CELL STACK CLAMPING DEVICE FOR FUEL CELL

PURPOSE:To make a fuel cell cell stack compact and lightweight and to make a clamping plate compact and lightweight by installing tie rods which vertically pass through their respective manifolds. CONSTITUTION:A matrix 12 in which, for example, phosphoric acid serving as an electrolyte is impregnate...

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Bibliographic Details
Main Author UJIIE TAKASHI
Format Patent
LanguageEnglish
Published 04.09.1991
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:PURPOSE:To make a fuel cell cell stack compact and lightweight and to make a clamping plate compact and lightweight by installing tie rods which vertically pass through their respective manifolds. CONSTITUTION:A matrix 12 in which, for example, phosphoric acid serving as an electrolyte is impregnated is interposed between a pair of fuel electrode 11 and oxidizing electrode 13 each having a reaction gas passage, and fuel gas from one side and oxidizing agent gas from the other side are supplied to the electrodes 11, 13, and electrical energy produced by electrochemical reaction is taken out from the electrodes. When each manifold 2 is fitted to the side of each clamping plate 4 of a cell stack 7, each fitting 24 is fitted to each clamping plate 4 with a bolt 27, and the manifold 2 is press-fitted to the sealing surface of the stack 7 through a sealing material 9. Upper and lower clamping plates 4 are press-clamped with belleville springs 5 through tie rods 3 which passes vertically through the manifolds 2.
Bibliography:Application Number: JP19890340342