摘要:
Refined ethylene sulfite exhibits an excellent storage stability when used as a constituent of an electrolyte. A method of producing same has a step of reacting ethylene glycol and thionyl chloride to producing raw ethylene sulfite, a rectifying step for rectifying the raw ethylene sulfite, and a refining process for refining the raw ethylene sulfite or the rectified ethylene sulfite conducted before or after the rectifying step. The refining process is at least one process selected from the group consisting of a washing process, a dehydration process by total reflux distillation, a second rectifying process, and an absorbing process. Refined ethylene sulfite produced according to the method contains chloroethanol in an amount of not more than 1000 ppm.
摘要:
Refined ethylene sulfite exhibits excellent storage stability when used as a constituent of an electrolyte. Ethylene sulfite is formed by a step of reacting ethylene glycol and thionyl chloride to producing raw ethylene sulfite, a rectifying step for rectifying the raw ethylene sulfite, and a refining process for refining the raw ethylene sulfite or the rectified ethylene sulfite conducted before or after the rectifying step. The refining process is at least one process selected from the group consisting of a washing process, a dehydration process by total reflux distillation, a second rectifying process, and an absorbing process. Refined ethylene sulfite contains chloroethanol in an amount of not more than 1000 ppm.
摘要:
An electrolyte for a lithium battery contains ethylene sulfite, which includes chloroethanol in an amount of not more than 1000 ppm. A lithium battery includes an electrolyte, which contains chloroethanol in an amount of not more than 1000 ppm.
摘要:
An automatic ice maker in an ice making compartment of a refrigerator includes an ice tray placed in the ice making compartment, a temperature sensing element for sensing the temperture of the ice tray, an ice removing driver for driving the ice tray so that ice is removed from it, and a controller for controlling the ice removing driver. The controller initiates one or more timing operations when the temperature sensed by the temperature sensing element falls to or below one of a plurality of set temperatures. When one of these timing operations runs to completion, the system determines that the ice making operation has been completed. The time period corresponding to each set temperature decreases with decreasing set temperatures.
摘要:
An optical semiconductor relay comprises a light emitting element converting an electrical signal into an optical signal, a first photodiode array receiving the optical signal from the light emitting element. The first photodiode array converts the optical signal into an electrical signal. The relay is further provided with a first diode having one electrode connected to one end of the first photodiode array and a MOSFET. The MOSFET has a gate terminal connected to other electrode of the first diode, and a source terminal connected to other end of the first photodiode array. A second photodiode array is arranged to receive the optical signal from the light emitting element. The second photodiode array converts the optical signal into an electrical signal and has both ends connected to the respective electrodes of the first diode. A control circuit connected between the gate and source terminals of the MOSFET.
摘要:
An up-drain type MOSFET device is formed in a limited n+ diffusion region used for an up-drain structure with the reduction of increase in a chip area which would otherwise be required for such device. Trench 112 is made separately from device regions provided in n−-type exitaxial layer 101. Trench 112 reaches to n+ implanted layer 111 while deeply diffused n+ region 110 is formed along a sidewall of trench 112 by applying slant implantation thereby to form an up-drain structure.