Device for Clamping a Fuel Cell Stack or Electrolyzer Cell Stack

Simple SummaryContent extracted from patent full text and abstract with AI.

This invention relates to a device for clamping or compressing a stack of fuel cells or electrolyzer cells. The device is specially designed to allow different pressure levels or pressure distributions between the sealing area and the active cell area in these cell stacks. The invention also discloses a method for clamping such stacks effectively.

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

• Assembly of fuel cell stacks used in vehicles or stationary power generation from hydrogen.
• Assembly of electrolyzer stacks for hydrogen production via water electrolysis.
• Manufacturing facilities producing fuel cells or electrolyzers that require optimized compression during production.
• Enhancement or retrofitting of existing fuel cell systems to improve durability and sealing.

BenefitsContent extracted from patent full text and abstract with AI.

• Improved durability and operational stability of cell stacks due to optimized pressure distribution.
• Reduced risk of leaks in the sealing area, enhancing safety and product lifetime.
• Potential for higher efficiency in fuel cell and electrolyzer systems as a result of more consistent pressure and better sealing.
• Facilitates automated assembly processes and can reduce maintenance frequency due to improved structural integrity.

Technical Classifications (CPCs)

Inventors & Applicants

Patent Abstract

The invention relates to a device for clamping a fuel cell stack or electrolyzer cell stack, wherein the fuel cell stack or electrolyzer cell stack comprises at least two fuel cells or electrolyzer cells, as well as two end plates, characterized in that the device comprises means for forming a different pressure level and/or pressure distribution for the sealing region in comparison to the active cell region of the stack. A method for clamping the resulting fuel cell stack or electrolyzer cell stack according to the invention is disclosed.