TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The manganese scavenger is present at 0.1-20 wt.% based on the total weight of anode active material. The manganese scavenger is electron-conducting titanium based compound. The scavenger is made of titanium dioxide (preferred) or titanium disulfide. The anode material is carbon based material. The carbon based anode active material is carbon particles, e.g. graphite based carbon, coke based carbon, or hard carbon. The cathode comprises manganese spinel based cathode active material (greater than 30 wt.%). EXAMPLE - Hard carbon powder with mean particle size of 10 square units and anatase type titanium dioxide with mean particle size of 50 nm were introduced into fusion system at weight ratio of 97:3. The introduced powders were premixed at 250 revolutions per minute (rpm) for 10 minutes and then mixed at 1000 rpm for 30 minutes so that the surface of the hard carbon powder was coated with titanium dioxide. The hard carbon powder coated with thermally treated at 400degreesC to prepare carbon based anode active material. The measured thickness of coating layer is 100 nm. N-methyl-2-pyrrolidinone (NMP) was added to mixture of anode active material (90 wt.%), polyvinylidene fluoride (PVDF) (9 wt.%) and Super-P(RTM: conducting material) (1 wt.%) to prepare slurry. The slurry was coated on copper foil and then dried at 130degreesC to prepare an anode. Lithium permanganate (90 wt.%), Super-P(RTM: conducting material) (5 wt.%), and PVDF (5 wt.%) were mixed with each other, and NMP was added to it to prepare slurry. The slurry was coated on an aluminum foil, and dried at 130degreesC to prepare cathode. The anode and cathode prepared was used to fabricate bicell-type battery. The titanium dioxide coated on the carbon based anode active material serves as manganese scavenger but shows decreased amount of manganese reduction compared to carbon material due to low electron conductivity, resulting in the performance improvement of the manganese based lithium secondary battery.