating lithium electrodes with trimethylsilylacetylene (TMSA). The increase in resistance as a funct ion of time was determined to be 0.067 and 0.0035 Omega cm(2)/day for the u ncoated and trimethylsilylacetylene-coated lithium electrodes, respectively . Additionally, in an experiment that simulated galvanostatic cycling condi tions, the polarization during lithium deposition was 100 mV less for the t rimethylsilylacetylene-coated electrode. (C) 2001 Elsevier Science B.V. All rights reserved.