| CPC G01N 13/00 (2013.01) [H01M 4/623 (2013.01)] | 20 Claims |
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1. A system for determining a filter that is among a plurality of filters and that has a pore size in an optimal pore size range for evaluating a dissolution quality of a binder solution for a secondary battery electrode, the system comprising:
a pressure container which accommodates the binder solution and which connects to a first filter among the plurality of filters by a pipe;
a pressure medium supply source which supplies pressure medium of a predetermined pressure to the pressure container;
a flow rate measuring unit which measures a flow rate of the binder solution filtered by the first filter; and
a determination unit which measures a time point when the flow rate reaches a specific value predetermined in consideration of an initial flow rate,
wherein the determination unit is configured to repeat measurement of the flow rate for each of remaining filters among the plurality of filters, each filter among the plurality of filters having a different pore size, and
wherein the determination unit is configured to determine the filter that has the pore size in the optimal pore size range based on the time point.
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