Meandering correction device for electrode and meandering correction method for electrode
AssigneeLG Energy Solution, Ltd.
InventorsDong Wook Kim, Seung Hoon Choi, Min Wook Kim, Yong Gyun Lee, Jong Sik Park
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Abstract
The present technology provides a meandering correction device for electrode transfer that improves instability when an electrode is input by using determination edge position sensor (EPS) value data of the electrode hat changes over time when the edge position of the electrode is feedback-controlled by an edge position control (EPC) unit before being wound around a winding core to correct the input inclination of the electrode, and a method of correcting electrode meandering.
Claims19
An electrode meandering correction device comprising:
- an input inclination adjustment mechanism of an input clamp configured to input the electrode to a winding core, wherein the input inclination adjustment mechanism is configured to rotationally adjust the inclination angle of the input clamp;
- an edge position control (EPC) unit provided with a determination edge position sensor (EPS) disposed before the winding core to measure an edge position of the electrode as a determination EPS edge position value, and an EPC roller configured to adjust the edge position of the electrode to match a determination EPS edge reference value;
- and
- a controller configured to control the EPC unit and the input inclination adjustment mechanism,
- wherein the controller feedback-controls the edge position of the electrode so that the determination EPS edge position value matches the determination EPS edge reference value, acquires determination EPS edge position value data from the determination EPS when the determination EPS edge position value changes over time to converge to the determination EPS edge reference value by the feedback control, and selects data values changed by influence of the input inclination of the input clamp from among the determination EPS edge position value data and feedback-controls the input inclination adjustment mechanism to correct the input inclination by comparison of these data values and the determination EPS edge reference value.
A method of correcting electrode meandering at the time of transferring an electrode wound around a winding core to form a jelly roll electrode assembly, the method comprising:
- measuring an edge position of an electrode when the electrode input by an input clamp reaches a determination edge position sensor (EPS) of an edge position control (EPC) unit disposed before the winding core by the determination EPS to measure a determination EPS edge position value;
- feedback-controlling the edge position of the electrode by the EPC unit so that the determination EPS edge position value matches a predetermined EPS edge reference value;
- acquiring determination EPS edge position value data from the determination EPS when the determination EPS edge position value changes over time to converge to the determination EPS edge reference value by the feedback control of the EPC unit;
- and
- selecting data values changed by influence of the input inclination of the input clamp from among the determination EPS edge position value data and rotationally adjusting the inclination angle of the input clamp through the feedback control which compares these data values and the determination EPS edge reference value.
Dependencies are inferred from the claim text.