US 12,438,177 B2
Fuel cell, electrochemical device, and method of tightening and adjusting fuel cell
Takayuki Tanaka, Yokohama Kanagawa (JP); and Isamu Kikuchi, Kawasaki Kanagawa (JP)
Assigned to Kabushiki Kaisha Toshiba, Kawasaki (JP); and Toshiba Energy Systems & Solutions Corporation, Kawasaki (JP)
Filed by KABUSHIKI KAISHA TOSHIBA, Tokyo (JP); and TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION, Kawasaki (JP)
Filed on Aug. 22, 2022, as Appl. No. 17/893,120.
Claims priority of application No. 2021-135899 (JP), filed on Aug. 23, 2021.
Prior Publication US 2023/0054220 A1, Feb. 23, 2023
Int. Cl. H01M 8/248 (2016.01); H01M 8/2404 (2016.01)
CPC H01M 8/248 (2013.01) [H01M 8/2404 (2016.02)] 12 Claims
OG exemplary drawing
 
1. A fuel cell comprising:
a cell stacked body including a plurality of single unit fuel cells stacked one on another;
a collecting plate located on the cell stacked body in a stacking direction of the single unit fuel cells;
an insulating plate located on the collecting plate; and
a tightening structure located on the insulating plate and configured to hold the collecting plate and the insulating plate on the cell stacked body by being tightened toward the cell stacked body,
wherein the tightening structure includes a first tightening plate including a planar portion in surface contact with the insulating plate, and a second tightening plate located on the first tightening plate and configured to press the first tightening plate against the insulating plate by being tightened toward the cell stacked body.