Patent ID: 11913782
Assignee: LG ENERGY SOLUTION, LTD.
Field: Measurement (Instruments)
Classification: CPC G  H  Y | IPC G  H

Claim 0:
1. A method for evaluating dispersibility of a binder in thickness direction in an electrode mixture layer, comprising:
setting an arbitrary reference point (no) on a surface of the electrode mixture layer in a state where current is applied to the electrode mixture layer, and measuring a potential difference (V) with the set reference point (no) at n points each having different separation distances from the set reference point (no) where n is an integer greater than or equal to 2;
setting any one potential difference among the measured potential differences as a reference voltage and calculating a voltage difference (ΔV) from the reference voltage; and
comparing the calculated voltage difference (ΔV) with a preset reference value, and calculating a dispersion in a thickness direction of a binder in the electrode mixture layer.