Abstract: A secondary battery and a battery module are disclosed. A secondary battery includes a plurality of electrode assemblies, each including an electrode forming a tab, a case accommodating the plurality of electrode assemblies, a cap plate covering an opening of the case, and a terminal protruding from the outside of the cap plate and electrically connected to the plurality of electrode assemblies.

Abstract: A secondary battery including: an electrode assembly including first and second electrode plates alternately stacked with a separator interposed therebetween and being folded in a state of being in contact with ends of the first electrode plate and the second electrode plate; and a case accommodating the electrode assembly.

Abstract: An apparatus for manufacturing an electrode assembly includes a positive electrode plate supply part configured to supply a positive electrode plate, a positive electrode plate moving part configured to move the positive electrode plate located on the positive electrode plate supply part, a negative electrode plate supply part configured to supply a negative electrode plate, a negative electrode plate moving part configured to move the negative electrode plate located on the negative electrode plate supply part, and a stacking part on which the positive electrode plate moved from the positive electrode plate moving part and the negative electrode plate moved from the negative electrode plate moving part are alternately stacked.

Abstract: Provided is a power converting apparatus of an electric vehicle which reduces the number of power semiconductor components to efficiently perform charging, driving, and V2G (vehicle to grid) modes in accordance with choice by a user. The device includes a charging unit which charges commercial power into a battery; an inverting unit which supplies battery power to drive a motor; a switching unit which is connected to the motor, the charging unit, and the inverting unit to be turned on/off in accordance with a switching control signal in accordance with an operation mode selection; and a controller which provides the switching control signal to the switching unit in accordance with a mode selection signal to perform the selected mode operation.

Abstract: Provided is a power converting apparatus of an electric vehicle which reduces the number of power semiconductor components to efficiently perform charging, driving, and V2G (vehicle to grid) modes in accordance with choice by a user. The device includes a charging unit which charges commercial power into a battery; an inverting unit which supplies battery power to drive a motor; a switching unit which is connected to the motor, the charging unit, and the inverting unit to be turned on/off in accordance with a switching control signal in accordance with an operation mode selection; and a controller which provides the switching control signal to the switching unit in accordance with a mode selection signal to perform the selected mode operation.