Abstract:
The present invention relates to a positive electrode containing a metal chloride and an alkali metal chloride and an alkali metal-ion secondary battery including the same. The alkali metal-ion secondary battery according to the present invention includes a negative electrode, a positive electrode containing a metal chloride and an alkali metal chloride, and a sulfur dioxide-based inorganic electrolyte solution containing an inorganic electrolyte including sulfur dioxide (SO2) and an alkali metal salt. As the alkali metal-ion secondary battery according to the present invention uses a mixture of the metal chloride and the alkali metal chloride as a positive electrode material, and an alkali-ion electrolyte as a sulfur dioxide-based inorganic electrolyte, compared to the conventional sodium-ion secondary battery, the alkali metal-ion secondary battery can be used at room temperature and pre-charged, and have improved energy density and power density.
Abstract:
A method for forming a wiring for a semiconductor device according to an aspect of the present invention includes: forming a predetermined pattern on a first surface of a silicon substrate by selectively etching the first surface; coating, with a metal layer, a selected area of the first surface, including an area whereat the predetermined pattern is formed; forming organic material in the first surface to fill an etched portion and cover the coated metal layer; forming a plurality of via holes in the organic material and connecting the metal wiring to the coated metal layer through the via holes; and grinding a second surface corresponding to the first surface to remove a part of the metal layer formed in the etched portion.
Abstract:
The present invention relates to a cathode material for a nonaqueous lithium secondary battery using spherical cobalt hydroxide to inhibit the structural collapse of a final cathode material at a high voltage by preparing spherical cobalt hydroxide in which a dissimilar metal is uniformly substituted by using a precipitation reaction in a liquid phase, thereby improving lifetime characteristics even under high voltage charge/discharge conditions of 4.5 V. According to the present invention, it is possible to prepare spherical cobalt hydroxide having a particle size of 15-30 μm by precipitating a cobalt material, a hydroxyl group material, a dissimilar metal material for substitution and an amine-based material so as to have a composition represented by Co1-xMx(OH)2 (0.00≦x≦0.10, M=Al, Mg, Ti, and the like). Also, it is possible to prepare spherical cobalt oxide having a particle size of 10-25 μm by heat-treating the prepared cobalt hydroxide at 500-800° C.
Abstract:
The present invention relates to a method for providing a user interface using a one-point touch capable of immediately carry out various user commands by changing the direction of force applied to a fixed contact point, and to an apparatus for same, wherein when contact on one point inside a touch area is sensed, the direction of force applied to the point or a pattern with respect to a change in the direction of the force is detected while the contact is maintained on the one point, and a predetermined user command is carried out according to the direction of the force or the pattern with respect to the change in the direction of the force.
Abstract:
The present invention relates to a cathode active material for a lithium secondary battery and a preparation method thereof, and particularly, to a cathode active material for a lithium secondary battery having improved battery characteristics because of manganese phosphate uniformly coated on the surface of a Ni-rich cathode active material, and a preparation method thereof.According to the present invention, because manganese phosphate is uniformly coated on the surface of the Ni-rich cathode active material, a side reaction of the electrolyte is inhibited and a lithium secondary battery having excellent power characteristics, high temperature cycle life characteristics, and thermal stability can be prepared.
Abstract:
A method of providing a context based service is performed by a user terminal. The method includes: generating a user profile about at least one entity; providing user profile characteristic information obtained or inferred from the user terminal associated with the at least one entity; and controlling to provide a user description generated based on the user profile and the user profile characteristic information to a recommendation engine for a required service if a recommendation of a context based service is required to the at least one entity, the recommendation engine performing a service recommendation according to a situation of the at least one entity.
Abstract:
Provided herein is an energy resource management method and system, the method including registering energy resources; clustering the registered energy resources, and generating a plurality of resource groups; granting priorities of the resource groups; and operating the resource groups according to the priorities, thereby reducing an operation load occurring in proportionate to a quantitative increase and complexity and diversity increase of the resources, enabling efficient and economical management of the distributed energy resources.
Abstract:
The present invention relates to an energy conversion device using a liquid and, more specifically, to a method and a device for converting mechanical energy into electrical energy by applying an opposite phenomenon to an electrowetting phenomenon. The contact surface with liquid is being changed within a pair of electrodes, and the resulting change in the contact surface with liquid is being utilized for generating electrical energy. The device can be simplified and the manufacturing cost thereof is being reduced, furthermore it is effective in implementing an energy conversion device that is less faulty, by preventing channel blocking phenomenon and not requiring a lubricating layer or an electrode complicatedly patterned on a channel. Besides, it is advantageous in that a flexible device can be realized and a large area application is facilitated by simplifying the device structure.
Abstract:
A method for receiving a context based service includes: providing a user identifier (ID) to a service provider, the user ID being used for a recommendation of a service by a recommendation engine using a decision model; and receiving a recommended service from the service provider, the recommended service being recommended through a recommendation description (RD), the RD determined by the recommendation engine based on the decision model and at least one of a user description (UD) and a context description (CD) being obtained through the user ID.
Abstract:
Provided is a method for automatically obtaining position information of virtual resources such as a network device in a virtual space such as a house, an office, and the like. The method for mapping position information of a virtual resource includes recognizing virtual resources virtualized according to services or characteristics unique to devices in a particular space, and collecting virtual resource information including internal states and providing services of the virtual resources, obtaining event occurrence information regarding the virtual resources by using the virtual resource information, when an event occurs in at least any one among the virtual resources, obtaining image information regarding the particular space, and obtaining position information regarding the virtual resources by using the event occurrence information and the image information.