Development of Supercapacitors with Oxide Electrode

(1)非贵金属氧化物电极用TiQ_2和V_2O_5合成的二元氧化物电极具有较高的电容量，约为100 F g^<-1>。该值与市场上销售的碳电极的电容相对应，而二元氧化物电极Ti-V-O的表面电荷高于0.4 mC cm^<-2>，是已发表的传统电极中表面活性最高的。在0.5 M H_2S0_4中，活性炭以Mo0_3/C负载Mo0_3，使电容提高33%。(2)贵金属氧化物电极，高比表面积二元氧化物。Ru-V-O是通过可聚合配合物的方法合成的。在Ru_<35>V_<65>O_2的组成下，该二元氧化物电极的电容最高，为1200 F g^<-1>_<(Ru02)>。在氧化物中加入乙炔黑，提高了功率密度。其电容量不仅比溶胶-凝胶法制备的Ru0_2nH_20超细颗粒高20倍，而且比非晶态Ru0_2nH_20的电容量高20倍以上，创下了世界纪录。(3)校社合作发展a)与Rubycon公司合作：在有机电解液中检测Mo0_3/C电极的电容；而Mo0_3对活性炭的吸附效果影响不大。b)与Shinko Electric Ind. Co.合作：用SAM和EPMA表征了Ru0_2-Ir0_2/Ti和Ru0_2-Ti0_2/Ti电极的表面组成。在氧化层的泥裂处观察到大量Ru和Ir的偏析。讨论了在电路中使用超级电容器的要求（尺寸、电容、热阻）。c)与长野县工业研究所合作：用SAM表征了Ir0_2-Ti0_2/Ti电极的表面成分。沿氧化层的泥裂处观察到大量的Ir偏析。讨论了氧化包覆电极的设计策略。10. 关键词：少

(1) Non-precious Metal Oxide Electrodes The binary oxide electrodes synthesized with TiQ_2 and V_2O_5 provided high capacitance, ca. 100 F g^<-1>. This value corresponds to the capacitance of the carbon electrodes put on the market, and the surface charge of the binary oxide electrodes, Ti-V-O, was higher than 0.4 mC cm^<-2> which is the highest surface activity among the conventional electrodes published. Loading of Mo0_3 on activated carbon, Mo0_3/C, resulted in an increase of the capacitance up to 33% in 0.5 M H_2S0_4.(2) Precious Metal Oxide Electrodes High-surface area binary oxide. Ru-V-O, was developed by polymerizable complex method. The electrodes with this binary oxide provided highest capacitance, 1200 F g^<-1>_<(Ru02)>, at a composition of Ru_<35>V_<65>O_2. The power density was improved by an addition of acetylene black to the oxide. The capacitance is not only 20 times higher than that of the ultrafine Ru0_2 particles prepared by a sol-gel method, but also higher than tha … More t of the amorphous Ru0_2nH_20 which has been the world record.(3) Development of University and Society Collaboration a)Collaboration with Rubycon Co. : The capacitance of Mo0_3/C electrode was examined in organic electrolyte ; however, little effect of the addition of Mo0_3 to the activated carbon was observed. b)Collaboration with Shinko Electric Ind. Co. : The surface composition of Ru0_2-Ir0_2/Ti and Ru0_2-Ti0_2/Ti electrodes were characterized by SAM and EPMA. Considerable segregation of Ru and Ir was observed along the mud-crack of the oxide layer. The requirements of the supercapacitors (size, capacitance, thermal resistance) in order to use them electric circuits were discussed. c)Collaboration with Industrial Research Institute of Nagano Prefecture: The surface composition of Ir0_2-Ti0_2/Ti electrodes were characterized by SAM. Considerable segregation of Ir was observed along the mud-crack of the oxide layer. The strategy of the design of oxide-coated electrodes were discussed. 10. KEY WORDS Less