APPLICATION OF FEOCI DERIVATIVE FOR A SECONDARY LITHIUM BATTERY .1. DISCHARGE AND CHARGE CHARACTERISTICS OF AMORPHOUS FEOOH PREPARED BY ION-EXCHANGE REACTION OF FEOCI INCLUDING ANILINE

A derivative of FeOCl was chemically prepared by ion exchanging Cl- ions with OH- ions. This modification was made in order to improve the discharge and charge characteristics of a secondary lithium battery made with this material as the cathode. The preparation was accomplished by using the intercalation compound of FeOCl and aniline as an intermediate which has a high reactivity with water. The x-ray diffraction patterns of the reactant and product indicate that a structural change occurred, and the product structure became amorphous. The FT-IR spectrum of the reaction product indicates that an organic compound, which is similar to a secondary phenyl amine, remains in the interlayer space of this product. The discharge and charge characteristics of a lithium battery using this cathode were examined using a coin-type cell. The small cell showed excellent cycleability.