Current collector, electrode for power storage device, and secondary battery

Abstract

A current collector, an electrode for an electrical storage device, and a secondary battery, the current collector having a resin layer and a conductive layer, a differential scanning calorimetry curve of the resin layer measured in a temperature range of 30°C to 300°C during temperature elevation has at least one endothermic peak, for the endothermic peak having the highest absolute value of peak intensity among the at least one endothermic peak, when a temperature width in which the peak intensity is 80% is set as T1 and a peak temperature is set as T2, a ratio of the T1 to the T2 (T1 / T2) exceeds 0 and is 0.9% or less.

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