Lg Energy Solution, Ltd.

Dong Hun Song

Tai Joon Seo

Woo Yong Lee

Sang Hoon Choy

Tai Jin Jung

Chang Hun Lee

Shin Wook Jeon

Chun Ho Kwon

Seong Wook Hong

Byoung Hoon Ahn

Dong Hee Sul

Chae Gyu Lee

Hyunwoo Choi

Hyun Woo Choi

Paul Choi

Dongwook Shin

Jung Sik Choi

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 insulation-coating overlay control system, an electrode plate for a secondary battery, and an insulation-coating overlay control method are provided. The system includes an insulation coater configured to coat an insulating material to allow the insulating material to cover a partial region of a coated part and a non-coated part in an electrode plate along a boundary part. The coated part has an electrode slurry coated thereon and the non-coated part does not have the electrode slurry coated thereon. An insulation-coating width measuring means is configured to measure an overlay width. An insulation coater moving means is configured to move the insulation coater and a controller is configured to control the insulation coater moving means to adjust the overlay width by comparing the measured overlay width with a predetermined overlay width setting range or an overlay width reference value.

Insulating coating overlay control system and insulating coating overlay control method

An electrode assembly is manufactured by a process. The electrode assembly comprises an anode sheet and an anode having improved stacking characteristics of an electrode based on a shoulder portion. The shoulder portion is solid. The shoulder portion is thicker than a conventional electrode tab and has no light reflection with the application of an active material when the electrode assembly is formed, including during notching, cutting of a single electrode, and stacking.

Electrode assembly comprising anode sheet and anode having improved stacking characteristics of electrode, and method of manufacturing the same

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

A die for coating an insulating liquid may include a die body configured to be positioned on a current collector with a certain space and discharge an insulating liquid; and a discharge portion configured to be formed on one surface where the insulating liquid of the die body is discharged, and form a discharge path and a discharge port where the insulating liquid is discharged, wherein the discharge portion includes a first discharge portion positioned at a front region side of a coating direction of the insulating liquid, and a second discharge portion positioned at a rear region side of the coating direction of the insulating liquid, an insulating liquid discharge path is formed between the first discharge portion and the second discharge portion, and an insulating liquid discharge port is formed between an end of the first discharge portion and an end of the second discharge portion.

Die for coating insulating liquid and method for coating insulating liquid

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Daejeon, South Korea

Dong Hun Song