Abstract: A pregel composition is added to an organic electrolyte solution of an electrolyte salt in a nonaqueous solvent for causing the solution to gel and form a polymer gel electrolyte. The pregel composition is dehydrated by azeotropic distillation and has a moisture content of not more than 1,000 ppm as determined by Karl Fischer titration. Polymer gel electrolytes prepared with such a pregel composition have a good electrochemical stability, and are thus highly suitable for use in secondary cells and electrical double-layer capacitors.

Abstract: A mixer and a method for mixing and press-sliding a mixture of an ion-conducting polymer or a raw material of the ion-conducting polymer with a powdered substance 11 are disclosed. Due to the effective press-sliding process of this invention, the powdered substance 11 is effectively coated with the ion-conducting polymer 12.

Abstract: A nonaqueous electrolyte secondary battery is made up of a positive electrode and a negative electrode which are composed of a lithium ion-occluding and releasing material and a binder polymer, at least one separator for separating the positive and negative electrodes, and a nonaqueous electrolyte which is composed of a lithium salt and an organic solvent. The electrolyte includes also a substance which is oxidized at the positive electrode at a cell voltage of from 4.1 V to 5.2 V, and which provokes an oxidation reaction that differs from the lithium-releasing reaction. The presence of this substance improves the overcharge characteristics and safety of the nonaqueous electrolyte secondary battery.

Abstract: An accumulator power supply unit equalizing the voltage between terminals of the respective accumulator block to be a predetermined value without being affected by different characteristics of the accumulator block such as electric double layer capacitor and secondary battery in series or serial-parallel connection. The accumulator power supply unit comprises plural accumulator blocks in a series connection or a serial-parallel connection and plural transform charging circuits connected in parallel to the respective accumulator block, wherein the respective accumulator block is independently charged by the transform charging circuit and a control method for the same.

Abstract: The water present within an ionic liquid that is in a liquid state at 25° C. or an organic solution containing at least one ionic compound is decomposed by bringing electrodes into contact with the ionic liquid or organic solution within an atmosphere having a dew-point temperature not higher than −40° C. or under a reduced pressure of not more than 75 torr, thereby reducing the water content. This process makes it possible to obtain highly dehydrated ionic liquids.

Abstract: To provide an electrical component, in which ions migrate between electrodes and which provides high efficiency. A method for manufacturing an electrical component, in which ions migrate between electrodes, whereby an ion conductive polymer layer 2 dissolving ions is formed on an electrode material layer 12 of at least one of a pair of electrode structures 1 which comprise an electrode material layer 12 formed on a current collector 11, said pair of electrode structures 1 are arranged at opposed positions with the current collector 11 facing outward, and this is stored in a housing 4, and liquid electrolyte is injected into the housing.

Abstract: The addition of a compound which reductively decomposes on a potential at least 1.0 V higher than the equilibrium potential of metallic lithium and lithium ions (a potential versus Li/Li+ of +1.0 V or more) to an electrolyte solution for a secondary cell keeps propylene carbonate, when used as an organic electrolyte therein, from decomposing on the negative electrode. Such addition also improves the cycle properties, electrical capacity and low-temperature characteristics of the cell.

Abstract: A polymer gel electrolyte-forming composition which includes a pregel composition having a viscosity at 20° C. of at most 100 cP is impregnated into an electrical double-layer capacitor assembly or a cell assembly composed of a positive electrode, a negative electrode and a separator. This process enables the polymer gel electrolyte-forming composition to rapidly and uniformly penetrate into the cell or capacitor assembly and provides a battery or capacitor having excellent cycle properties.

Abstract: Electrical storage devices having excellent low-temperature properties can be obtained by using a quaternary salt (or ionic liquid) of general formula (1) below as an electrolyte salt for electrical storage devices or a liquid electrolyte for electrical storage devices.

Abstract: A polymer gel electrolyte composition is composed primarily of (A) a polymeric compound having an average degree of polymerization of at least 20 which contains polyvinyl alcohol units of the following general formula (1): 1

Abstract: An electrode structure composed of a low resistance electrode film with good bonding properties on a current-collecting member surface, and manufacturing method for a battery and double-layer capacitor utilizing that element. An electrode structure is formed as follows: a mixed compound containing an electrode material, a binder and a solvent is coated on a current-collecting member surface, infrared radiation is directed onto the mixed compound, to vaporize the solvent, and to form an electrode film on the current-collecting member surface. This method relates to the electrode structure and a method for manufacturing a battery and an electrical double-layer capacitor.

Abstract: A polymer battery which includes a cell assembly having a positive electrode, a negative electrode, and a separator composed primarily of a fluoropolymer is manufactured by impregnating the cell assembly with an electrolyte composition containing (A) an ion-conductive salt, (B) a solvent in which the ion-conductive salt is soluble and (C) a compound having at least two reactive double bonds per molecule, then reacting the component C compound to form a three-dimensional network structure. The polymer battery has a high safety, a good thermal cycling resistance and robust characteristics even when held at an elevated temperature, making it particularly suitable for use as a lithium secondary cell or a lithium ion secondary cell.

Abstract: This invention relates to an electrode with an excellent quality for an electrical component, wherein an electrode raw material sheet slitter 3 comprising a slitting section 32 to slit an electrode raw material sheet 4 for an electrical component, a forming section 35 to conduct smoothing of the convex portion 17 on the slit electrode 41, electrode cleaning sections 33, 34 to remove fragments adhered on the slit electrode 41 and a slitting method of electrode raw material sheet.

Abstract: To provide an electrical component, in which ions migrate between electrodes and which provides high efficiency. A method for manufacturing an electrical component, in which ions migrate between electrodes, whereby an ion conductive polymer layer 2 dissolving ions is formed on an electrode material layer 12 of at least one of a pair of electrode structures 1 which comprise an electrode material layer 12 formed on a current collector 11 said pair of electrode structures 1 are arranged at opposed positions with the current collector 11 facing outward, and this is stored in a housing 4, and liquid electrolyte is injected into the housing.

Abstract: The present invention discloses a process for preparing controlled-release preparations which can rapidly release 99% or more of a slightly soluble medicament (which has by itself shows a slow dissolution rate) in the upper part of the small intestine and compositions thereof. The present invention also discloses a process comprising carrying a slightly soluble medicament which has a slow intestinal dissolution rate on aggregates of the spherical microparticles of a multivalent metal alginate, in which each of the secondary particles (i.e., the aggregates) has a specific surface area ranging from 1 to 280 m2/g and compositions thereof.

Abstract: An electrode with an excellent quality for an electrical component, wherein an electrode raw material sheet slitter includes a slitting section to slit an electrode raw material sheet for an electrical component; a forming section to conduct smoothing of the convex portion on the slit electrode; electrode cleaning sections to remove fragments adhered on the slit electrode; and, a slitting method of electrode raw material sheet.

Abstract: There are disclosed a bioreactor carrier comprising a (A) water swellable thermoplastic resin, preferably water swellable thermoplastic polyurethane resin and a (B) specific inorganic filler which is added thereto at the time of producing and/or molding said resin, characterized in that the specific gravity of the carrier on swelling in water is controlled within the range of 1.02 to 1.35; a process for producing the bioreactor carrier; and a process for denitrifying treatment of organic waste water which comprises nitrifying and denitrifying nitrogen components in the organic waste water with microbes by the use of the above bioreactor carrier. The bioreactor carrier has high physical strength, can be readily produced and uniformly fluidized in a reactor, and enables microbial and enzymatic reactions to be effectively performed.

Abstract: A capacitor system suitable for charging and discharging of a vehicle such as discharging due to starting of an engine, charging by an alternator, and recharging upon braking. The capacitor system can be a vehicle power source having several connected cells in which ion conductive materials are arranged between a pair of electrode structures with large surface area materials and an electric double layer is formed between the large surface area materials in the electrode structure and an electrolyte of the ion conductive materials. Charging and discharging are controlled for state of charge of the capacitor unit with several connected modules to be within a predetermined range. A minimum charge within the predetermined range is sufficient for the engine to start while a maximum charge within the predetermined range is within a rated voltage of the capacitor unit with several connected modules.

Abstract: There are disclosed a bioreactor carrier comprising a (A) water swellable thermoplastic resin, preferably water swellable thermoplastic polyurethane resin and a (B) compatible resin with the resin as the component (A), and as the case may be, a (C) inorganic filler, characterized in that the degree of volumetric swelling of said carrier is controlled within the range of 120 to 3000%, and that the specific gravity of said carrier on swelling in water is controlled within the range of 1.02 to 2.12; a process for producing the bioreactor carrier; and a process for denitrifying treatment of organic waste water which comprises nitrifying and denitrifying nitrogen components in the organic waste water with microbes by using the above bioreactor carrier. The bioreactor carrier has high physical strength, can be readily produced and uniformly fluidized in a reactor, and enables microbial and enzymatic reactions to be effectively performed.

Abstract: There is disclosed a process for nitrifying denitrifying organic waste water to nitrify and denitrify the nitrogenous components in the waste water, which comprises making use of a microbe carrier composed of an organic thermoplastic high molecular compound (thermoplastic polyurethane) in both a nitrifying step and a denitrifying step, preferably in an alternate and repeated manner, wherein the compound has, in a state of complete swelling in water, a water absorption rate in the range of 50 to 3500%, a compressive yield stress of at least 1.0 MPa each being defined by a specific formula, and a particle diameter in the range of 1.0 to 30 mm. The process is capable of efficiently performing nitrifying and denitrifying steps, steadily achieving high treatment performances, contriving compactification of the treatment facility, and curtailing the treatment time and treatment cost, while the microbe carrier can withstand long-term service without any trouble.