TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The metal has electronic conductivity of 10 4-10 6 S/cm comprising tin, silicon, titanium, germanium, lead, bismuth, antimony, gallium, their chlorides, hydroxide, oxyhyroxide, nitrate, carbonate, acetate, oxalate and/or citrate. The inorganic particulate comprises vanadium oxide, lithium vanadium oxide, silicon oxide, tin oxide and/or titanium dioxide (TiO2) (preferably anastase-type TiO2). The reducing agent is sodium borohydride and/or hydrazine. Preferred Composition: The second solution comprises 0.05-0.5 M metal material. The mixed solution comprises inorganic particulate and metal in a mole ratio of 0.9:0.1 to 0.7:0.3. The mole ratio of reducing agent to metal material is 0.1-3:1. EXAMPLE - A solution comprising anatase titanium dioxide (TiO 2) powder (4 g) dissolved in sodium hydroxide (70 ml) was treated with ultrasonic waves for 30 minutes, placed in TEFLON(RTM: PTFE) bottle, reacted at 150 degrees C for 48 hours, allowed to stand in 0.1 M hydrochloric acid for 1 hour, washed with water and dried at 150 degrees C. The dried powder was heat-treated at 400 degrees C for 3 hours to synthesize anatase-type TiO 2 nanotubes (aspect ratio: 100) and mixed with 1,2-dimethoxyethane (100 ml) at 200 degrees C and 100 rpm to form first solution. A second solution was prepared by dissolving tin tetrachloride (1.8 ml) in 1,2-dimethoxyethane (30 ml). The second solution was mixed with first solution and added with reducing agent sodium borohydride powder (0.8 g). The negative active material obtained was washed with acetone and water 3 times and vacuum-dried at 80 degrees C. The negative active material was mixed with Super-P(RTM: carbon black) conductive agent and polyvinylidene fluoride binder at weight ratio of 80:10:10, coated on aluminum foil at 300 microns thickness, dried at 130 degrees C for 20 minutes and compressed at 1 ton to form a negative electrode substrate. The negative electrode substrate was used with lithium metal as counter electrode to fabricate coin-type cell with an electrolyte prepared by dissolving 1 M of lithium hexafluorophosphate in a solvent including ethylene carbonate and dimethyl carbonate at volume ratio of 1:1. The coin-type cell had high capacity retention of 79% and very low irreversible capacity rate of 10% between initial discharge capacity of 222 mAh/g and charge capacity of 199 mAh/g.