CURRENT MEASUREMENT DEVICE

PROBLEM TO BE SOLVED: To provide a current measurement device having a current measurement part including a resistor, which can improve the current measurement accuracy, while suppressing lowering of an allowable current in the resistor.SOLUTION: A resistor 33 in a current measurement part 30 comprises: an overlapping portion to overlap with a first electrode 31 electrically connected to a cell; and a non-overlapping portion not to overlap with the first electrode 31 in the view from the thickness direction of a measurement plate. Thereby even if a position of the first connection part 30a is changed to a position near to a central part of the first electrode 31, a resistance value of the resistor 33 can be sufficiently secured. An allowable current in the resistor 33 (maximum current flowing into the resistor) can be secured, because a reduction of a cross section area in a direction perpendicular to a direction of electric current flow in the resistor 33, are not necessary. Therefore decrease of the allowable current in the resistor 33 on the current measurement part 33 is suppressed, while the current measurement accuracy of a current measurement device can be improved.