The effect of compression on Individual Pressure Vessel Nickel/Hydrogen componentsCompression tests were performed on representative Individual Pressure Vessel (IPV) Nickel/Hydrogen cell components in an effort to better understand the effects of force on component compression and the interactions of components under compression. It appears that the separator is the most easily compressed of all of the stack components. It will typically partially compress before any of the other components begin to compress. The compression characteristics of the cell components in assembly differed considerably from what would be predicted based on individual compression characteristics. Component interactions played a significant role in the stack response to compression. The results of the compression tests were factored into the design and selection of Belleville washers added to the cell stack to accommodate nickel electrode expansion while keeping the pressure on the stack within a reasonable range of the original preset.
Document ID
19890027910
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Manzo, Michelle A. (NASA Lewis Research Center Cleveland, OH, United States)
Perez-Davis, Marla E. (NASA Lewis Research Center Cleveland, OH, United States)