Patent ID: 9660283
Date: 2017-05-23
CPC Classifications: H01M,Y02E

Claim:
1. A current measurement device that is applied to a fuel cell that is constituted by stacking and disposing cells having a membrane electrode assembly that is obtained by forming an electrode layer on each of both surfaces of an electrolyte membrane, and a first separator and a second separator that sandwich the membrane electrode assembly, and that measures a current that flows through an inside of the fuel cell, the current measurement device comprising: a measurement part that is constituted by including a resistance part having a predetermined electric resistance value and a pair of current collector parts for extracting a potential difference generated by a current that flows through the resistance part; a potential difference detector that is connected to the pair of current collector parts and detects a potential difference generated by the current that flows through the resistance part; and a current detector that detects the current that flows through the inside of the fuel cell based on the detected potential difference and the predetermined electric resistance value of the resistance part, wherein the measurement part is disposed so as to be integrated with the first separator; and the pair of current collector parts is disposed so as to overlap with the resistance part when seen from a direction orthogonal to a stacking direction of cells.