摘要:
A jelly-roll type battery unit, a winding method thereof and a lithium secondary battery comprising the battery unit include a first electrode plate having a first electrode current collector with a first electrode tab and a first electrode active material layer coated on at least one surface of the first electrode current collector, a second electrode plate having a second electrode current collector with a second electrode tab and a second electrode active material layer coated on at least one surface of the second electrode current collector, and a separator that is interposed between the first electrode plate and the second electrode plate, wherein the electrode tab is incorporated into the electrode current collector in an area of either the first or the second electrode plate where the corresponding electrode active material layer is not coated. Since an electrode tab is formed by cutting a portion of an electrode current collector and folding upward, deformation of a jelly-roll type battery unit is prevented.
摘要:
A battery including a battery case, an electrode assembly disposed in the battery case, the electrode assembly including a winding of a first electrode plate, a second electrode plate and a separator, wherein the separator is interposed between the first and second electrode plates, a cap assembly covering the battery case, and a member configured to prevent a short circuit of the electrode assembly.
摘要:
A method of recognizing proximity using a proximity sensor and a mobile terminal using the same are provided. The method includes detecting a key input by a user, projecting light in a state where an object does not approach a proximity sensor and measuring a light receiving amount of the projected light, extracting a compensation amount corresponding to the measured light receiving amount, setting a critical light receiving amount for determining proximity recognition by compensating the measured light receiving amount with the extracted compensation amount, and recognizing proximity of an object to the proximity sensor based on a preset critical light receiving amount. Thereby, even if the surrounding environment of a mobile terminal is changed, noise characteristic of the proximity sensor is influenced, and the mobile terminal is used for a long time, a proximity recognition distance of the mobile terminal is uniformly sustained.
摘要:
The embodiment relates to a refrigerator, a refrigerator according to the embodiment includes: a refrigerating compartment above the freezing temperature; a freezing compartment below the freezing temperature; a mullion that partitions the refrigerating compartment and the freezing compartment side by side; a cold air supplying portion that forms within the mullion and includes an evaporator and a cooling fan; and an ice making apparatus that is disposed at the mullion, the ice making apparatus making cold air supplying portion ice by receiving cold air generated by the evaporator.
摘要:
A can for a lithium secondary battery and a lithium secondary battery using the same, where guide slots are formed in a bottom wall and a sidewall of the can of the lithium secondary battery so that the can is symmetrically bent about a longitudinal axis thereof when the lithium secondary battery is compressed in a direction orthogonal to the longitudinal axis, thus preventing a short circuit from occurring between electrode plates of the of the electrode assembly located within the can resulting in improved safety of the lithium secondary battery. Alternatively, embossing portions are formed in a bottom wall of the can for the lithium secondary battery while protruding toward an inner portion of the can, so that the bottom wall of the can is outwardly bent when the lithium secondary battery is subject to compression in a direction orthogonal to the longitudinal axis, resulting in improved safety of the lithium secondary battery.
摘要:
An electrode unit and a secondary battery having the electrode unit include a first electrode plate having a first electrode uncoated portion on at least one side of a first electrode collector coated with at least a first electrode active material, a second electrode plate having a second electrode uncoated portion on at least one side of a second electrode collector coated with at least a second electrode active material, and a separator interposed between the first electrode plate and the second electrode plate, wherein an insulating separator having at least two folds is located between the first electrode uncoated portion and the second electrode uncoated portion.
摘要:
A method of recognizing proximity using a proximity sensor and a mobile terminal using the same are provided. The method includes detecting a key input by a user, projecting light in a state where an object does not approach a proximity sensor and measuring a light receiving amount of the projected light, extracting a compensation amount corresponding to the measured light receiving amount, setting a critical light receiving amount for determining proximity recognition by compensating the measured light receiving amount with the extracted compensation amount, and recognizing proximity of an object to the proximity sensor based on a preset critical light receiving amount. Thereby, even if the surrounding environment of a mobile terminal is changed, noise characteristic of the proximity sensor is influenced, and the mobile terminal is used for a long time, a proximity recognition distance of the mobile terminal is uniformly sustained.
摘要:
A can for a lithium secondary battery and a lithium secondary battery using the same, where guide slots are formed in a bottom wall and a sidewall of the can of the lithium secondary battery so that the can is symmetrically bent about a longitudinal axis thereof when the lithium secondary battery is compressed in a direction orthogonal to the longitudinal axis, thus preventing a short circuit from occurring between electrode plates of the of the electrode assembly located within the can resulting in improved safety of the lithium secondary battery. Alternatively, embossing portions are formed in a bottom wall of the can for the lithium secondary battery while protruding toward an inner portion of the can, so that the bottom wall of the can is outwardly bent when the lithium secondary battery is subject to compression in a direction orthogonal to the longitudinal axis, resulting in improved safety of the lithium secondary battery.
摘要:
A double plug head for plugging a pipe. The double plug head includes a primary rubber packing, a roller support, a tube support and a rubber tube. The primary rubber packing is provided on a mounting plate of a plugging machine. The roller support is provided with a plurality of rollers. The tube support is provided between the primary rubber packing and the roller support. A tube seating depression is formed around the circumferential surface of the tube support. A fluid feed path is formed in the tube support. The rubber tube is seated into the tube seating depression and has a nipple connected to an outlet of the fluid feed path. Communication holes which communicate with the fluid feed path are respectively formed in the primary rubber packing and the mounting plate. A fluid hose is connected to the communication hole of the mounting plate.
摘要:
A lithium battery which has an anode, a cathode having a compound capable of intercalating and deintercalating lithium, a separator interposed between the cathode and the anode, and an electrolyte solution having an electrolyte solute dissolved in a nonaqueous solvent. The nonaqueous solvent includes a mixed solvent containing 8 to 15% by volume of ethylene carbonate, 10 to 35% by volume of γ-butyrolactone, 35 to 65% by volume of at least one linear carbonate selected from the group consisting of dimethyl carbonate, diethyl carbonate, ethylmethyl carbonate, methylpropyl carbonate, ethylpropyl carbonate and methylbutyl carbonate and 8 to 15% by volume of fluorobenzene, and 0.5 to 9 parts by volume of vinylene carbonate based on 100 parts by volume of the mixed solvent. The nonaqueous solvent may further include 0.05 to 5 parts by volume of vinyl sulfone, isooxazole or a mixture thereof based on 100 parts by volume of the mixed solvent.