Stable Cycling of Lithium Metal Batteries Using High Transference Number Electrolytes

Abstract

An electrolyte with high lithium transference number (t Li+) is predicted by theory to retard lithium dendrite formation and growth in rechargeable lithium metal batteries. Lithiated perfluorinated polymer electrolyte membranes (Li-PEM) are synthesized to study the effects of t Li+ on Li dendrite growth in an ideally single-ion conductive electrolyte system. Consistent with theory, a more than 40-fold improvement in cell lifetime is found. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.