ANODE ACTIVE MATTER COMPOSITION AND SECONDARY LITHIUM BATTERY CONTAINING THE SAME

摘要

PURPOSE: An anode active matter composition is provided to have long life time characteristics. CONSTITUTION: An anode active matter composition is obtained as follows. LiOH and MnO2 is measured so that a mole ratio of Li/Mn is 1/2. The sufficient amount of ethanol is added, and a resultant matter is mixed until the ethanol is removed. A mixed matter is annealed under dry atmosphere during five hours at 450°C, thus LiMn2O4 powder of precursor of a quasi crystal state is obtained. The LiMn2O4 powder of the quasi crystal state is re-mixed so as to be distributed lithium salt uniformly. A resultant product is annealed during 12 hours at 750°C, thus LiMn2O3 of a crystal state is obtained.