Patent ID: 8647789

Claim:
A visualization apparatus ( 2000 ) for a proton exchange membrane fuel cell (PEMFC), comprising: a plurality of visualization apparatuses ( 1000 ) for region cells including a first current collector plate ( 600 ) provided at a first side of a membrane electrode assembly ( 50 ) of a PEMFC and a second current collector plate ( 600 ) provided at a second side of the membrane electrode assembly ( 50 ) of the PEMFC, each current collector plate ( 600 ) formed with channels ( 610 ) through which reaction gas and products flow, and transparent plates ( 700 ) provided at outer surfaces of the current collector plates ( 600 ), wherein it is configured by electrically connecting the current collector plates of the visualization apparatuses ( 1000 ) for region cells to each other in parallel; and a region cell monitoring unit ( 910 ) measuring voltage of the visualization apparatuses ( 1000 ) for each region cell, wherein fuel distribution structures ( 800 ) supplying reaction gas to the channels ( 610 ) of the visualization apparatuses ( 1000 ) for each region cell and discharging products from the channels ( 610 ) are connected to each other in series.