You can place any MTI split cell for SSB ( < 65x80 mm area x 90 mm H ) into the center of jig, and tighten screw by Manual torque wrench
You may use the fixture to measure solid state battery 's thermal expansion during charging and discharging combining a precision thickness checker ( click PIC 1 )
You may use the device to measure SSB max. expansion pressure by adding dead weight pieces ( as PIC 2 ), e.g adding dead weight until SSB no expansion
If you have enough budget , may consider using a gas compressive press instead the manual jig. ( PIC 3)