Abstract: An exemplary embodiment of the present disclosure provides a rechargeable battery including: an electrode assembly that includes a first electrode, a second electrode, and a separator interposed between the first electrode and the second electrode; a case that accommodates the electrode assembly, in one lateral surface of which a hole is formed, and that includes an opening formed in another lateral surface facing the one lateral surface; a sealing portion that is connected to the hole and seals the hole so that a lateral surface of the case is flattened; a cap plate combined with the opening; and a second terminal that is connected to the second electrode and is protruded outside the case while passing through the cap plate, wherein the hole may have a shape recessed toward the electrode assembly with respect to a surface of the case.

Abstract: A rechargeable battery includes: an electrode assembly including a first electrode and a second electrode; a case accommodating the electrode assembly; a first terminal electrically coupled to the first electrode, and a second terminal electrically coupled to the second electrode; a cap plate combined to the case and having a short-circuit hole formed therein; a membrane fixed to the cap plate and arranged in the short-circuit hole, the membrane being deformable to short-circuit the first electrode and the second electrode; and a short-circuit protrusion electrically coupled to the second electrode and arranged above the membrane to protrude theretoward, the short-circuit protrusion being arranged toward a side from a center of the short-circuit hole.

Abstract: A rechargeable battery includes: a case accommodating an electrode assembly; a cap plate coupled to the case at an opening thereof; an electrode terminal electrically connected to the electrode assembly and on the cap plate; and a top plate between the electrode terminal and the cap plate, wherein the top plate and/or the electrode terminal has a slanted side at a lower side thereof facing the cap plate.

Abstract: A ripple current sensing type motor controlling apparatus includes: an H bridge circuit switched depending on at least one control; a first resistor of which one end is connected to one end of the motor through the H bridge circuit and the other end is connected to a ground; a second resistor of which one end is connected to the other end of the motor through the H bridge circuit and the other end is connected to one end of the first resistor and is connected to one end of the motor through the H bridge circuit; and a controller calculating a RPM of the motor using a voltage across the first resistor in the case in which the driving power is applied to the motor and calculating the RPM of the motor using a voltage across the second resistor in the case in which the driving power is blocked.

Abstract: A rechargeable battery includes an electrode assembly including a first electrode, a second electrode, and a separator between the first electrode and the second electrode, a case accommodating the electrode assembly, a cap plate coupled to the case, a first current collector coupled to the first electrode of the electrode assembly, and a first terminal assembly. The first terminal assembly includes a first terminal coupled to the first current collector and having a first fixed groove or a first fixed protrusion, and a second terminal having a second fixed groove coupled to the first fixed protrusion or a second fixed protrusion coupled to the first fixed groove.

Abstract: A rechargeable battery includes a conductive case including a bottom part and a wall part extending from a periphery of the bottom part, an electrode assembly including a positive electrode and a negative electrode, and accommodated in the case, a cap plate opposite to the bottom part and electrically connected to the case, a positive terminal fixed to the cap plate and electrically connected to the cap plate, a negative terminal fixed to the cap plate and electrically insulated from the cap plate, a positive electrode tab extending from the positive electrode and electrically connected to the bottom part, and a negative electrode tab extending from the negative electrode, facing the positive electrode tab, and electrically connected to the negative terminal, wherein a length of the cap plate in a first direction is less than a height of the wall part in a second direction.

Abstract: A ripple current sensing type motor controlling apparatus includes: an H bridge circuit switched depending on at least one control; a first resistor of which one end is connected to one end of the motor through the H bridge circuit and the other end is connected to a ground; a second resistor of which one end is connected to the other end of the motor through the H bridge circuit and the other end is connected to one end of the first resistor and is connected to one end of the motor through the H bridge circuit; and a controller calculating a RPM of the motor using a voltage across the first resistor in the case in which the driving power is applied to the motor and calculating the RPM of the motor using a voltage across the second resistor in the case in which the driving power is blocked.

Abstract: A rechargeable battery includes a conductive case including a bottom part and a wall part extending from a periphery of the bottom part, an electrode assembly including a positive electrode and a negative electrode, and accommodated in the case, a cap plate opposite to the bottom part and electrically connected to the case, a positive terminal fixed to the cap plate and electrically connected to the cap plate, a negative terminal fixed to the cap plate and electrically insulated from the cap plate, a positive electrode tab extending from the positive electrode and electrically connected to the bottom part, and a negative electrode tab extending from the negative electrode, facing the positive electrode tab, and electrically connected to the negative terminal, wherein a length of the cap plate in a first direction is less than a height of the wall part in a second direction.

Abstract: A rechargeable battery includes: a case accommodating an electrode assembly; a cap plate coupled to the case at an opening thereof; an electrode terminal electrically connected to the electrode assembly and on the cap plate; and a top plate between the electrode terminal and the cap plate, wherein the top plate and/or the electrode terminal has a slanted side at a lower side thereof facing the cap plate.

Abstract: An exemplary embodiment of the present disclosure provides a rechargeable battery including: an electrode assembly that includes a first electrode, a second electrode, and a separator interposed between the first electrode and the second electrode; a case that accommodates the electrode assembly, in one lateral surface of which a hole is formed, and that includes an opening formed in another lateral surface facing the one lateral surface; a sealing portion that is connected to the hole and seals the hole so that a lateral surface of the case is flattened; a cap plate combined with the opening; and a second terminal that is connected to the second electrode and is protruded outside the case while passing through the cap plate, wherein the hole may have a shape recessed toward the electrode assembly with respect to a surface of the case.

Abstract: A rechargeable battery includes: an electrode assembly including a first electrode and a second electrode; a case accommodating the electrode assembly; a first terminal electrically coupled to the first electrode, and a second terminal electrically coupled to the second electrode; a cap plate combined to the case and having a short-circuit hole formed therein; a membrane fixed to the cap plate and arranged in the short-circuit hole, the membrane being deformable to short-circuit the first electrode and the second electrode; and a short-circuit protrusion electrically coupled to the second electrode and arranged above the membrane to protrude theretoward, the short-circuit protrusion being arranged toward a side from a center of the short-circuit hole.

Abstract: A rechargeable battery includes an electrode assembly including a first electrode and a second electrode, electrode terminals electrically coupled to the electrode assembly, a case for accommodating the electrode assembly, and a cap plate installed at an opening of the case to seal the case, the cap plate including terminal holes terminal holes. Each of the electrode terminals includes a rivet terminal at a terminal hole of the cap plate, the rivet terminal being electrically coupled to the electrode assembly, a plate terminal outside of the cap plate, the plate terminal being electrically coupled to the rivet terminal, and a lead terminal that is elongated toward a lateral side of the plate terminal.

Abstract: A rechargeable battery includes an electrode assembly including a first electrode, a second electrode, and a separator between the first electrode and the second electrode, a case accommodating the electrode assembly, a cap plate coupled to the case, a first current collector coupled to the first electrode of the electrode assembly, and a first terminal assembly. The first terminal assembly includes a first terminal coupled to the first current collector and having a first fixed groove or a first fixed protrusion, and a second terminal having a second fixed groove coupled to the first fixed protrusion or a second fixed protrusion coupled to the first fixed groove.

Abstract: A material heating method includes: a step of charging a silicon-containing carbon steel material into a heating furnace; a step of preheating the material; a first heating step of raising the temperature of the material; a second heating step of lowering the temperature of the material so as to reduce a temperature difference between the surface and inside of the material; a third heating step of raising the temperature of the material; and a soaking step of reducing the temperature difference between the surface and inside of the material. The temperature of the material in the heating furnace is maintained at the melting point of fayalite or lower.

Abstract: A steam-blocking apparatus includes: a rolling mill configured to roll a material; a transfer roller disposed at a rear side of the rolling mill and configured to transfer the material from the rolling mill; a descaler disposed above the transfer roller and configured to spray wash water toward the transfer roller; a width-measuring part disposed at a rear side of the descaler and configured to measure the width of the material; and a shield disposed between the descaler and the width-measuring part and configured to prevent steam, generated from evaporation of the wash water, from being introduced into the width-measuring part.