Abstract: A polymer light emitting material, wherein the material has a light emitting mechanism based on transition from an excited triplet state to a ground state or transition through an excited triplet state to a ground state of an electron energy level, and the material comprises a nonionic light emitting part which constitutes a part of the polymer or is bound to the polymer. The polymer light emitting material exhibits high light emission efficiency above 5%, which is the limit of external quantum efficiency of fluorescence and can be designed so as to have a large area and hence are suitable for mass production of organic light emitting devices.

Abstract: A polymer light emitting material, wherein the material has a light emitting mechanism based on transition from an excited triplet state to a ground state or transition through an excited triplet state to a ground state of an electron energy level, and the material comprises a nonionic light emitting part which constitutes a part of the polymer or is bound to the polymer. The polymer light emitting material exhibits high light emission efficiency above 5%, which is the limit of external quantum efficiency of fluorescence and can be designed so as to have a large area and hence are suitable for mass production of organic light emitting devices.

Abstract: A polymer light emitting material, wherein the material has a light emitting mechanism based on transition from an excited triplet state to a ground state or transition through an excited triplet state to a ground state of an electron energy level, and the material comprises a nonionic light emitting part which constitutes a part of the polymer or is bound to the polymer. The polymer light emitting material exhibits high light emission efficiency above 5%, which is the limit of external quantum efficiency of fluorescence and can be designed so as to have a large area and hence are suitable for mass production of organic light emitting devices.

Abstract: The present invention relates to a negative electrode material for a lithium battery characterized by comprising a carbonaceous negative electrode active substance having a specific surface area of 1 m2/g or more, a binder formed of styrene-butadiene rubber and a carbon fiber having a fiber diameter of 1 to 1,000 nm; and to a lithium battery using the negative electrode material, which has excellent characteristics, i.e., low electrode resistance, high electrode strength, excellent electrolytic solution permeability, high energy density, and good high-speed charging/discharging performance. The negative electrode material contains carbon fiber in the amount of 0.05 to 20 mass % and the binder formed of styrene-butadiene rubber in 0.1 to 6.0 mass %, and may further contain a thickner such as carboxymethyl cellulose in the amount of 0.3 to 3 mass %.

Abstract: The present invention relates to a lithium battery positive electrode comprising an active substance that can occlude and release lithium ion, a carbon-based conductivity enhancer, and a binder, characterized in that the positive electrode contains the carbon-based conductivity enhancer in an amount of 0.1 to 2 mass % on the basis of the entire mass of the positive electrode, and that the carbon-based conductivity enhancer contains a carbon fiber having a mean fiber diameter of 1 to 200 nm, wherein the active substance that can occlude and release lithium ion is contained in an amount, as calculated from the true density of the active substance, of 70% by volume or more on the basis of the total volume of the positive electrode; and relates to a lithium battery using the a lithium battery positive electrode. The positive electrode obtained by the present invention has an excellent electrolyte permeability and electrolyte retention. Therefore, it is better adapted to high-density lithium battery.

Abstract: An organic polymeric phosphorescent compound and an organic light-emitting device employing the organic polymeric phosphorescent compound. The phosphorescent compound is a neutral organic polymeric phosphorescent compound emitting phosphorescence and used in an organic light-emitting device, and includes a phosphorescent unit and a carrier transporting unit.

Abstract: The present invention relates to a method for producing a polymer/conductive carbon composite electrode comprising dehydration condensation polymerization of a tetramine derivative and a tetracarbonyl compound in the presence of an electrically conductive carbon material. The synthetized polymer comprises quinoxaline structural units such as polyphenyl quinoxaline (PPQ) and serves as an active material having proton conductivity. The composite material for electrode obtained by the method has a large capacity of inserting/releasing a proton and excellent in durability. An electrode comprising the composite material and a secondary battery comprising the electrode is excellent in safety and reliability high-speed current characteristics, has a longer life and a larger gravimetric energy density (Wh/kg).

Abstract: The conductive magnetic fluid which attains high response speed and large torque and exhibits sealing performance is obtained by dispersing, in a solvent such as silicone oil, ferromagnetic particles such as Ni—Fe alloy, iron, and magnetite, and carbon fiber having a mean fiber diameter of 10 to 500 nm and a mean aspect ratio of 30 to 200. The sealing device and the actuator are produced by use of the conductive magnetic fluid.

Abstract: The invention relates to a high-density electrode, obtained by impregnating a high-density electrode which comprises an electrode active substance and carbon fiber having a fiber filament diameter of 1 to 1,000 nm and has a porosity of 25% or less, with a solid polymer electrolyte; and to a battery including the resultant (high-density) electrode. According to the invention, electrolytic solution permeability and electrolytic solution retainability, which are matters of importance in realizing a high-density electrode for achieving a battery having a high energy density, can be improved.

Abstract: The invention provides a carbon material for a battery electrode, which comprises a carbon powder material as a composite of carbonaceous particles and an a carbon material derived from an organic compound prepared by allowing the organic compound serving as a polymer source material to deposit onto and/or permeate into the carbonaceous particles to thereby polymerize the polymer material and then heating at 1,800 to 3,300° C., and which has an intensity ratio of 0.1 or more for peak intensity attributed to a (110) plane to peak intensity attributed to a (004) plane determined through X-ray diffraction spectroscopic analysis on a mixture of the carbon material and a binder resin when pressed at 103 kg/cm2 or higher. The carbon material which undergoes less deformation/orientation due to application of pressure, has high discharge capacity and small irreversible capacity and exhibiting excellent coulombic efficiency, cycle characteristics and leakage-current load characteristics.

Abstract: At least two metallic materials containing element such as silicon and tin, which has ability of insertion and desertion of lithium element, and optionally another metallic material containing element such as copper are molten to prepare a melt. The melt is rapidly cooled by strip-cast method at a cooling rate of more than 2×103 ° C./sec and no more than 104 ° C./sec to be cast. Further, the cast is milled and classified into alloy powder having an average particle size of 0.1 ?m to 50 ?m. The alloy powder and conductive agent are laminated with binder onto a collector to obtain a negative electrode for a secondary battery. The negative electrode is employed to obtain a lithium secondary battery having high electric charge and discharge capacity, and good property of charge and discharge cycle.

Abstract: The invention relates to a high-density electrode, comprising an electrode active substance and carbon fiber having a filament diameter of 1 to 1,000 nm, wherein the porosity of the electrode is 25% or less. According to the invention, electrolytic solution permeability and electrolytic solution retainability, which are matters of importance in realizing a high-density electrode for achieving a battery having a high energy density, can be improved.

Abstract: The invention relates to a carbon material for forming a battery electrode, comprising carbon powder having a homogeneous structure which is produced by causing an organic compound, serving as a ra.w material of a polymer, to deposit onto and/or permeate into carbonaceous particles, and subsequently polymerizing the organic compound, followed by thermal treatment at a temperature of 1,800 to 3,300° C., which comprises a structure which is substantially uniform throughout the entirety of the particle from the surface to the central core where a graphite crystal structure region and an amorphous structure region are distributed. By using the material, a battery having high discharging capacity and low irreversible capacity, with excellent coulombic efficiency and excellent cycle characteristics can be fabricated. The carbon material of the invention may contain carbon fiber filaments. Average roundness, BET specific surface area, true density, laser Roman R value, and average particle size were investigated.

Abstract: The present invention provides a solid polymer electrolyte; a polymerizable composition having low viscosity and excellent processability for obtaining the solid polymer electrolyte; and a polymerizable compound having low viscosity, and good polymerizability and stability for use in the polymerizable composition. The present invention also provides primary and secondary batteries capable of working with high capacity and current; an electric double-layer capacitor ensuring high output voltage, large takeout current, and good processability; and an electrochromic device favored with high response speed. Each thereof use the solid polymer electrolyte of the present invention and are ensured with long life, excellent safety free of liquid leakage, high reliability and production at a low cost.

Abstract: The present invention provides a solid polymer electrolyte; a polymerizable composition having low viscosity and excellent processability for obtaining the solid polymer electrolyte; and a polymerizable compound having low viscosity, and good polymerizability and stability for use in the polymerizable composition. The present invention also provides primary and secondary batteries capable of working with high capacity and current; an electric double-layer capacitor ensuring high output voltage, large takeout current, and good processability; and an electrochromic device favored with high response speed. Each thereof use the solid polymer electrolyte of the present invention and are ensured with long life, excellent safety free of liquid leakage, high reliability and production at a low cost.

Abstract: A polymer light emitting material, wherein the material has a light emitting mechanism based on transition from an excited triplet state to a ground state or transition through an excited triplet state to a ground state of an electron energy level, and the material comprises a nonionic light emitting part which constitutes a part of the polymer or is bound to the polymer. The polymer light emitting material exhibits high light emission efficiency above 5%, which is the limit of external quantum efficiency of fluorescence and can be designed so as to have a large area and hence are suitable for mass production of organic light emitting devices.

Abstract: The present invention provides a solid polymer electrolyte; a polymerizable composition having low viscosity and excellent processability for obtaining the solid polymer electrolyte; and a polymerizable compound having low viscosity, and good polymerizability and stability for use in the polymerizable composition. The present invention also provides primary and secondary batteries capable of working with high capacity and current; an electric double-layer capacitor ensuring high output voltage, large takeout current, and good processability; and an electrochromic device favored with high response speed. Each thereof use the solid polymer electrolyte of the present invention and are ensured with long life, excellent safety free of liquid leakage, high reliability and production at a low cost.

Abstract: The present invention relates to a method for producing a polymer/conductive carbon composite electrode comprising dehydration condensation polymerization of a tetramine derivative and a tetracarbonyl compound in the presence of an electrically conductive carbon material. The synthetized polymer comprises quinoxaline structural units such as polyphenyl quinoxaline (PPQ) and serves as an active material having proton conductivity. The composite material for electrode obtained by the method has a large capacity of inserting/releasing a proton and excellent in durability. An electrode comprising the composite material and a secondary battery comprising the electrode is excellent in safety and reliability high-speed current characteristics, has a longer life and a larger gravimetric energy density (Wh/kg).

Abstract: The present invention provides a proton migration type secondary battery using as an electrode active material a polymer having a quinoxaline structure exhibiting a large proton insertion-release capacity, the secondary battery being excellent in its safety, reliability and rapid current properties, and having a long life and a high weight energy density (kWh/kg), compared with the conventional aqueous solution type double layer capacitor and a lead acid battery using sulfuric acid. Also, the present invention provides a proton migration type secondary battery excellent in productivity and further in safety and reliability by using a solid electrolyte and/or a gel electrolyte obtained by curing a mixture of a polymerizable compound excellent in its polymerizability and a proton conductive electrolyte. Further, the present inventors provide a proton migration type secondary battery having a further long life and excellent in reliability by adding a non-electrically conductive powder to the electrolyte.

Abstract: An organic polymeric phosphorescent compound that is stable and emits very highly efficient phosphorescence, used as a material of an organic light-emitting device is provided. Also, an organic light-emitting device employing the organic polymeric phosphorescent compound's provided. The phosphorescent compound according to the present invention is a neutral organic polymeric phosphorescent compound emitting phosphorescence and used in an organic light-emitting device, characterized in that a phosphorescent unit being a repeat unit for emitting phosphorescence and a carrier transporting unit being a repeat unit for transporting a carrier are included.