摘要:
An X-ray detector includes a first substrate having a bottom surface on which a first electrode is formed. A second substrate has a top surface on which a second electrode and a polyimide layer are sequentially formed. A photoconductive layer is formed on a bottom surface of the first electrode and generates electron-hole pairs. A reflective layer is formed on a bottom surface of the photoconductive layer. A liquid crystal polymer layer is formed on a bottom surface of the reflective layer, and peaks and valleys are alternately formed on a bottom surface of the liquid crystal polymer layer. A liquid crystal layer is formed between the liquid crystal polymer layer and the polyimide layer, and liquid crystal molecules are aligned in a direction in which the peaks and valleys on the bottom surface are arranged.
摘要:
Disclosed are a beam scanner and a surface measurement apparatus. The beam scanner includes a spinning mirror having top and bottom reflective surfaces and a plurality of side reflective surfaces between the top and bottom reflective surfaces, and rotating about a rotary shaft penetrating the top and bottom reflective surfaces to scan beams, falling onto the side reflective surface, in one direction, a first light source emitting first beams to the side reflective surface, a second light source emitting second beams to at least one of the top and bottom reflective surfaces, and a detector receiving beams reflected by the spinning mirror, among the second beams. The beam scanner and the surface measurement apparatus can achieve high-speed, high resolution surface measurement since errors caused by the movement of the spinning mirror for beam scanning are minimized.
摘要:
Disclosed are a method and system for evaluating current spreading of a light emitting device. The method includes applying current to a light emitting device and acquiring a luminescence image corresponding to a digital signal, converting the luminescence image into a gray image, and determining the number of pixels having gray levels greater than a set threshold among pixels included in the luminescence image converted into the gray image, as a criterion for determining the degree of current spreading of the light emitting device.The luminescent area of the light emitting device is quantified as an objective value on the two-dimensional plane by using an image processing technique, so that the degree of current spreading in the light emitting device can be evaluated.
摘要:
The present invention relates to an electric double layer capacitor in which particle sizes of a cathode active material and an anode active material are different from each other, and a difference in the particle size between the cathode active material and the anode active material is 3 to 10 μm; or conductive agent contents in electrode active material compositions of a cathode and an anode are different from each other, and a difference in the conductive agent content between the electrode active material compositions of the cathode and the anode is 5 to 25 wt %.
摘要:
There is provided an electric double layer capacitor package and a method of manufacturing the same. The electric double layer capacitor package includes an exterior case formed of insulating resin and having therein one or more partitions providing a plurality of housing spaces; a plurality of capacitor cells disposed in the plurality of housing spaces, respectively, each capacitor cell including first and second electrodes and a separator interposed between the first and second electrodes; and an internal series-connection terminal buried in each of the partitions and connecting the plurality of capacitor cells in series.
摘要:
The present invention relates to an electrode for an energy storage and a method for manufacturing the same and provides a useful effect of improving resistance characteristics of an electrode for an energy storage by forming a trench of predetermined dimensions on a surface of a current collector, forming a conductive layer, which includes a conductive agent as much as possible, on the surface of the current collector, and forming an electrode layer including an electrode active material, a conductive agent, and a binder on the conductive layer.
摘要:
A metal current collector including a metal substrate having grooves formed along a triple junction line of a surface thereof and a conductive layer formed on the metal substrate, a method for preparing the same, and electrochemical capacitors with same. A metal current collector including a metal substrate having grooves formed along a triple junction line of a surface thereof and a conductive layer formed on the metal substrate has a large surface area and low electrical resistance. This metal current collector can be effectively used in electrochemical capacitors with high capacity and high output characteristics by improving contact characteristics with an active material layer.
摘要:
The present invention relates to a metal current collector including a metal substrate having grooves on a surface thereof, a carbon buffer layer formed on the metal substrate, and a conductive layer formed on the carbon buffer layer, a method for preparing the same, and electrochemical capacitors comprising the same. According to the present invention, a metal current collector including a metal substrate having grooves on a surface thereof, a carbon buffer layer formed on the metal substrate, and a conductive layer formed on the carbon buffer layer has a large surface area and low electrical resistance. This metal current collector can be effectively used in electrochemical capacitors with high capacity and high output characteristics by improving contact characteristics with an active material layer.
摘要:
A method for manufacturing a lithium ion capacitor, and a lithium ion capacitor manufactured using the method are provided. The method for manufacturing a lithium ion capacitor includes: disposing a lithium metal on a capacitor cell including a cathode, a separation film, and an anode; impregnating the capacitor cell with electrolyte including a lithium salt; changing the cathode and the anode to allow lithium ions within the electrolyte to be occluded into the anode; performing a primary reaction in which the cathode and the lithium metal are short-circuited to emit anions from the cathode and lithium ions from the lithium metal and a secondary reaction that the lithium ions emitted from the lithium metal are occluded into the cathode; and recharging the cathode and the anode to allow the lithium ions, which have been occluded into the cathode and the lithium ions within the electrolyte, to be occluded into the anode.
摘要:
Disclosed herein are a lithium plate, a method for lithiation of an electrode, and an energy storage device. According to an exemplary embodiment of the present invention, there is provided a lithium plate used for lithium pre-doping of an electrode for an energy storage device, including: a contact area contacting the electrode at the time of the pre-doping; and a plurality of through holes or a plurality of grooves regularly distributed to be adjacent to the contact area so that an electrolytic solution gains easy access to the vicinity of a contact boundary of the contact area and the electrode at the time of the pre-doping. In addition, a method for lithiation of an electrode for an energy storage device using the above-mentioned lithium plate and an energy storage device including a negative electrode (anode) lithiated according to the method have been proposed.