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 graphi te with glassy carbon) in a eutectic LiCl-KCl binary molten salt has b een investigated at 360-500 degrees C, as a fundamental study on high temperature lithium secondary cells. Both cyclic voltammetric and galv anostatic charge/discharge data suggested that reversible insertion/ex traction 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 numbe r. (C) 1997 Published by Elsevier Science S.A.