Method of manufacturing battery

A method of manufacturing a wound electrode assembly for a battery in which a first separator, a negative electrode plate, a second separator, and a positive electrode plate are wound together by a winding core of a winding device, the method comprising:

• providing the winding device including the winding core, said winding core including a first component and a second component;
• providing the first separator, the negative electrode plate, the second separator, and the positive electrode plate;
• winding the first separator, the negative electrode plate, the second separator, and the positive electrode plate onto the winding core, to form the wound electrode assembly;
• and
• removing the wound electrode assembly from the winding core, wherein:
• the removing of the wound electrode assembly from the winding core includes
• moving at least one of the first component or the second component in a direction in which a distance between the first component and the second component decreases so that a diameter of the winding core decreases,
• clamping the wound electrode assembly in a neighborhood of a boundary between the first component and the second component, and
• removing the wound electrode assembly from the winding core.

A method of manufacturing a wound electrode assembly for a battery in which a first separator, a negative electrode plate, a second separator, and a positive electrode plate are wound together by a winding core of a winding device, the method comprising:

• providing the winding device including the winding core, said winding core including a first component and a second component;
• providing the first separator, the negative electrode plate, the second separator, and the positive electrode plate;
• winding the first separator, the negative electrode plate, the second separator, and the positive electrode plate onto the winding core, to form the wound electrode assembly;
• and
• removing the wound electrode assembly from the winding core, wherein:
• the removing of the wound electrode assembly from the winding core includes
• moving at least one of the first component or the second component in a direction in which a distance between the first component and the second component decrease so that a diameter of the winding core decreases, and
• removing the wound electrode assembly from the winding core,
• a direction in which the winding core extends is defined as a first direction,
• a direction in which a diameter of the winding core decreases is defined as a second direction,
• a direction in which the winding core is clamped from both sides in the removing of the wound electrode assembly from the winding core is defined as a third direction, and
• the third direction is perpendicular to the first direction, and forms an angle within a range of 90 degrees±30 degrees with respect to the second direction.