Abstract: Disclosed are an aluminum-coated blank, a manufacturing method thereof, and an apparatus for manufacturing the same. The blank includes two or more aluminum-coated steel sheets connected together by a joint, each of the steel sheets including: a base steel sheet including 0.01-0.5 wt % of carbon, 0.01-1.0 wt % of silicon, 0.5-3.0 wt % of manganese, greater than 0 but not greater than 0.05 wt % of phosphorus, greater than 0 but not greater than 0.01 wt % of sulfur, greater than 0 but not greater than 0.1 wt % of aluminum, greater than 0 but not greater than 0.001 wt % of nitrogen, and the balance of iron and other inevitable impurities; and a coating layer including aluminum and formed on at least one surface of the base steel sheet.

Abstract: Provided are a separator coating composition for a secondary battery including inorganic particles and a silane salt compound having a specific structure, a separator using the same, and an electrochemical device including the same. Specifically, a separator coating composition for a secondary battery which implements adhesion between an inorganic material layer and a porous substrate without including an acid/polymer-based organic binder in a coating composition for forming the inorganic material layer on one or both surfaces of the porous substrate and does not need a separate dispersing agent for dispersing the inorganic particles, a separator manufactured using the same, and an electrochemical device including the separator are provided.

Abstract: Nickel-plated stainless steel sheets and a method of manufacturing the same are provided. Each of the nickel-plated stainless steel sheets includes a stainless steel base plate and a nickel plating layer formed on at least one surface of the stainless steel base plate by electroplating, in which the nickel plating layer includes a strike plating layer and a main plating layer which are sequentially laminated on the one surface of the stainless steel base plate.

Abstract: A method of preparing a nickel-plated heat-treated steel sheet having excellent workability. The method includes the steps of forming a nickel layer by electroplating at least one surface of a base steel sheet with nickel (Ni); and forming a nickel-iron (Ni-Fe) alloy layer between the base steel sheet and the nickel layer through diffusion heat treatment of the base steel sheet and the nickel layer. The nickel-plated heat-treated steel sheet has a superficial Rockwell hardness of 52 to 62.

Abstract: The present invention provides a nickel-plated and thermally-treated steel sheet with excellent corrosion resistance, in which a remaining nickel amount obtained by analyzing an nickel-iron alloy layer using energy dispersive spectrometry (EDS) or electron probe X-ray microanalysis (EPMA) after pure nickel remaining on the nickel-iron alloy layer was completely removed after the heat treatment for alloying of a nickel plated layer with base iron is 0.1 wt % or more to less than 30 wt % of the total amount of iron and nickel.

Abstract: The present invention provides a nickel-plated stainless steel sheet and a method of manufacturing the same. In one embodiment, the nickel-plated stainless steel sheet includes: a stainless steel base plate; and a nickel (Ni) plating layer formed on at least one surface of the steel base plate by electroplating, and the nickel plating layer includes a strike plating layer and a main plating layer which are sequentially laminated on the one surface of the steel base plate.

Abstract: A nickel-plated heat-treated steel sheet having excellent workability and a method of manufacturing the same. The nickel-plated heat-treated steel sheet includes: a base steel sheet; a nickel layer formed on one or both surfaces of the base steel sheet; and a nickel-iron (Ni—Fe) alloy layer formed between the base steel sheet and the nickel layer, and has a superficial Rockwell hardness of about 52 to about 62.

Abstract: The present disclosure provides a rotaxane polymer binder containing a polymer based on a rotaxane structure. The polymer binder may further contain a polymer cross-linked with a polar polymer. The polar polymer may be a polymer containing the element F, O or N in a functional group and having high polarity. In addition, the present disclosure provides an electrode containing the rotaxane polymer binder as a binder for a lithium secondary battery, and a secondary battery containing the electrode.

Abstract: Disclosed are an aluminum-coated blank, a manufacturing method thereof, and an apparatus for manufacturing the same. The blank includes two or more aluminum-coated steel sheets connected together by a joint, each of the steel sheets including: a base steel sheet including 0.01-0.5 wt % of carbon, 0.01-1.0 wt % of silicon, 0.5-3.0 wt % of manganese, greater than 0 but not greater than 0.05 wt % of phosphorus, greater than 0 but not greater than 0.01 wt % of sulfur, greater than 0 but not greater than 0.1 wt % of aluminum, greater than 0 but not greater than 0.001 wt % of nitrogen, and the balance of iron and other inevitable impurities; and a coating layer including aluminum and formed on at least one surface of the base steel sheet.

Abstract: The present invention provides a nickel-plated and thermally-treated steel sheet with excellent corrosion resistance, in which a remaining nickel amount obtained by analyzing an nickel-iron alloy layer using energy dispersive spectrometry (EDS) or electron probe X-ray microanalysis (EPMA) after pure nickel remaining on the nickel-iron alloy layer was completely removed after the heat treatment for alloying of a nickel plated layer with base iron is 0.1 wt % or more to less than 30 wt % of the total amount of iron and nickel.

Abstract: The present disclosure provides a rotaxane polymer binder containing a polymer based on a rotaxane structure. The polymer binder may further contain a polymer cross-linked with a polar polymer. The polar polymer may be a polymer containing the element F, O or N in a functional group and having high polarity. In addition, the present disclosure provides an electrode containing the rotaxane polymer binder as a binder for a lithium secondary battery, and a secondary battery containing the electrode.

Abstract: A semiconductor memory device includes a plurality of banks; a counting block suitable for counting the activation number of the respective banks, and selecting a bank of which the activation number is larger than or equal to a given number; and a refresh control block suitable for performing a normal refresh operation on the banks in response to a refresh command, and performing an additional refresh operation N times on the selected bank, N being a positive integer.

Abstract: A semiconductor memory device includes a plurality of banks; a counting block suitable for counting the activation number of the respective banks, and selecting a bank of which the activation number is larger than or equal to a given number; and a refresh control block suitable for performing a normal refresh operation on the banks in response to a refresh command, and performing an additional refresh operation N times on the selected bank, N being a positive integer.

Abstract: A polymer electroluminescent device is provided. The device includes an anode, a light-emitting layer, a cation-containing water-soluble polymer layer and a cathode formed in this order on a substrate wherein the cation-containing water-soluble polymer layer is formed by wet coating. The cation-containing water-soluble polymer layer as a secondary thin film layer is not dissolved in a solvent for the formation of the underlying light-emitting layer to prevent intermixing between the two layers, thereby enabling the formation of a multilayer structure by wet coating. In addition, the cation-containing water-soluble polymer layer attracts electrons injection from the cathode by an attractive Coulomb force to effectively increase the mobility of the electrons while blocking high-mobility holes from the anode at an interface between the light-emitting layer and the water-soluble layer. Further provided is a method for fabricating the electroluminescent device.

Abstract: A polymer electroluminescent device is provided. The device comprises an anode, a light-emitting layer, a cation-containing water-soluble polymer layer and a cathode formed in this order on a substrate wherein the cation-containing water-soluble polymer layer is formed by wet coating. The cation-containing water-soluble polymer layer as a secondary thin film layer is not dissolved in a solvent for the formation of the underlying light-emitting layer to prevent intermixing between the two layers, thereby enabling the formation of a multilayer structure by wet coating. In addition, the cation-containing water-soluble polymer layer attracts electrons injection from the cathode by an attractive Coulomb force to effectively increase the mobility of the electrons while blocking high-mobility holes from the anode at an interface between the light-emitting layer and the water-soluble layer. Further provided is a method for fabricating the electroluminescent device.

Abstract: An initialization signal generating circuit includes a voltage distributor, a first initialization signal generator, a second initialization signal, and a controller. The voltage distributor outputs a voltage signal in response to an external voltage. The first initialization signal generator outputs a first initialization signal in response to the voltage signal output from the voltage distributor. The second initialization signal generator outputs a second initialization signal in response to the voltage signal output from the voltage distributor. The controller blocks the external voltage supplied to the voltage distributor and the first and second initialization signal generators, in response to the first and second initialization signals.

Abstract: A semiconductor memory integrated circuit for controlling a refresh operation includes: a first period generating unit that generates a first periodic signal having an uniformed period; a second period generating unit that generates a second periodic signal according to a first control signal; a period generation control unit that generates a timing signal for every predetermined period; a frequency dividing unit that divides the frequency of the first periodic signal into at least one frequency-divided periodic signals; and a period selection control unit that controls the operation of the second period generating unit according to the at least one frequency-divided periodic signals and the second periodic signal, determines temperature, and outputs one of the frequency-divided periodic signals corresponding to the determined temperature as a refresh signal.

Abstract: An initialization signal generating circuit includes a voltage distributor, a first initialization signal generator, a second initialization signal, and a controller. The voltage distributor outputs a voltage signal in response to an external voltage. The first initialization signal generator outputs a first initialization signal in response to the voltage signal output from the voltage distributor. The second initialization signal generator outputs a second initialization signal in response to the voltage signal output from the voltage distributor. The controller blocks the external voltage supplied to the voltage distributor and the first and second initialization signal generators, in response to the first and second initialization signals.

Abstract: A semiconductor memory integrated circuit for controlling a refresh operation includes: a first period generating unit that generates a first periodic signal having an uniformed period; a second period generating unit that generates a second periodic signal according to a first control signal; a period generation control unit that generates a timing signal for every predetermined period; a frequency dividing unit that divides the frequency of the first periodic signal into at least one frequency-divided periodic signals; and a period selection control unit that controls the operation of the second period generating unit according to the at least one frequency-divided periodic signals and the second periodic signal, determines temperature, and outputs one of the frequency-divided periodic signals corresponding to the determined temperature as a refresh signal.

Abstract: A semiconductor memory device including an internal clock doubler including an internal clock doubler for doubling an external clock signal in a read mode to output a double clock signal in response to a plurality of external control signals, and delaying the external clock signal to output a clock control signal; a sense amplifier control signal generator for receiving the clock control signal and a standby signal of the plurality of external control signals signals which represents an output state of data to generate a plurality of sense amplifier control signals for controlling output of output data of a sense amplifier; a sense amplifier output unit for outputting output data of the sense amplifier in response to the plurality of sense amplifier control signals; and an output buffer unit for outputting output data of the sense amplifier synchronously with respect to the double clock signal in response to the standby signal when data are outputted.