STACK STRUCTURE FOR FUEL CELL AND METHOD OF THERMAL DEFORMATION ABSORPTION FOR FUEL CELL STACK

• Main Author: OKUI, Takehiko
• Format: Patent
• Language: English; French; German
• Published: 05.08.2020
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

[Problem] To provide a stack structure of a fuel cell which can sufficiently reduce deformation occurring in stacked members. [Solution] A stack structure of a fuel cell 100 is a structure in which stacked bodies (stacks 100S) each formed by alternately stacking power generation cells 101M and separators 102 are fixed to an end plate (an upper end plate 109 and an lower end plate 108) by using fixing means (a first fastening bolt 111), the power generation cells each configured to generate power by using supplied gas (anode gas AG and cathode gas CG), the separators each having a flow passage portion 102L, a gas flow-in port 100x, and a gas flow-out port 100y formed therein, the flow passage portion configured to supply the gas to the power generation cell, the gas flow-in port allowing the gas to flow into the flow passage portion, the gas flow-out port allowing the gas to flow out from the flow passage portion. The stacks 100S are arranged side by side and a first thermal deformation absorbing portion configured to absorb thermal deformation in a direction orthogonal to a stacking direction Z is formed between the stacks.