Electrode coating system

An electrode coating system comprising:

• a slurry storage tank configured to store a slurry;
• a coating slot die configured to receive the slurry;
• a line through which the slurry flows from the slurry storage tank to the coating slot die, wherein the line includes a first line and a second line, wherein the first line includes a first filter configured to remove impurities from the slurry, and the second line includes a second filter configured to remove impurities from the slurry, and wherein the slurry is configured to selectively flow from the slurry storage tank to the coating slot die through the first line or the second line based on clogging of the first filter or the second filter;
• an upstream selection unit configured to direct the slurry to the first line or the second line;
• and
• a control unit configured to control a flow direction of the upstream selection unit based on whether the first filter or the second filter has failed;
• wherein the first line includes a set of a first flowmeters, wherein the set of the first flowmeters includes a first upstream flowmeter positioned upstream of the first filter with respect to the flow direction of the slurry through the first line, and a first downstream flowmeter positioned downstream of the first filter with respect to the flow direction of the slurry through the first line;
• and
• wherein the control unit is configured to determine whether the first filter has failed based on comparison between a measured flow rate of the first upstream flowmeter and a measured flow rate of the first downstream flowmeter.