2normalMethyl‐normaltetrahydrofuranfalse(2normalMe‐THFfalse)/LiAsF6
and several diethyl ether
false(DEEfalse)/LiAsF6‐normalbased
electrolytes have been characterized for their usefulness in rechargeable
normalLi/TiS2
cells. This characterization has involved extended room temperature cell cycling at various depths of discharge, evaluation of rate/capacity behavior of cells at 25° and −10°C, and storage of cells at 50°C for up to one month with subsequent cycling. The thermal stability of the electrolytes at 71°C was evaluated by storage experiments in sealed tubes, followed by product analysis. The performance of
2normalMe‐THF/LiAsF6
cells far surpassed the others. The present data further substantiate previous reports from this laboratory of the superior behavior of
2normalMe‐THF/LiAsF6
solutions in rechargeable Li cells. The
DEE/LiAsF6‐normalbased
electrolytes are too unstable thermally to be of practical use.