Photo
![](/sites/default/files/styles/photo_gallery_515_x_325_/public/bto_individual_electrochemical_cells_091615_0.jpg?itok=ecDIjhtD)
Caption
Individual electrochemical compressor cells are arranged in stacks. Image: Cary Zachary, 2015.
Photo
![](/sites/default/files/styles/photo_gallery_515_x_325_/public/bto_electrochemical_compressor_research_091615_0.jpg?itok=-ilarNTA)
Caption
Electrochemical compressor research unit designed to test component properties. Image: William Parmelee, 2015.
Photo
![](/sites/default/files/styles/photo_gallery_515_x_325_/public/bto_electrochemical_compressor_091615_0.jpg?itok=XubT4iL3)
Caption
Electrochemical compressor for HVAC schematic. Water and hydrogen are fed to the anode at low pressure. The hydrogen is oxidized and transported as a hydronium ion across a solid polymer electrolyte membrane using a supplied voltage. Pressurized hydrogen and water reform at the cathode. Image: Brian Kienitz, 2015.
Photo
![](/sites/default/files/styles/photo_gallery_515_x_325_/public/bto_individual_electrochemical_cells_091615_0.jpg?itok=ecDIjhtD)
Caption
Individual electrochemical compressor cells are arranged in stacks. Image: Cary Zachary, 2015.
Individual electrochemical compressor cells are arranged in stacks. Image: Cary Zachary, 2015.