Fuel cell stack i.e. low temperature-fuel cell stack, has contact strips provided at upper surface of pin, and connecting pieces provided for contacting of bipolar plate and/or electrode, where connecting pieces are provided with strips

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This patent describes an improved fuel cell stack structure, specifically for low-temperature fuel cells. The invention introduces electrically conductive contact strips on pins inserted within continuous channels in the stack, which improve electrical connections between the bipolar plates and electrodes. It also includes components and methods for better monitoring the fuel cell stack's performance.

Use CasesContent extracted from patent full text and abstract with AI.

• Power sources for electric vehicles utilizing low-temperature fuel cells
• Portable energy supplies for electronic devices
• Backup power systems using fuel cells
• Industrial applications where compact and reliable fuel cell stacks are required
• Energy generation for remote or off-grid locations

BenefitsContent extracted from patent full text and abstract with AI.

• Improved electrical connectivity within the fuel cell stack, reducing losses and inefficiencies
• Enhanced monitoring and maintenance of the fuel cell stack's performance
• Potentially increased longevity and reliability of the fuel cell components
• Simplified assembly and integration of stack components thanks to the contact strip design
• Enables more effective and robust interconnection between fuel cell layers

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Inventors & Applicants

Patent Abstract

The stack has two individual fuel cells e.g. low temperature-fuel cells, with bipolar arrangement having a bipolar plate arranged between an anode and a cathode. A continuous channel (5) is provided in a stack direction and formed by appropriate openings in the cells. A pin (4) is arranged in the channel and has contact strips (4a, 4b) at an upper surface of the pin. The strips are made of an electrically conducting material and arranged in the stack direction. Connecting pieces (6a, 6b) are provided for contacting of the bipolar plate and/or an electrode and with the contact strips. An independent claim is also included for a method for monitoring a fuel cell stack.