Abstract: An electrolyte solution including a solvent containing a fluorinated acyclic carbonate having a fluorine content of 33 to 70 mass %, a sultone derivative, and an electrolyte salt.

Abstract: Provided is an electrolyte solution for secondary batteries that are less likely to generate gas and excellent in high-temperature storage characteristics; an electrochemical device using the electrolyte solution; and a module using the electrochemical device. The electrolyte solution contains a solvent and an electrolyte salt, the solvent containing a fluorine-containing acyclic carbonate represented by the formula (1) and a fluorine-containing maleic anhydride represented by the formula (2). The electrolyte solution contains not less than 0.001 mass % but less than 90 vol % of the fluorine-containing acyclic carbonate, and the electrolyte solution contains 0.001 to 20 mass % of the fluorine-containing maleic anhydride.

Abstract: A nonaqueous electrolyte solution including: a nonaqueous solvent; and an electrolyte salt. The nonaqueous solvent contains a fluorinated linear carbonate (A) represented by Formula (1): RfOCOOR where Rf represents a C1-4 fluorinated alkyl group and R represents a C1-4 alkyl group, and at least one cyclic carbonate (B) selected from ethylene carbonate, propylene carbonate, and fluoroethylene carbonate. The nonaqueous solvent also contains at least one compound (?) and at least one compound (?) as defined herein. The compound (?) is contained in an amount of 5000 ppm or less based on the amount of the fluorinated linear carbonate (A), and the compound (?) is contained in an amount of 50 ppm or less based on the amount of the cyclic carbonate (B). Also disclosed is an electrochemical device and a lithium ion secondary cell containing the nonaqueous electrolyte solution and a module including the lithium ion secondary cell.

Abstract: The present invention aims to provide an electrolyte solution for forming, for example, a secondary battery having excellent oxidation resistance and high-temperature storage characteristics; an electrochemical device such as a lithium-ion secondary battery that contains the electrolyte solution; and a module that contains the electrochemical device. The present invention provides an electrolyte solution containing a solvent and an electrolyte salt, wherein the solvent contains a fluorine-containing compound (A) represented by formula (1) shown below in an amount of 0.01 to 20% by mass, and a fluorine-containing compound (B) represented by formula (2) shown below in an amount of 10 to 80% by mass: Rf1OCOOR??(1) wherein Rf1 is a C1-C4 fluorine-containing alkyl group, and R is a C1-C4 non-fluorinated alkyl group, and Rf2OCOORf3??(2) wherein Rf2 and Rf3 are the same or different, and each is a C1-C4 fluorine-containing alkyl group.

Abstract: A LED illuminating device includes: a power source device, a controller, an LED lighting device, and an LED unit 4 incorporating LEDs of a plurality of emission colors. The device is configured to mix the lights of the LEDs at an arbitrary proportion and set the lights in an arbitrary color mixture proportion on the basis of a dimming signal from the controller. The device is further configured so that: a coefficient specific to the LED unit at which an emission color of the LED unit becomes a desired color can be set to a signal value of the controller preliminarily set as a standard. The LED lighting device can control an emission amount of the LEDs having the respective emission colors by using a value calculated by a calculation expression employing the specific coefficient.

Abstract: A LED illuminating device includes: a power source device, a controller, an LED lighting device, and an LED unit 4 incorporating LEDs of a plurality of emission colors. The device is configured to mix the lights of the LEDs at an arbitrary proportion and set the lights in an arbitrary color mixture proportion on the basis of a dimming signal from the controller. The device is further configured so that: a coefficient specific to the LED unit at which an emission color of the LED unit becomes a desired color can be set to a signal value of the controller preliminarily set as a standard. The LED lighting device can control an emission amount of the LEDs having the respective emission colors by using a value calculated by a calculation expression employing the specific coefficient.