Abstract: Provided is a battery. The battery includes an electrode assembly including a first electrode plate, a separator, and a second electrode plate, a first current collector plate contacting a bottom surface of the electrode assembly, and electrically connected to the first electrode plate, a second current collector plate contacting a top surface of the electrode assembly, and electrically connected to the second electrode plate, a case for accommodating the electrode assembly, the first current collector plate, and the second current collector plate, and electrically connected to the second current collector plate, and a cap plate for sealing an upper portion of the case, wherein the second current collector plate includes a body part coupled to the second electrode plate, and a wing part fixed to the body part and the case.

Abstract: In one example, a system can receive an input from a user indicating a target variable to be forecasted over a future time window. The system can then determine independent variables that influence the target variable and generate a set of candidate variables, including combinations of the independent variables. The system can then execute a random forest classifier to identify a subset of candidate variables having a threshold level of influence on the target variable. The system can then construct a machine-learning model configured to receive the identified subset of candidate variables as inputs and generate a forecast of the target variable. After constructing the machine-learning model, the system can train the machine-learning model using historical data and then execute the machine-learning model to generate the forecast.

Abstract: Embodiments of the present disclosure relate to a cylindrical secondary battery that facilitates gas discharge by causing a bent shape of a cap plate to be deformed and broken if a temperature of a cell increases, such as due to an event. In one or more embodiments, a secondary battery includes: an electrode assembly; a case including a top end open to accommodate the electrode assembly; and a cap plate coupled to the top end of the case, and the cap plate includes a central region, an edge region, a bent portion between the central region and the edge region, and a vent portion including a notch configured to be broken by a certain pressure.

Abstract: A secondary battery includes: an electrode assembly; a can having a lower surface and a side surface and accommodating the electrode assembly; a cap plate coupled to an upper end of the can; a terminal on the lower surface of the can; and an insulator having a plate-shaped portion and an extending portion extending upwardly from a circumference of the plate-shaped portion. The plate-shaped portion is between the electrode assembly and the lower surface of the can, and the extending portion has an upper end contacting a lower portion of the electrode assembly.

Abstract: The present exemplary embodiments propose a fiber-based strain sensor including: at least one first electric conductive line including a first flexible part having electric conductivity and at least one second electric conductive line which is woven to be in partially contact with the first electric conductive line, includes a second flexible part having electric conductivity, and is implemented to conduct electricity with the first flexible part having electric conductivity in a stretched state.

Abstract: A memory device and an operating method of the memory device are provided. The operating method comprises receiving an activation-refresh command from a memory controller, decoding a target address and an internal command from the activation-refresh command, and performing an activation operation based on the internal command for the target address and performing a refresh operation on at least one block to which the target address does not belong.

Abstract: A secondary battery includes: a can having an accommodation space therein; an electrode assembly accommodated in the accommodation space in the can; and a cap assembly sealed with the can. The can has a beading part recessed into a side wall of the can at a region below where the cap assembly is accommodated, and the beading part has an acute angle with respect to the side wall of the can.

Abstract: A fuel cap for a vehicle has a locking structure configured to generate a sound interval, including a head portion having a handle formed at a first side and one or more striking portions installed at a second side, and a body portion integrally assembled with the head portion and having a plurality of sound generators installed at the body portion and disposed in a state of being struck by the one or more striking portions installed at the second side of the head portion according to a rotation of the head portion by a locking torque.

Abstract: A capless filler neck structure including a filler tube configured to be fixed into a vehicle and define a transfer passage for fuel to be transferred to a fuel tank of the vehicle, a first retainer fitted into the filler tube, a first flapper positioned adjacent to the first retainer to be sealed from the outside, a second retainer positioned adjacent to the first retainer and fitted into the filler tube, a cover fitted to the second retainer to define an opening configured to receive a fuel gun, a second flapper positioned adjacent to the second retainer to be sealed from the outside, and an anti-error-injection member fitted to the second retainer and configured to be unlatched when the fuel gun having a predetermined diameter or more is inserted.

Abstract: A cylindrical secondary battery includes: a cylindrical can having a circular bottom portion, a side portion extending from the bottom portion, a beading part concavely formed inwardly at one end of the side portion, and a crimping part formed by bending a distal end of the side portion; an electrode assembly in the can; and a cap assembly sealing the can. The cap assembly includes a gasket for insulation from the can, and an upper portion of the gasket in a direction away from the electrode assembly has a smaller thickness than a lower portion of the gasket.

Abstract: A secondary battery is provided in which a first electrode (negative electrode) terminal and a second electrode (positive electrode) terminal may be concurrently (e.g., simultaneously) implemented in a cap assembly. A secondary battery includes: a case including a beading part and a crimping part; an electrode assembly physically coupled to the case and including a first electrode plate and a second electrode plate, the first electrode plate being electrically connected to the case; a first insulating gasket between the beading part and the crimping part; a cap plate coupled between the beading part and the crimping part through the first insulating gasket; a second insulating gasket extending through and coupled to the cap plate; and a rivet terminal extending through and physically coupled to the second insulating gasket, wherein the rivet terminal is electrically connected to the second electrode plate of the electrode assembly.

Abstract: A fuel cap for a vehicle has a locking structure configured to generate a sound interval, including a head portion having a handle formed at a first side and one or more striking portions installed at a second side, and a body portion integrally assembled with the head portion and having a plurality of sound generators installed at the body portion and disposed in a state of being struck by the one or more striking portions installed at the second side of the head portion according to a rotation of the head portion by a locking torque.

Abstract: A fuel cap for a vehicle has a locking structure configured to generate a sound interval, including a head portion having a handle formed at a first side and one or more striking portions installed at a second side, and a body portion integrally assembled with the head portion and having a plurality of sound generators installed at the body portion and disposed in a state of being struck by the one or more striking portions installed at the second side of the head portion according to a rotation of the head portion by a locking torque.

Abstract: A secondary battery, includes an electrode assembly including a first electrode plate, a second electrode plate, and a separator wherein the electrode assembly is wound; a can for accommodating the electrode assembly and an electrolyte; a finishing tape including a film layer comprising a nylon material and an adhesive layer for attaching the film layer to the electrode assembly, wherein the finishing tape at least partially surrounds the electrode assembly; and a cap assembly that seals the can.

Abstract: A full charge notification device of a urea water tank for a vehicle is provided. The device is configured to generate a predetermined sound when urea water is normally injected into the urea water tank before a full state, to provide a notification to a user of a full state of the urea water tank through non-generation of the sound.

Abstract: A diesel exhaust fluid (DEF) cap assembly for a vehicle includes: a body having a first opening and a second opening arranged at an opposite side of the first opening, the second opening configured to be opened and closed; a flange portion protruding radially outward between the first opening and the second opening of the body, and having a plurality of through holes and a flange gasket configured to be sealably coupled to a mounting subject on which the flange portion is mounted; and a membrane member coupled to the flange portion, and configured to cover the plurality through holes and allow air flow.

Abstract: A memory device and an operating method of the memory device are provided. The operating method comprises receiving an activation-refresh command from a memory controller, decoding a target address and an internal command from the activation-refresh command, and performing an activation operation based on the internal command for the target address and performing a refresh operation on at least one block to which the target address does not belong.

Abstract: An opening device for a urea water inlet may include a first body configured to be provided on an external side of an inlet of a urea filler neck; a second body disposed at an upper end portion of the first body with a ventilation gap between the first body and the second body, and provided with an internal space to be disposed above the inlet; a cover disposed at an upper end portion of the second body, and configured to receive a force to open the internal space of the second body; an opener provided in the second body, and configured to hold the cover at the upper portion of the second body when the cover is configured to close the internal space, and to release holding of the cover when being pressed toward an interior of the second body; and a membrane disposed between the first body and the second body to pass only air therethrough while covering the ventilation gap.

Abstract: A vent valve for a closed tank, the vent valve being provided in an upper surface of the closed tank storing liquid, may include an upper housing provided with an upper air hole disposed outside the closed tank; a lower housing provided with a lower air hole disposed inside the closed tank; and a valve core provided in a housing space area surrounded by the upper housing and the lower housing and providing a ventilation path through which only gas passes between the upper air hole and the lower air hole.

Abstract: A diesel exhaust fluid (DEF) cap assembly for a vehicle includes: a body having a first opening and a second opening arranged at an opposite side of the first opening, the second opening configured to be opened and closed; a flange portion protruding radially outward between the first opening and the second opening of the body, and having a plurality of through holes and a flange gasket configured to be sealably coupled to a mounting subject on which the flange portion is mounted; and a membrane member coupled to the flange portion, and configured to cover the plurality through holes and allow air flow.