Lg Energy Solution, Ltd.

Chun Ho Kwon

Dong Hyeuk Park

Yong Nam Kim

Tai Jin Jung

Beomsu Kim

Dong Hun Song

Haksoo Lee

Woo Yong Lee

Chung Hee Lee

Sung Chul Park

Se Hyun Yoon

Tai Joon Seo

Hyeon Woo Jang

Sang Wook Kim

Jeong Woo Hong

Byung Joo Jeong

The present invention relates to a method for manufacturing an electrode assembly. The method for manufacturing the electrode assembly comprises: a step (a) of transferring a plurality of radical units one by one from a first set position to a second position; a step (b) of measuring a distance between a full width end that is an end of the first electrode in a full width direction and a full width end that is an end of the second electrode in a full width direction; a step (c) of measuring a distance (B) from a reference point (O) of the second set position to the full width end of the first electrode of the first radical unit; a step (d) of stacking the second radical unit on the first radical unit; a step (e) of measuring a distance (B) from the reference point (O) of the second set position to the full width end of the first electrode of the second radical unit; a step (f) of measuring a distance (C) between the full length end of the first electrode of the first radical unit and the full width end of the second electrode of the second radical unit by adding the distances (B, A) to each other and subtracting the distance (B) from the sum of the distances (B, A); and a step (g) of comparing the distances (C, A) to each other to determine whether stacking is defective.

Apparatus and method for manufacturing electrode assembly and method for manufacturing secondary battery comprising the same

An electrode assembly manufacturing apparatus includes a stack table, a separator supply unit, first and second electrode supply units, and a side sealing device. A stack of a first electrode, a second electrode, and a separator between the first and the second electrode are stackable on the stack table. The separator supply unit is configured for supplying the separator to the stack table. The first electrode supply unit is configured for stacking the first electrode on a section of the separator on the stack table. The second electrode supply unit stacks the second electrode on a further section of the separator on the first electrode. A side sealing device heats at least one side surface of the stack.

Assembly manufacturing equipment and method for electrode assembly

A method for manufacturing an electrode assembly comprises: a primary stack manufacturing step in which a first electrode and a second electrode are alternately stacked with a separator on a top surface of a table; a secondary stack manufacturing step in which the first electrode and the second electrode are alternately stacked with the separator on the primary stack so that the second electrode is stacked to be disposed at the lowermost end; a stack rotating step in which the primary stack and the secondary stack are rotated together at an angle of 180° to change positions of the primary stack and the secondary stack; and an electrode assembly manufacturing step in which the first electrode and the second electrode are alternately stacked with the separator on the primary stack so that the second electrode is stacked to be disposed at the lowermost end to manufacture a tertiary stack.

Method for manufacturing electrode assembly

Growing community of inventors

Daejeon, South Korea

Chun Ho Kwon