Fixture for Decoupling Response of a Battery Cell from Coupled Cell and Foam Interaction

摘要

The present invention provides a fixture composed of rigid plate 1 and rigid plate 4 attached at a fixed displacement using lie rods 5.Displacement measurement device 6 is used to measure the thickness change in the battery cell 2.This allows the thickness of the battery cell to be measured in response to packaging foam 3 due to perturbation from equilibrium to due charging or discharging or growth over life.If desired the addition of spacer sleeve 7 can be added to prevent the foam from impeding the displacement measurement device 6 response.If desired the addition of roller 8 and pin 9 can be added if the friction between the spacer 7 and plate 4 restricts the battery cell 2 change in thickness response.