Module for a fuel cell battery
First Claim
Patent Images
1. A fuel cell battery comprising a plurality of stacked modules electrically connected in series;
- each module having an electrochemically active plate including a pair of electrode layers and an oxide-ion-conducting solid electrolyte layer between said electrode layers, a supporting and electron conduction structure spaced from said plate, a first plurality of contact elements secured to and between said supporting structure and one of said electrode layers in electrically conductive and fixed relation, and a second plurality of contact elements secured to and between the other of said electrode layers and said supporting structure of an adjacent module in electrically conductive and fixed relation.
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Abstract
The module for a fuel cell battery comprises an electrochemically active plate which, on the one hand, consists of an oxide-ion-conducting solid electrolyte and, on the other hand, two electrode layers applied to both sides of the electrolyte layer. At least one of the electrode layers is electrically conductively and nondetachably connected to a supporting and electron conduction structure via a plurality of regularly disposed contact elements.
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Citations
15 Claims
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1. A fuel cell battery comprising a plurality of stacked modules electrically connected in series;
each module having an electrochemically active plate including a pair of electrode layers and an oxide-ion-conducting solid electrolyte layer between said electrode layers, a supporting and electron conduction structure spaced from said plate, a first plurality of contact elements secured to and between said supporting structure and one of said electrode layers in electrically conductive and fixed relation, and a second plurality of contact elements secured to and between the other of said electrode layers and said supporting structure of an adjacent module in electrically conductive and fixed relation. - View Dependent Claims (2, 3)
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4. A module for a fuel cell battery comprising
an electrochemically active plate including an oxide-ion-conducting solid electrolyte layer and a pair of electrode layers, each electrode layer being disposed on an opposite side of said solid electrolyte layer from the other electrode layer; -
a supporting and electron conduction structure spaced from and in parallel with said plate; and a plurality of regularly disposed contact elements secured to and between said structure and one of said electrode layers of said plate in electrically conductive and fixed relation wherein each contact element is soldered to said one electrode layer.
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5. A module for a fuel cell battery comprising
an electrochemically active plate including an oxide-ion-conducting solid electrolyte layer and a pair of electrode layers, each electrode layer being disposed on an opposite side of said solid electrolyte layer from the other electrode layer; -
a supporting and electron conduction structure spaced from and in parallel with said plate; and a plurality of regularly disposed contact elements secured to and between said structure and one of said electrode layers of said plate in electrically conductive and fixed relation wherein said contact elements are secured to said one electrode layer over a total surface area of less than ten per cent of the total surface area of said one electrode layer.
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6. A module for a fuel cell battery comprising
an electrochemically active plate including an oxide-ion-conducting solid electrolyte layer and a pair of electrode layers, each electrode layer being disposed on an opposite side of said solid electrolyte layer from the other electrode layer; -
a supporting and electron conduction structure spaced from and in parallel with said plate; and a plurality of regularly disposed contact elements secured to and between said structure and one of said electrode layers of said plate in electrically conductive and fixed relation wherein said contact elements are filamentary. - View Dependent Claims (7, 8)
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9. A module for a fuel cell battery comprising
an electrochemically active plate including an oxide-ion-conducting solid electrolyte layer and a pair of electrode layers, each electrode layer being disposed on an opposite side of said solid electrolyte layer from the other electrode layer; -
a supporting and electron conduction structure spaced from and in parallel with said plate; a plurality of regularly disposed contact elements secured to and between said structure and one of said electrode layers of said plate in electrically conductive and fixed relation; and a resilient metal web secured to at least one electrode layer of said plate and said contact elements are in the form of tongues extending from said web into electrically conductive fixed contact with said supporting structure.
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10. A module for a fuel cell battery comprising
an electrochemically active plate including an oxide-ion-conducting solid electrolyte layer and a pair of electrode layers, each electrode layer being disposed on an opposite side of said solid electrolyte layer from the other electrode layer; -
a supporting and electron conduction structure spaced from and in parallel with said plate; and a plurality of regularly disposed contact elements fixedly connected to and between said structure and one of said electrode layers of said plate in an electrically conductive and fixed relation for reducing the risk of breakage of said plate during assembly of the module wherein each contact element is soldered to said one electrode layer.
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11. A module for a fuel cell battery comprising
an electrochemically active plate including an oxide-ion-conducting solid electrolyte layer and a pair of electrode layers, each electrode layer being disposed on an opposite side of said solid electrolyte layer from the other electrode layer; -
a supporting and electron conduction structure spaced from and in parallel with said plate; and a plurality of regularly disposed contact elements fixedly connected to and between said structure and one of said electrode layers of said plate in an electrically conductive and fixed relation for reducing the risk of breakage of said plate during assembly of the module wherein said contact elements are secured to said one electrode layer over a total surface area of less than ten percent of the total surface area of said one electrode layer.
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12. A module for a fuel cell battery comprising
an electrochemically active plate including an oxide-ion-conducting solid electrolyte layer and a pair of electrode layers, each electrode layer being disposed on an opposite side of said solid electrolyte layer from the other electrode layer; -
a supporting and electron conduction structure spaced from and in parallel with said plate; and a plurality of regularly disposed contact elements fixedly connected to and between said structure and one of said electrode layers of said plate in an electrically conductive and fixed relation for reducing the risk of breakage of said plate during assembly of the module wherein said contact elements are filamentary. - View Dependent Claims (13, 14)
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15. A module for a fuel cell battery comprising
an electrochemically active plate including an oxide-ion-conducting solid electrolyte layer and a pair of electrode layers, each electrode layer being disposed on an opposite side of said solid electrolyte layer from the other electrode layer; -
a supporting and electron conduction structure spaced from and in parallel with said plate; a plurality of regularly disposed contact elements fixedly connected to and between said structure and one of said electrode layers of said plate in an electrically conductive and fixed relation for reducing the risk of breakage of said plate during assembly of the module; and a resilient metal web secured to at least one electrode layer of said plate and said contact elements are in the form of tongues extending from said web into electrically conductive fixed contact with said supporting structure.
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Specification