AS AN ALLOTROPE OF GRAPHITE, CARBON NANOTUBES (CNTS) HAVE BEEN APPROVED TO BE A GOOD ANODE MATERIAL FOR LITHIUM BATTERIES DUE TO THEIR UNIQUE STRUCTURE (ONEDIMENSIONAL CYLINDRICAL TUBULEOF GRAPHITE SHEET), HIGH CONDUCTIVITY, LOW DENSITY, HIGH RIGIDITY AND HIGH TENSILE STRENGTH MWCNTS CAN HAVE REVERSIBLE CAPACITIES ANYWHERE FROM 300 TO 600MAH/G [1]. AG ADDITION INCREASES THE ELECTRONIC CONDUCTIVITY OF THE COMPOSITES AND ALLOWS CONVENIENT TRANSFER OF LI-ION IN THE COMPOSITE STRUCTURE [2].THE ELECTROCHEMICAL RESULTS SHOW THAT THE TIO2 NANOPARTICLES IN THE COMPOSITE RESTRAIN THE FORMATION OF SURFACE FILM AND MAKE A CONTRIBUTION TO THE OVERALL REVERSIBLE CAPACITY. SILICON THIN-FILM SHOWS VERY HIGH FIRST-CYCLE COULOMBIC EFFICIENCY (95%), EXCELLENT CYCLIC PERFORMANCE AND HIGH REVERSIBLE CAPACITY. AMONG ALL OF THE TRANSITION-METAL OXIDES STUDIED, COBALT OXIDES SHOWED A HIGH THEORETIC REVERSIBLE SPECIFIC CAPACITY [3].IN THIS WORK MULTIWALL CARBON NANOTUBES (MWCNTS) LOADED WITH TIO2/COOSIO2-AG NANOPARTICLES (CNT/TIO2-COO-SI-AG) ARE A COMPOSITE SHOWING PROMISE AS AN ANODE MATERIAL IN LITHIUM-ION BATTERIES. HERE WE PREPARE (MWCNT/TIO2-COO-SI-AG) VIA SOL GEL METHOD. EPD (ELECTROPHORETIC DEPOSITION) METHOD USED FOR DEPOSITION NANOPARTICLES ON FOIL COPPER AS ANODE. THE, STRUCTURE, MORPHOLOGY AND ELECTROCHEMICAL PERFORMANCE OF THE COMPOSITE WERE INVESTIGATED BY SEM, FT-IR, XRAY DIFFRACTION, AND A VARIETY OF ELECTROCHEMICAL TECHNIQUES SUCH AS CYCLIC WOLTAMMETRY (CV) AND CHORONO CHARGE AND DISCHARGE METHOD. THE RESULTS SHOW THAT THE TIO2-COO-SIO2-AG NANOPARTICLES WERE UNIFORMLY DEPOSITED ON THE SURFACE OF CNTS WITH SIZES OF 25-40 NM. THE MWCNT/TIO2-COO-SIO2-AG ANODE MATERIALS SHOWED SUPERIOR CYCLING STABILITY AND A HIGH REVERSIBLE CAPACITY OF 180 MAH/G AFTER 75 CYCLES.

TO IMPROVE THE ELECTRICAL CONDUCTIVITY OF LIFEPO4 CATHODE MATERIALS, THE SIO2 MODIFIED LIFEPO4/C CATHODE MATERIALS ARE SYNTHESIZED BY SPRAY PYROLYSIS SYNTHESIS METHOD, WHICH IS A SIMPLE, SIZE CONTROLLABLE AND CONTINUOUS METHOD, WAS USED. THE ELECTROCHEMICAL PERFORMANCES ARE ALSO CHARACTERIZED AND ANALYZED WITH CHARGE-DISCHARGE TEST, CYCLIC VOLTAMMETRY AND ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY. THE RESULTS SHOW THAT THE EXISTENCE OF SIO2 IMPROVES THE SPECIFIC CAPACITY, RATE CAPABILITY AND CYCLING STABILITY AND LITHIUM ION DIFFUSION RATE OF LIFEPO4 CATHODE MATERIALS AND REDUCES THE CHARGE TRANSFER RESISTANCE OF CELL, AND THE ONE WITH 3WT% SIO2 EXHIBITS THE BEST ELECTROCHEMICAL PERFORMANCE INCLUDING THE INITIAL DISCHARGE CAPACITY IS 148 MAH/G AT 0.1C RATE AND 134 MAH/G AT 1C RATE, KEEPING A CAPACITY RETENTION RATIO OF 95% AFTER 50 CYCLES.

IN JUNE, 1936, WHILE A NEW RAILWAY WAS BEING CONSTRUCTED NEAR THE CITY OF BAGHDAD WORKERS UNCOVERED AN ANCIENT TOMB. IN THE EXCAVATION THAT FOLLOWED IT WAS DETERMINED THAT THE TOMB WAS BUILT DURING THE PARTHIAN PERIOD WHICH RANGED FROM 250 BCE TO 250 CE.THE ARTIFACTS CONSIST OF TERRACOTTA POTS APPROXIMATELY 130 MM (5 IN) TALL (WITH A ONE-AND-A-HALF-INCH MOUTH) CONTAINING A COPPER CYLINDER MADE OF A ROLLED-UP COPPER SHEET, WHICH HOUSES A SINGLE IRON ROD. AT THE TOP, THE IRON ROD IS ISOLATED FROM THE COPPER BY BITUMEN PLUGS OR STOPPERS, AND BOTH ROD AND CYLINDER FIT SNUGLY INSIDE THE OPENING OF THE JAR WHICH BULGES OUTWARD TOWARD THE MIDDLE.

WITH THE GROWTH OF ENERGY CONSUMPTION INHUMAN SOCIETY, ENERGY STORAGE AND USE IT WHEN NEEDED, ON A DAILY BASIS INCREASES. ALSO TO THE LIMITATION OF FOSSIL FUELS AND LONG PERIOD FOR THE REHABILITATION, HUMAN FOLLOWING THE USE OF NEW AND RENEWABLE ENERGY SOURCES, SUCH AS BATTERY. HOLLOW NANOSTRUCTURED ANODEMATERIALS FOR LITHIUMION BATTERIES IN THE HEART OF THE INVESTIGATION INTO THE NEED FOR HIGHER CAPACITY, HIGHER SPEED CAPABILITY AND HIGH SAFETYARE FOLLOWED. IN THIS STUDY, A SIMPLE, LOW COST AND REPRODUCIBLE SYNTHESIS STRATEGY WAS DEVELOPED TO FABRICATE MESOPOROUS MICRO BEAD HARD CARBON BY USING HYDROTHERMAL METHOD. A SERIES OF NANOPOROUSMICRO BEAD HARD CARBONS WAS PREPARED USING PHENOLIC RESIN AS CARBON PRECURSORS. THE EFFECTS OF THE AMOUNT OF THE PORE FORMER ON NANOPOROUS AND HEAT-TREATMENT TEMPERATURE IN THE RANGE FROM 700OC TO 1000OC, ON THEIR ELECTROCHEMICAL PERFORMANCE WERE SYSTEMICALLY STUDIED, INCLUDING THE REVERSIBLE CAPACITY, COULOMBIC EFFICIENCY IN THE FIRST CYCLE, THE RATE CAPABILITY AND CYCLING STABILITY. UNDER THE OPTIMAL CONDITION, THE CARBON MATERIAL OBTAINED AT 700OC WITH 50 WT% PORE FORMER AS NEGATIVE MATERIAL FOR LITHIUM-ION BATTERIES EXHIBITS A REVERSIBLE CAPACITY OF ABOUT 523MAH G-1 AT A CONSTANT CURRENT DENSITY OF 100MAHG-1 IN FIRST CYCLE WITH EXCELLENT RATE CAPABILITY AND CYCLING STABILITY.