CPC G01B 7/06 (2013.01) [H01M 4/621 (2013.01)] | 11 Claims |
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.
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