IDEA #7Q4RTG ELECTRODE MATERIALS FOR SUPERCONDENSERS

ELECTRODE MATERIALS FOR SUPERCONDENSERS thermal). The way of chemical updating Description The hydro-thermal method for porous carbon material reception at high pressure and technology modes their treatment, as thermal, chemical, and laser modification are development. This invention give perspective material for new generation of condensers. Cheap and ecology plant materials with surface > 1000 m2/g are used. The parameters of got supercondensers are higher than best world samples, and on 3-4 times is cheaper with carbon materials of famous world productions. Main properties: For improvement of supercondensers characteristics it was spent additional activation of received material (chemical, laser, for electrochemical condensers had been spent processing by nitric acid that has given the chance to raise specific capacity of condensers on 5-20 % through clearing of material surface from different sort of not supervised impurity, and also through to occurrence of superficial functional groups which improve contact carbon/electrolyte. The irradiation of porous carbon material by laser impulses leads to stabilization Coulomb efficiency which remains to constant during cycles. It has been received, that the capacity essentially depends on modes thermal annealing and reaches the maximum at annealing temperature 773 K and time of endurance 80 minutes at application of water electrolyte) and 873 K at time of endurance 90 minutes for organic electrolyte. It testifies that at the specified parameters of process (time, temperature) of high-temperature annealing is formed porous system with an optimum parity between volume parts of different diameter both for water, and for organic electrolytes. Areas of Application Parameters of the supercondensers generated on the basis of received porous carbon material from raw materials of phytogenesis, correspond the best world samples. Thus times more cheaply received material in comparison with carbon materials of leading world firms. Stage of Development Patents of Ukraine on Inventions: N 80761 Sources of electrical current. N 80764 Supercondenser. N 81673 Lithium-Ionic Sources of electrical current. N 85677 Galvanic element and reception method for their electrode materials. Patents of Ukraine on Utility Models: N 24159 Storage of electrical energy. N 34215 Electrode materials for Lithium electro-chemical Sources of current and method of their reception. N 37278 Modification method by high laser irradiation of nano-porous carbon. in 3-4 is Table 1. Porous Carbon Materials Characteristics Density, g/cm3 Internal resistance, Specific capacity, F/g (in water electrolit) Initial material Nucleus of apricot Pistachios Coco Phenol- formaldegime gum Specific surface, m2/g 1450 1400 1500 1100 205 190 205 185 Ohm 0,09 0,1 0,12 0,13 0,488 0,505 0,696 0,323 Table 2. Supercondensers parameters due type of electrolyte Type of electrolyte Specific capacity (F/g) Specific internal resistance, (Ohm·cm-2) Specific energy of device (Wt*hour/kg) Voltage (V) Coulomb effectivity (>105 cycles) 33 % wa- ter solu- tion КОН 205 0,1 4,6 1,0 0,99 1 М solution TEABF4 / РС 86 1,1 18 2,7 0,98   Fig.1. Electronic Microscope image of Porous Carbon Materials Contact details: Head of science direction: Ivan M. Budzulyak, Dr.Sci., Prof. Contact person: Lyubomyr I. Nykyruy, PhD, Ass. Prof., Science & Educational Centre Nanomaterials Accumulation and Generation of Energy Devices in Vasyl Stefanyk PreCarpathian National University, Address: 57, Shevchenko Str., Ivano-Frankivsk, 76018, Ukraine Tel.: +(380)-342-596179, Fax: +(380)-3422-31574 E-mail: lyubomyr@mail.ru http://www.pu.if.ua/depart/noc/www2/index.html in