TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Composition: Metals (M',M'") include nickel, cobalt, magnesium, aluminum, boron, titanium, vanadium, chromium, iron, copper, zinc, zirconium, molybdenum, tin, calcium, strontium, tungsten, silicon and barium. Metal (M") includes cobalt, magnesium, aluminum, boron, titanium, vanadium, chromium, iron, copper, zinc, zirconium, molybdenum, tin, calcium, strontium, tungsten, silicon and barium.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Composition: The electrode compound includes lithium-manganese-cobalt-nickel-metal complex oxide of formula: Li1+a(MnbCocNi1-bc)1-aM'dO2-e, lithium-manganese-metal complex oxide of formula: LifNi1-g-hMngM"hO2-iXj and/or lithium-manganese-metal complex oxide of formula: LiM'"kMn2-kO4. The atom other than silicon is aluminum, boron, phosphorus, sulfur, carbon and hydrogen. The monovalent hydrocarbon group is alkyl group, alkenyl group, alkynyl group, cycloalkyl group and aryl group. The halogenated group includes fluorine group, chlorine group, bromine group and iodine group. The silyl compound is of formula: (Si(R1)3-O)m-Y'.M'=element from group 2-15 (excluding manganese, cobalt and nickel), preferably ;a=0-0.25;b=0.3-0.7;c=0 to 1-b;d=0-1;e=0-1;M"=element from group 2-15 (excluding manganese);X=element from group 16 and 17 (excluding oxygen), preferably fluoro, chloro, bromo or iodo;f=0-1.5;g=0-1;h=0-1;i=-0.1 to 0.2;j=0-0.2;M'"=element from group 2-5 (excluding manganese);k=0-1;R1=monovalent hydrocarbyl or halo, preferably fluoro, chloro, bromo, and iodo;Y'=group chosen from groups of formulae (i)-(xi);Z1=halo, preferably fluoro, chloro, bromo, and iodo;Z2,Z4=monovalent hydrocarbyl, preferably alkyl, alkenyl, alkynyl, cycloalkyl, aryl, or halo, preferably fluoro, chloro, bromo, and iodo;Z3=H or halo, preferably fluoro, chloro, bromo, and iodo;Z5=divalent hydrocarbyl, preferably alkylene, alkenylene, alkynylene, cycloalkylene or arylene, or halo, preferably fluoro, chloro, bromo, and iodo;andn=1 or more.