Anodic behavior of a carbon plate in an LiCl-KCl binary molten salt

The behavior of a negative pole of a carbon plate (a mixture of graphite with glassy carbon) in a eutectic LiCl-KCl binary molten salt has been investigated at 360-500 degrees C, as a fundamental study on high temperature lithium secondary cells. Both cyclic voltammetric and galvanostatic charge/discharge data suggested that reversible insertion/extraction of lithium can take place accompanied by stage formation. The interlamellar distance of carbon increased upon lithium insertion and the coulombic efficiency became higher with galvanostatic cycle number. (C) 1997 Published by Elsevier Science S.A.