Magnetism alignment apparatus for negative electrodes and method for manufacturing negative electrodes using same

A magnetic alignment device for a negative electrode having a negative electrode slurry including a carbon-based negative electrode active material disposed on a negative electrode collector of an electrode sheet, the magnetic alignment device comprising:

• a first magnet part and a second magnet part spaced away from each other in a vertical direction and configured to accommodate the electrode sheet traveling along a traveling direction therebetween;
• a loading amount measuring part arranged prior to the first and second magnet parts along the traveling direction, and configured to measure a loading amount of the negative electrode slurry disposed on the electrode sheet;
• and
• a controller configured to adjust a separation distance of the first magnet part and the second magnet part based on the loading amount;
• wherein each of the first and second magnet parts comprise a plurality of unit magnets arranged in a width direction of the negative electrode slurry disposed on the electrode sheet, wherein the plurality of unit magnets in one of the first and second magnet parts is configured to be individually moveable along the vertical direction to adjust the separation distance, so as to magnetically align the plurality of unit magnets of the other one of the first and second magnet parts being centered on the electrode sheet, and
• wherein the magnetic alignment device is configured to orient the carbon-based negative electrode active material by applying a magnetic force.