Abstract: To provide a glass frit for forming an electrode, to be used for forming a light-receiving surface electrode for a solar cell, which has suitable glass fluidity and Si reactivity required to form a light-receiving surface electrode and a sufficient water resistance. A glass frit for forming an electrode to be used for forming a light-receiving surface electrode 12 for a solar cell 1, which comprises from 3 mol % to 20 mol % of SiO2, from 10 mol % to 40 mol % of Bi2O3, from 15 mol % to 45 mol % of B2O3, from 10 mol % to 60 mol % of ZnO and from 2 mol % to 10 mol % of Ti2O, wherein the total content of Bi2O3 and ZnO is from 35 mol % to 70 mol %.

Abstract: To provide a glass frit for forming an electrode, to be used for forming a light-receiving surface electrode for a solar cell, which has suitable glass fluidity and Si reactivity required to form a light-receiving surface electrode and a sufficient water resistance. A glass frit for forming an electrode to be used for forming a light-receiving surface electrode 12 for a solar cell 1, which comprises from 3 mol % to 20 mol % of SiO2, from 10 mol % to 40 mol % of Bi2O3, from 15 mol % to 45 mol % of B2O3, from 10 mol % to 60 mol % of ZnO and from 2 mol % to 10 mol % of Ti2O, wherein the total content of Bi2O3 and ZnO is from 35 mol % to 70 mol %.

Abstract: A process for producing an electrode for an electric double layer capacitor, in which water is used as a forming auxiliary agent and kneading an pulverizing steps are omitted to improve production efficiency, and a process for producing an electric double layer capacitor employing such a electrode, are provided. In a first mixing step, an activated carbon and a carbon black are mixed by a grinder containing a grinding medium. As the grinder containing a grinding medium used in this first mixing step, a commonly used ball mill can be used. In the second mixing step, a mixture is taken out from the grinder containing a grinding medium of the first mixing step, and moved into a second mixer prepared separately. Then, polytetrafluoroethylene as a binder and water as a liquid lubricant are added and the materials are mixed again. Thereafter, a calendar forming is carried out.

Abstract: A process for producing an electrode for an electric double layer capacitor, in which water is used as a forming auxiliary agent and kneading an pulverizing steps are omitted to improve production efficiency, and a process for producing an electric double layer capacitor employing such a electrode, are provided. In a first mixing step, an activated carbon and a carbon black are mixed by a grinder containing a grinding medium. As the grinder containing a grinding medium used in this first mixing step, a commonly used ball mill can be used. In the second mixing step, a mixture is taken out from the grinder containing a grinding medium of the first mixing step, and moved into a second mixer prepared separately. Then, polytetrafluoroethylene as a binder and water as a liquid lubricant are added and the materials are mixed again. Thereafter, a calendar forming is carried out.

Abstract: A carbonaceous material having a total pore volume of from 0.5 to 1.5 cm3/g per unit mass, a volume of micropores having diameters of from 10 to 20 ? of from 10 to 45% based on the total pore volume, a volume of mesopores having diameters of from 20 to 200 ? of from 35 to 65% based on the total pore volume, a volume of macropores having diameters exceeding 200 ? of not more than 15% based on the total pore volume, and a specific surface area of from 1,000 to 2,500 m2/g. The carbonaceous material is incorporated into an electric double layer capacitor to provide increased capacitance.

Abstract: A production method which comprises reacting one or more feedstock compounds to form a desired compound having a boiling point higher than the feedstock compounds, wherein the reaction is carried out under reflux in a distillation column portion of a reactor provided with the distillation column.

Abstract: A method for producing a polyfluoropropionyl halide, which is characterized by oxidizing at least one dichloropentafluoropropane selected from 3,3-dichloro-1,1,1,2,2-pentafluoropropane and 1,3-dichloro-1,1,2,2,3-pentafluoropropane by oxygen under irradiation with light and in the presence of chlorine.The polyfluoropropionyl halide can be obtained from the dichloropentafluoropropane industrially advantageously in good yield. Further, in a gas phase reaction, the polyfluoropropionyl halide can be obtained in a very high reaction yield without decomposition of the desired product and without corrosion of the material for the reactor or the glass for the light source portion even in a reaction for a long period of time.